Polarization-selectable cavity locking method for generation of laser Compton scattered γ-rays
|
|
- Mitchell Dean
- 5 years ago
- Views:
Transcription
1 Polarization-selectable cavity locking method for generation of laser Compton scattered γ-rays Atsushi Kosuge, 1,* Michiaki Mori, 1 Hajime Okada, 1 Ryoichi Hajima, 2 and Keisuke Nagashima 1 1 Advanced Photon Research Center, Japan Atomic Energy Agency, Umemidai, Kizugawa, Kyoto , Japan 2 Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki Japan * kosuge.atsushi@jaea.go.jp Abstract: Nowadays, generation of energy-tunable, monochromatic γ-rays is needed to establish a nondestructive assay method of nuclear fuel materials. The γ-rays are generated by collision of laser photons stored in a cavity and relativistic electrons. We propose a configuration of an enhancement cavity capable of performing polarization control fabricated by a combination of a four-mirror ring cavity with a small spot inside a cavity and a three-mirror of reflective optics as an image inverter for polarization-selectable γ-rays. The image inverter introduces a phase shift of specific polarization which can be used to generate an error signal to lock an optical cavity at a resonance condition Optical Society of America OCIS codes: ( ) Optical resonators; ( ) Polarization; ( ) Fiber optics amplifiers and oscillators; ( ) Ultrafast technology. References and links 1. C. Gohle, T. Udem, M. Herrmann, J. Rauschenberger, R. Holzwarth, H. A. Schuessler, F. Krausz, and T. W. Hänsch, A frequency comb in the extreme ultraviolet, Nature 436(7048), (2005). 2. R. J. Jones, K. D. Moll, M. J. Thorpe, and J. Ye, Phase-coherent frequency combs in the vacuum ultraviolet via high-harmonic generation inside a femtosecond enhancement cavity, Phys. Rev. Lett. 94(19), (2005). 3. I. Pupeza, T. Eidam, J. Rauschenberger, B. Bernhardt, A. Ozawa, E. Fill, A. Apolonski, T. Udem, J. Limpert, Z. A. Alahmed, A. M. Azzeer, A. Tünnermann, T. W. Hänsch, and F. Krausz, Power scaling of a high-repetitionrate enhancement cavity, Opt. Lett. 35(12), (2010). 4. I. Pupeza, S. Holzberger, T. Eidam, H. Carstens, D. Esser, J. Weitenberg, P. Rußbüldt, J. Rauschenberger, J. Limpert, Th. Udem, A. Tünnermann, T. W. Hänsch, A. Apolonski, F. Krausz, and E. Fill, Compact highrepetition-rate source of coherent 100 ev radiation, Nat. Photonics 7(8), (2013). 5. A. Ozawa, J. Rauschenberger, Ch. Gohle, M. Herrmann, D. R. Walker, V. Pervak, A. Fernandez, R. Graf, A. Apolonski, R. Holzwarth, F. Krausz, T. W. Hänsch, and Th. Udem, High harmonic frequency combs for high resolution spectroscopy, Phys. Rev. Lett. 100(25), (2008). 6. A. Cingöz, D. C. Yost, T. K. Allison, A. Ruehl, M. E. Fermann, I. Hartl, and J. Ye, Direct frequency comb spectroscopy in the extreme ultraviolet, Nature 482(7383), (2012). 7. R. Hajima, T. Hayakawa, N. Kikuzawa, and E. Minehara, Proposal of Nondestructive Radionuclide Assay Using a High-Flux Gamma-Ray Source and Nuclear Resonance Fluorescence, J. Nucl. Sci. Technol. 45(5), (2008). 8. T. Hayakawa, N. Kikuzawa, R. Hajima, T. Shizuma, N. Nishimori, M. Fujiwara, and M. Seya, Nondestructive assay of plutonium and minor actinide in spent fuel using nuclear resonance fluorescence with laser Compton scattering γ-rays, Nucl. Instr. Meth. A 621(1-3), (2010). 9. R. W. P. Drever, J. L. Hall, F. V. Kowalski, J. Hough, G. M. Ford, A. J. Munely, and H. Ward, Laser phase and frequency stabilization using an optical resonator, Appl. Phys. B 31(2), (1983). 10. D. A. Shaddock, M. B. Gray, and D. E. McClelland, Frequency locking a laser to an optical cavity by use of spatial mode interference, Opt. Lett. 24(21), (1999). 11. T. W. Hänsch and B. Couillaud, Laser frequency stabilization by polarization spectroscopy of a reflecting reference cavity, Opt. Commun. 35(3), (1980). 12. Y. Honda, H. Shimizu, M. Fukuda, T. Omori, J. Urakawa, K. Sakaue, H. Sakai, and N. Sasao, Stabilization of a non-planar optical cavity using its polarization property, Opt. Commun. 282(15), (2009). 13. R. H. Dixon, Use of a three-mirror image rotator in a laser-produced plasma experiment, Appl. Opt. 18(23), (1979). 14. S. Saraf, R. L. Byer, and P. J. King, High-extinction-ratio resonant cavity polarizer for quantum-optics measurements, Appl. Opt. 46(18), (2007). (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6613
2 15. R. C. Jonse, New calculus for the treatment of optical systems: electromagnetic theory, J. Opt. Soc. Am. 46(2), (1956). 1. Introduction A resonantly enhanced optical pulse inside the cavity, namely enhancement cavity, has recently received broad attention because of high harmonic generation (HHG) inside a cavity with a multimegahertz repetition rate [1 4]. Owing to its outstanding optical properties, such as a short wavelength region and a high repetition rate, the HHG from an enhancement cavity is expected to be used for high-resolution spectroscopy [5, 6]. Nowadays, in the field of accelerator physics, the generation of hard X-ray or even γ-ray via inverse Compton scattering of laser photons stored in a cavity by a relativistic electron beam, which is produced by Energy Recovery Linac (ERL), is expected in many scientific and industrial applications. In particular, it has been proposed that the ERL γ-ray source is applied for the nondestructive measurement of isotope for the purpose of nuclear security and safeguards. We aim for the realization of a new nondestructive assay method for uranium 235, plutonium 239, and minor actinides in spent nuclear fuel assembly in a water pool [7]. Nuclear fuel materials are detected using nuclear resonance fluorescence with laser Compton scattering (LCS) γ-rays [8]. The angular distribution of nuclear resonance fluorescence γ-ray via multipole transitions is dependent on the polarization of LCS γ-ray. From the principle of Compton scattering, the polarization of the LCS γ-rays is identical with that of the laser. In the nondestructive assay for nuclear materials, this polarization control enables us to distinguish between the signal from the nuclear resonance fluorescence and background γ-rays. In this paper, we propose the enhancement of optical pulses inside the cavity performing polarization control fabricated by a combination of a four-mirror ring cavity with a small spot inside a cavity and a three-mirror of reflective optics as an image inverter for polarization-selectable LCS γ-rays. 2. Scheme of the cavity locking technique We employ a four-mirror ring cavity with two concave mirrors to produce a small spot inside a cavity. If this cavity is employed for a LCS γ-ray source, in which γ-rays are generated by collision of laser photons and relativistic electrons, a small spot at a point inside the cavity is required because of the collision spot size of the ERL electron beam is about 10 μm. To enhance an optical pulse inside a cavity, the repetition frequency of the enhancement cavity must be locked actively to maintain the resonance condition between the cavity and the seeding laser. A feedback loop to lock the cavity requires an error signal which becomes zero when the value of the controlled parameter and the target value are equal. Various schemes have been developed to obtain an error signal to lock the cavity, such as the Pound- Drever-Hall method which uses the phase modulation sidebands of the frequency as an error signal [9], the method based on the spatial mode (Tilt-locking method) which utilizes the spatial modes interference between the carrier field (TEM 00 ) and a directly reflected [10], and the Hänsch-Couillaud (HC) method which utilizes polarization by monitoring changes in the polarization of the light field reflected from the cavity [11]. The HC method comprises an internal element such as a Brewster plate, a polarizer or a birefringent crystal. This method is very versatile owing to its simple setup, but this transmission element may limit the intracavity power due to optical damage. Recently, in contrast to the original HC scheme, some variations of HC method have been reported without an additional transmission element inside the cavity [3, 12]. In this study, a three-mirror image inverter which consists of two 45 HR mirrors and one 0 HR mirror [13] is used for cavity locking on the basis of HC method. Since only the horizontal image is inverted through the three-mirror image inverter, it corresponds to the (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6614
3 Fig. 1. (a) Schematic diagrams of the enhancement locking cavity which consists of a fourmirror ring cavity and a three-mirror image inverter, and a cavity locking loop configuration. (b) Three-mirror image inverter system. A typical image is traced through the system for illustration. phase shift of π with respect to the vertical phase. In the field of interferometric gravitational wave detection, this method is used as not only a cavity locking but also a spatial, spectral and polarization filter [14]. Furthermore, the linearly polarization inside the locking cavity is able to select vertical and horizontal direction by controlling the incident polarization. In order to demonstrate our cavity locking stabilization method, we set up an enhancement cavity as shown in Fig. 1, which is a four-mirror ring cavity, a three-mirror image inverter and a cavity locking configuration. The incident light pulses from an Yb-doped fiber laser are assumed to be linearly polarized and polarization is adjusted to be at an arbitrary angle of θ with respect to horizontal plane by using a half-wave plate (HWP). The electric field of injected light wave can be decomposed into horizontal and vertical components, i.e. E i // and E i, which can be expressed in the plane wave approximation E i // = E i cos θ, E i E i = sinθ (1) where E i is the amplitude of the injection light wave. The incident light with controlled polarization is injected to the enhancement cavity through an input coupler. The reflected light from the input coupler is used for a reference signal of the HC locking scheme. Here, the reflected light contains both direct reflection of the incident light and transmission of the light stored in the cavity. The complex amplitude of the reflection light wave, E r // and E r, can be written as follows 1 // exp r i T R i E// = E// R1 + 1 R1 R// exp i r i T1 R exp i E = E R1 + 1 R1 R exp i ( δ π) ( δ π) [ δ ] [ δ ] where R 1 and T 1 are the reflectivity and transmissivity of the input coupler. We ignore the internal loss of the input coupler, i.e. R 1 + T 1 = 1. R // and R are the amplitude reduction factor of the horizontal and vertical optical component inside the cavity, respectively. δ is the roundtrip phase shift due to free space propagation in the cavity, determined by the cavity length L. Here, the first minus sign in the right-hand side of Eq. (2) originates from the phase shift π for the reflected light. When the phase shift satisfies the condition δ = 2mπ (m = any integer), only the vertical polarization light can be enhanced inside the cavity. Conversely, when the phase shift satisfies the condition δ = (2m + 1)π (m = any integer), only the horizontal polarization light can be enhanced inside the cavity. When the cavity is on-resonance, both reflection coefficients, i.e. E r // and E r, are real so that their superposition is linearly polarized. When the cavity is off-resonance, however, owing to the appearance of the imaginary parts of (2) (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6615
4 E r // and E r, the reflected light acquires an elliptical polarization. The magnitude of the ellipticity depends on the deviation of phase shift from the resonance. The reflection light from the input coupler is guided to the cavity locking loop [Fig. 1(a)] consisting of a quarter-wave plate (QWP), a polarizing beam splitter (PBS) and two photodiodes (PDs). Elliptically polarized light can be divided into left-hand and right-hand circularly polarized components with different amplitude. The QWP generates linearly polarized light from these two components with orthogonal components that are detected by the two PDs. Namely, an error signal is proportional to the difference of the intensities measured with PD1 and PD2. E 1 and E 2 are the electric fields after passing through the QWP and PBS. And the light intensity I 1 and I 2 are proportional to the squared electric field E 1 2 and E 2 2. The electric field of E 1 and E 2 can be derived by using the Jones matrices [15] as follows r E1 1 1 ± 11 0E // r E = i ± E where the first Jones matrix describes a PBS and the second one a QWP with the fast axis horizontal. Hence, the difference signal of the light intensity is readily calculated 2 2 r r 2 r r // // I I = E E = E + ie E ie (4) The light intensity I 1 and I 2 at the two outputs are monitored by two PDs (PD1 and PD2) connected to a differential amplifier. Equations (1), (2) and (4) show that the differential signal of the light intensities (I 1 - I 2 ) is related to the cavity locking as follows T R ( R + R// )( 1+ R R// ) sinδ ( 1+ RIC R 2 RIC R cosδ)( 1+ RIC R// + 2 RIC R// cosδ) IC IC i i 1 2 = // I I E E We calculate the light intensity monitored by PDs, I 1, I 2 and (I 1 I 2 ), and the intracavity power as a function of the round-trip phase shift δ to apply the HC method for the cavity locking. Figure 2 shows calculated results, where we use the parameters in our experiment: R 1 (3) (5) Fig. 2. Calculated error signal I 1 (Green curve), I 2 (Red curve), I 1 - I 2 (Blue curve) and amplitude of the intracavity power (Black curve) where R 1 = 0.95, T 1 = 0.05, R // = 0.94, and R = 0.97.These signals and the amplitude are plotted as a function of the round-trip phase shiftδ. = 0.95, T 1 = 0.05, R // = 0.94 and R = The error signal of (I 1 I 2 ) shows a steep zerocrossing at a resonance phase shift so that we can employ the signal for the cavity locking. By using a servo loop system, it is possible to lock the cavity to a resonance point. The horizontally and vertically polarized light are selectively enhanced in the cavity for phase shift (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6616
5 of δ = 2mπ and δ = (2m + 1)π, respectively. Thus, when injected light containing both polarizations is incident on an enhancement cavity, only one polarized light can be enhanced at a certain cavity length. 3. Experiments We have performed the cavity locking experiment using the four-mirror ring cavity with the three-mirror image inverter which is based on the HC scheme. The seed pulses are generated by a home-built mode-locked Yb-doped fiber oscillator with 75 MHz repetition rate. The pulses sent to a two-stage Yb-doped fiber based narrow bandwidth chirp pulse amplifier with two bandpass filters and a spatial mask. After the amplification, the FWHM bandwidth of 1.8 nm centered around 1030 nm are obtained. Subsequently, the pulses are compressed to 1.2 ps with two fused silica transmission gratings. After the compression, the average power is 600 mw. Our enhancement locking cavity is composed of a ring resonator whose round-trip time is adjusted to inverse of the seeding laser repetition rate. Instead of the 0 HR mirror of the three-mirror image inverter, a 1% transmittance mirror is placed in order to measure the light property of inside the cavity, such as light polarization, power stability and beam profile under locking condition. The input coupler has a reflectivity of 95% which is almost equal to all reflectivity of the cavity except the input coupler. The error signal is observed as a function of the cavity length, which is varied with a piezo electric transducer (PZT), attached to the one of the cavity mirror. The reflection light from the input coupler is guided to the cavity looking loop system and it can be used successfully to lock the cavity to resonance by means of a digital-based cavity lock system (TEM Messtechnik GmbH). Figures 3(a) and 3(b) show the measured resonances for linear scan of the cavity length and the typical error signal observed when the injected light has linear polarization that is rotated in θ = 45 relative to the horizontal plane, respectively. The PZT in the cavity is driven periodically with a voltage which is proportional to the red signal and the black signal indicates the measured intracavity power, measured with a PD through one of the cavity mirror. The polarization of the two adjacent peaks of the resonance condition (δ = 0 and δ = π in Fig. 3(a)) is at right angle to each other. Figure 3(b) shows the observed error signal as a function of the round-trip phase shift δ. As can be seen in Fig. 3(b), this signal is consistent Fig. 3. (a) Observation of the intracavity power, measured with a PD through one of the cavity mirror (Black) while scanning the cavity length by the piezo-controlled mirror (Red). (b) Experimentally observed error signal for R 1 = 0.95 as a function of the round-trip phase shift δ. The lock-points (zero-crossing point) are denoted by crosses (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6617
6 Fig. 4. Polar Plots of the normalized intensity which is detected by PD versus the angle of the rotatable linear polarizer oriented along an axis described by polar angle relative to the horizontal. The green circle describes the light incident on the cavity, which is adjusted by the HWP (Pos. A in Fig. 1(a)). The incident light is polarized in (a) θ = 45 and (b) θ = 45 with respect to the horizontal direction. The blue square describes the polarization of the light cavity transmission under cavity locking condition, which is measured with a PD through one of the cavity mirrors (Pos. B in Fig. 1(a)). The solid lines are fits to the experimental data. The red arrows indicate the direction of polarization. with the calculated error signal in Fig. 2. Then, Fig. 4 shows a polar plot of the normalized intensity which is detected by PD versus the angle of the rotatable linear polarizer oriented along an axis described by polar angle relative to the horizontal plane. The solid lines are fitted with a sine function to the experimental data. The injected light is adjusted to be at an angle of Fig. 4(a) θ = 45 and Fig. 4(b) θ = 45 with respect to the horizontal plane with a HWP before the cavity (Pos. A in Fig. 1(a)). The transmitted light from one of the cavity mirrors (Pos. B in Fig. 1(a)), is polarized almost horizontally [Fig. 4(a)] and vertically [Fig. 4(b)] direction at right angles to the horizontal plane, and the polarization is linearly polarized. With the lock-point properly adjusted by the servo loop system, the long-term cavity locking stability of the enhancement cavity recorded over a period of 30 min., which is 0.8% standard deviation as demonstrated in Fig. 5(a). The cavity locking stability can be further improved by suppressing the mechanical vibration and air turbulence in the laboratory environment. Also shown in Fig. 5(b) are the M2 measurement and the spatial profile of the enhanced beam, recorded at Pos. B in Fig. 1(a). Using a scanning beam profiler and a focusing lens (f = 200 Fig. 5. (a) Locking stability of the enhancement cavity recorded over a period of 30 min., which is 0.8% standard deviation. (b) M2 measurement and spatial profile of the enhanced beam (inset). # $15.00 USD (C) 2014 OSA Received 26 Dec 2013; revised 26 Feb 2014; accepted 2 Mar 2014; published 14 Mar March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6618
7 mm), we measured the beam quality M 2 factor of the enhanced beam. The measurement resulted in a near diffraction-limited beam with a measured M 2 below 1.1. The locking power stability and spatial profile are monitored by observing the leakage light from the cavity mirror with a power meter (OPHIR) and a CCD camera (The Imaging Source Europe GmbH). 4. Conclusion In conclusion, we have demonstrated the enhancement of optical pulses inside the cavity with a linear polarization at a resonance condition with a high spatial beam quality. Our proposed enhancement cavity consists of a four-mirror ring cavity with a small spot inside a cavity and a three-mirror image inverter to obtain an error signal and this cavity locking method is a variation of the HC method. By adopting this technique, we obtained 20 of enhancement factor and controlling the angle of the incident polarization enabled us to select the polarization inside the cavity. This cavity locking technique and further increase of enhancement factor are expected to generate the linearly and polarization selectable LCS γ- rays for the purpose of nondestructive detection of isotopes in the spent nuclear fuel by using nuclear resonance fluorescence. Acknowledgments This work is supported by MEXT Technology Development Programs of Measurement and Detection of Nuclear Material. (C) 2014 OSA 24 March 2014 Vol. 22, No. 6 DOI: /OE OPTICS EXPRESS 6619
Development of a Laser Repetition Rate Stabilization System for an Intense Laser-Compton Scattering γ-ray Source )
Development of a Laser Repetition Rate Stabilization System for an Intense Laser-Compton Scattering γ-ray Source ) Michiaki MORI, Atsushi KOSUGE, Hajime OKADA, Hiromitsu KIRIYAMA, Yoshihiro OCHI, Momoko
More informationPolarization Sagnac interferometer with a common-path local oscillator for heterodyne detection
1354 J. Opt. Soc. Am. B/Vol. 16, No. 9/September 1999 Beyersdorf et al. Polarization Sagnac interferometer with a common-path local oscillator for heterodyne detection Peter T. Beyersdorf, Martin M. Fejer,
More informationDESIGN OF COMPACT PULSED 4 MIRROR LASER WIRE SYSTEM FOR QUICK MEASUREMENT OF ELECTRON BEAM PROFILE
1 DESIGN OF COMPACT PULSED 4 MIRROR LASER WIRE SYSTEM FOR QUICK MEASUREMENT OF ELECTRON BEAM PROFILE PRESENTED BY- ARPIT RAWANKAR THE GRADUATE UNIVERSITY FOR ADVANCED STUDIES, HAYAMA 2 INDEX 1. Concept
More informationPound-Drever-Hall Locking of a Chip External Cavity Laser to a High-Finesse Cavity Using Vescent Photonics Lasers & Locking Electronics
of a Chip External Cavity Laser to a High-Finesse Cavity Using Vescent Photonics Lasers & Locking Electronics 1. Introduction A Pound-Drever-Hall (PDH) lock 1 of a laser was performed as a precursor to
More informationOptical phase-coherent link between an optical atomic clock. and 1550 nm mode-locked lasers
Optical phase-coherent link between an optical atomic clock and 1550 nm mode-locked lasers Kevin W. Holman, David J. Jones, Steven T. Cundiff, and Jun Ye* JILA, National Institute of Standards and Technology
More informationSUPPLEMENTARY INFORMATION DOI: /NPHOTON
Supplementary Methods and Data 1. Apparatus Design The time-of-flight measurement apparatus built in this study is shown in Supplementary Figure 1. An erbium-doped femtosecond fibre oscillator (C-Fiber,
More informationCharacteristics of point-focus Simultaneous Spatial and temporal Focusing (SSTF) as a two-photon excited fluorescence microscopy
Characteristics of point-focus Simultaneous Spatial and temporal Focusing (SSTF) as a two-photon excited fluorescence microscopy Qiyuan Song (M2) and Aoi Nakamura (B4) Abstracts: We theoretically and experimentally
More informationOptical generation of frequency stable mm-wave radiation using diode laser pumped Nd:YAG lasers
Optical generation of frequency stable mm-wave radiation using diode laser pumped Nd:YAG lasers T. Day and R. A. Marsland New Focus Inc. 340 Pioneer Way Mountain View CA 94041 (415) 961-2108 R. L. Byer
More informationA new picosecond Laser pulse generation method.
PULSE GATING : A new picosecond Laser pulse generation method. Picosecond lasers can be found in many fields of applications from research to industry. These lasers are very common in bio-photonics, non-linear
More informationLOPUT Laser: A novel concept to realize single longitudinal mode laser
PRAMANA c Indian Academy of Sciences Vol. 82, No. 2 journal of February 2014 physics pp. 185 190 LOPUT Laser: A novel concept to realize single longitudinal mode laser JGEORGE, KSBINDRAand SMOAK Solid
More informationThe Lightwave Model 142 CW Visible Ring Laser, Beam Splitter, Model ATM- 80A1 Acousto-Optic Modulator, and Fiber Optic Cable Coupler Optics Project
The Lightwave Model 142 CW Visible Ring Laser, Beam Splitter, Model ATM- 80A1 Acousto-Optic Modulator, and Fiber Optic Cable Coupler Optics Project Stephen W. Jordan Seth Merritt Optics Project PH 464
More informationCHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT
CHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT In this chapter, the experimental results for fine-tuning of the laser wavelength with an intracavity liquid crystal element
More informationLaser stabilization and frequency modulation for trapped-ion experiments
Laser stabilization and frequency modulation for trapped-ion experiments Michael Matter Supervisor: Florian Leupold Semester project at Trapped Ion Quantum Information group July 16, 2014 Abstract A laser
More informationMechanism of intrinsic wavelength tuning and sideband asymmetry in a passively mode-locked soliton fiber ring laser
28 J. Opt. Soc. Am. B/Vol. 17, No. 1/January 2000 Man et al. Mechanism of intrinsic wavelength tuning and sideband asymmetry in a passively mode-locked soliton fiber ring laser W. S. Man, H. Y. Tam, and
More informationFPPO 1000 Fiber Laser Pumped Optical Parametric Oscillator: FPPO 1000 Product Manual
Fiber Laser Pumped Optical Parametric Oscillator: FPPO 1000 Product Manual 2012 858 West Park Street, Eugene, OR 97401 www.mtinstruments.com Table of Contents Specifications and Overview... 1 General Layout...
More informationPolarization Experiments Using Jones Calculus
Polarization Experiments Using Jones Calculus Reference http://chaos.swarthmore.edu/courses/physics50_2008/p50_optics/04_polariz_matrices.pdf Theory In Jones calculus, the polarization state of light is
More informationG. Norris* & G. McConnell
Relaxed damage threshold intensity conditions and nonlinear increase in the conversion efficiency of an optical parametric oscillator using a bi-directional pump geometry G. Norris* & G. McConnell Centre
More informationA CW seeded femtosecond optical parametric amplifier
Science in China Ser. G Physics, Mechanics & Astronomy 2004 Vol.47 No.6 767 772 767 A CW seeded femtosecond optical parametric amplifier ZHU Heyuan, XU Guang, WANG Tao, QIAN Liejia & FAN Dianyuan State
More informationDivided-pulse amplification for terawatt-class fiber lasers
Eur. Phys. J. Special Topics 224, 2567 2571 (2015) EDP Sciences, Springer-Verlag 2015 DOI: 10.1140/epjst/e2015-02566-8 THE EUROPEAN PHYSICAL JOURNAL SPECIAL TOPICS Review Divided-pulse amplification for
More informationR. J. Jones Optical Sciences OPTI 511L Fall 2017
R. J. Jones Optical Sciences OPTI 511L Fall 2017 Semiconductor Lasers (2 weeks) Semiconductor (diode) lasers are by far the most widely used lasers today. Their small size and properties of the light output
More informationPh 77 ADVANCED PHYSICS LABORATORY ATOMIC AND OPTICAL PHYSICS
Ph 77 ADVANCED PHYSICS LABORATORY ATOMIC AND OPTICAL PHYSICS Diode Laser Characteristics I. BACKGROUND Beginning in the mid 1960 s, before the development of semiconductor diode lasers, physicists mostly
More informationUltra-stable flashlamp-pumped laser *
SLAC-PUB-10290 September 2002 Ultra-stable flashlamp-pumped laser * A. Brachmann, J. Clendenin, T.Galetto, T. Maruyama, J.Sodja, J. Turner, M. Woods Stanford Linear Accelerator Center, 2575 Sand Hill Rd.,
More informationSupplementary Information
Supplementary Information Supplementary Figure 1. Modal simulation and frequency response of a high- frequency (75- khz) MEMS. a, Modal frequency of the device was simulated using Coventorware and shows
More informationTheory and Applications of Frequency Domain Laser Ultrasonics
1st International Symposium on Laser Ultrasonics: Science, Technology and Applications July 16-18 2008, Montreal, Canada Theory and Applications of Frequency Domain Laser Ultrasonics Todd W. MURRAY 1,
More informationDue date: Feb. 12, 2014, 5:00pm 1
Quantum Mechanics I. 3 February, 014 Assignment 1: Solution 1. Prove that if a right-circularly polarized beam of light passes through a half-wave plate, the outgoing beam becomes left-circularly polarized,
More informationA novel tunable diode laser using volume holographic gratings
A novel tunable diode laser using volume holographic gratings Christophe Moser *, Lawrence Ho and Frank Havermeyer Ondax, Inc. 85 E. Duarte Road, Monrovia, CA 9116, USA ABSTRACT We have developed a self-aligned
More informationDirectly Chirped Laser Source for Chirped Pulse Amplification
Directly Chirped Laser Source for Chirped Pulse Amplification Input pulse (single frequency) AWG RF amp Output pulse (chirped) Phase modulator Normalized spectral intensity (db) 64 65 66 67 68 69 1052.4
More informationPhase-sensitive high-speed THz imaging
Phase-sensitive high-speed THz imaging Toshiaki Hattori, Keisuke Ohta, Rakchanok Rungsawang and Keiji Tukamoto Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573
More informationSingle-photon excitation of morphology dependent resonance
Single-photon excitation of morphology dependent resonance 3.1 Introduction The examination of morphology dependent resonance (MDR) has been of considerable importance to many fields in optical science.
More informationImproving the output beam quality of multimode laser resonators
Improving the output beam quality of multimode laser resonators Amiel A. Ishaaya, Vardit Eckhouse, Liran Shimshi, Nir Davidson and Asher A. Friesem Department of Physics of Complex Systems, Weizmann Institute
More informationtaccor Optional features Overview Turn-key GHz femtosecond laser
taccor Turn-key GHz femtosecond laser Self-locking and maintaining Stable and robust True hands off turn-key system Wavelength tunable Integrated pump laser Overview The taccor is a unique turn-key femtosecond
More informationInstallation and Characterization of the Advanced LIGO 200 Watt PSL
Installation and Characterization of the Advanced LIGO 200 Watt PSL Nicholas Langellier Mentor: Benno Willke Background and Motivation Albert Einstein's published his General Theory of Relativity in 1916,
More informationThe Theta Laser A Low Noise Chirped Pulse Laser. Dimitrios Mandridis
CREOL Affiliates Day 2011 The Theta Laser A Low Noise Chirped Pulse Laser Dimitrios Mandridis dmandrid@creol.ucf.edu April 29, 2011 Objective: Frequency Swept (FM) Mode-locked Laser Develop a frequency
More informationNanosecond terahertz optical parametric oscillator with a novel quasi phase matching scheme in lithium niobate
Nanosecond terahertz optical parametric oscillator with a novel quasi phase matching scheme in lithium niobate D. Molter, M. Theuer, and R. Beigang Fraunhofer Institute for Physical Measurement Techniques
More informationAn XUV Source using a Femtosecond Enhancement Cavity for Photoemission Spectroscopy
An XUV Source using a Femtosecond Enhancement Cavity for Photoemission Spectroscopy Arthur K. Mills a, Sergey Zhdanovich a, Alex Sheyerman a, Giorgio Levy a,b, Andrea Damascelli a,b, and David J. Jones
More informationSupplementary Figure 1. Effect of the spacer thickness on the resonance properties of the gold and silver metasurface layers.
Supplementary Figure 1. Effect of the spacer thickness on the resonance properties of the gold and silver metasurface layers. Finite-difference time-domain calculations of the optical transmittance through
More informationOptical design of shining light through wall experiments
Optical design of shining light through wall experiments Benno Willke Leibniz Universität Hannover (member of the ALPS collaboration) Vistas in Axion Physics: A Roadmap for Theoretical and Experimental
More informationExperimental Test of an Alignment Sensing Scheme for a Gravitational-wave Interferometer
Experimental Test of an Alignment Sensing Scheme for a Gravitational-wave Interferometer Nergis Mavalvala *, Daniel Sigg and David Shoemaker LIGO Project Department of Physics and Center for Space Research,
More informationMultiply Resonant EOM for the LIGO 40-meter Interferometer
LASER INTERFEROMETER GRAVITATIONAL WAVE OBSERVATORY - LIGO - CALIFORNIA INSTITUTE OF TECHNOLOGY MASSACHUSETTS INSTITUTE OF TECHNOLOGY LIGO-XXXXXXX-XX-X Date: 2009/09/25 Multiply Resonant EOM for the LIGO
More informationSingle-Frequency, 2-cm, Yb-Doped Silica-Fiber Laser
Single-Frequency, 2-cm, Yb-Doped Silica-Fiber Laser W. Guan and J. R. Marciante University of Rochester Laboratory for Laser Energetics The Institute of Optics Frontiers in Optics 2006 90th OSA Annual
More informationRing cavity tunable fiber laser with external transversely chirped Bragg grating
Ring cavity tunable fiber laser with external transversely chirped Bragg grating A. Ryasnyanskiy, V. Smirnov, L. Glebova, O. Mokhun, E. Rotari, A. Glebov and L. Glebov 2 OptiGrate, 562 South Econ Circle,
More informationA 243mJ, Eye-Safe, Injection-Seeded, KTA Ring- Cavity Optical Parametric Oscillator
Utah State University DigitalCommons@USU Space Dynamics Lab Publications Space Dynamics Lab 1-1-2011 A 243mJ, Eye-Safe, Injection-Seeded, KTA Ring- Cavity Optical Parametric Oscillator Robert J. Foltynowicz
More informationWave Front Detection for Virgo
Wave Front Detection for Virgo L.L.Richardson University of Arizona, Steward Observatory, 933 N. Cherry ave, Tucson Arizona 8575, USA E-mail: zimlance@email.arizona.edu Abstract. The use of phase cameras
More informationSynchronization in Chaotic Vertical-Cavity Surface-Emitting Semiconductor Lasers
Synchronization in Chaotic Vertical-Cavity Surface-Emitting Semiconductor Lasers Natsuki Fujiwara and Junji Ohtsubo Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, 432-8561 Japan
More informationECE 185 ELECTRO-OPTIC MODULATION OF LIGHT
ECE 185 ELECTRO-OPTIC MODULATION OF LIGHT I. Objective: To study the Pockels electro-optic (E-O) effect, and the property of light propagation in anisotropic medium, especially polarization-rotation effects.
More informationA Novel Multipass Optical System Oleg Matveev University of Florida, Department of Chemistry, Gainesville, Fl
A Novel Multipass Optical System Oleg Matveev University of Florida, Department of Chemistry, Gainesville, Fl BACKGROUND Multipass optical systems (MOS) are broadly used in absorption, Raman, fluorescence,
More informationOverview of enhancement cavity work at LAL
Overview of enhancement cavity work at LAL INTRO: Optical cavity developments at LAL Compton scattering Results on optical cavity in picosecond regime Polarised positron source R&D effort Developments
More informationQuantum frequency standard Priority: Filing: Grant: Publication: Description
C Quantum frequency standard Inventors: A.K.Dmitriev, M.G.Gurov, S.M.Kobtsev, A.V.Ivanenko. Priority: 2010-01-11 Filing: 2010-01-11 Grant: 2011-08-10 Publication: 2011-08-10 Description The present invention
More informationPulse breaking recovery in fiber lasers
Pulse breaking recovery in fiber lasers L. M. Zhao 1,, D. Y. Tang 1 *, H. Y. Tam 3, and C. Lu 1 School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 Department
More informationLecture 08. Fundamentals of Lidar Remote Sensing (6)
Lecture 08. Fundamentals of Lidar Remote Sensing (6) Basic Lidar Architecture Basic Lidar Architecture Configurations vs. Arrangements Transceiver with HOE A real example: STAR Na Doppler Lidar Another
More informationEfficient second-harmonic generation of CW radiation in an external optical cavity using non-linear crystal BIBO
fficient second-harmonic generation of CW radiation in an external optical cavity using non-linear crystal BIBO Sergey KOBTSV*, Alexander ZAVYALOV Novosibirsk State University, Laser Systems Laboratory,
More informationMulti-wavelength laser generation with Bismuthbased Erbium-doped fiber
Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber H. Ahmad 1, S. Shahi 1 and S. W. Harun 1,2* 1 Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia 2 Department
More informationSUPPLEMENTARY INFORMATION
Optically reconfigurable metasurfaces and photonic devices based on phase change materials S1: Schematic diagram of the experimental setup. A Ti-Sapphire femtosecond laser (Coherent Chameleon Vision S)
More informationSuppression of Rayleigh-scattering-induced noise in OEOs
Suppression of Rayleigh-scattering-induced noise in OEOs Olukayode Okusaga, 1,* James P. Cahill, 1,2 Andrew Docherty, 2 Curtis R. Menyuk, 2 Weimin Zhou, 1 and Gary M. Carter, 2 1 Sensors and Electronic
More informationCost-effective wavelength-tunable fiber laser using self-seeding Fabry-Perot laser diode
Cost-effective wavelength-tunable fiber laser using self-seeding Fabry-Perot laser diode Chien Hung Yeh, 1* Fu Yuan Shih, 2 Chia Hsuan Wang, 3 Chi Wai Chow, 3 and Sien Chi 2, 3 1 Information and Communications
More information3550 Aberdeen Ave SE, Kirtland AFB, NM 87117, USA ABSTRACT 1. INTRODUCTION
Beam Combination of Multiple Vertical External Cavity Surface Emitting Lasers via Volume Bragg Gratings Chunte A. Lu* a, William P. Roach a, Genesh Balakrishnan b, Alexander R. Albrecht b, Jerome V. Moloney
More informationDoppler-free Fourier transform spectroscopy
Doppler-free Fourier transform spectroscopy Samuel A. Meek, 1 Arthur Hipke, 1,2 Guy Guelachvili, 3 Theodor W. Hänsch 1,2 and Nathalie Picqué 1,2,3* 1. Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße
More informationSingle frequency Ti:sapphire laser with continuous frequency-tuning and low intensity noise by means of the additional intracavity nonlinear loss
Single frequency Ti:sapphire laser with continuous frequency-tuning and low intensity noise by means of the additional intracavity nonlinear loss Huadong Lu, Xuejun Sun, Meihong Wang, Jing Su, and Kunchi
More informationSilicon Photonic Device Based on Bragg Grating Waveguide
Silicon Photonic Device Based on Bragg Grating Waveguide Hwee-Gee Teo, 1 Ming-Bin Yu, 1 Guo-Qiang Lo, 1 Kazuhiro Goi, 2 Ken Sakuma, 2 Kensuke Ogawa, 2 Ning Guan, 2 and Yong-Tsong Tan 2 Silicon photonics
More information레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 )
레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 ) Contents Frequency references Frequency locking methods Basic principle of loop filter Example of lock box circuits Quantifying frequency stability Applications
More informationDifferential measurement scheme for Brillouin Optical Correlation Domain Analysis
Differential measurement scheme for Brillouin Optical Correlation Domain Analysis Ji Ho Jeong, 1,2 Kwanil Lee, 1,4 Kwang Yong Song, 3,* Je-Myung Jeong, 2 and Sang Bae Lee 1 1 Center for Opto-Electronic
More informationHigh Power and Energy Femtosecond Lasers
High Power and Energy Femtosecond Lasers PHAROS is a single-unit integrated femtosecond laser system combining millijoule pulse energies and high average powers. PHAROS features a mechanical and optical
More informationR. J. Jones College of Optical Sciences OPTI 511L Fall 2017
R. J. Jones College of Optical Sciences OPTI 511L Fall 2017 Active Modelocking of a Helium-Neon Laser The generation of short optical pulses is important for a wide variety of applications, from time-resolved
More informationLarge-mode enhancement cavities
Large-mode enhancement cavities Henning Carstens, 1,2 Simon Holzberger, 1,2 Jan Kaster, 1,2 Johannes Weitenberg, 3 Volodymyr Pervak, 2 Alexander Apolonski, 1,2 Ernst Fill, 1,2 Ferenc Krausz, 1,2 and Ioachim
More informationJ-KAREN-P Session 1, 10:00 10:
J-KAREN-P 2018 Session 1, 10:00 10:25 2018 5 8 Outline Introduction Capabilities of J-KAREN-P facility Optical architecture Status and implementation of J-KAREN-P facility Amplification performance Recompression
More informationStudy of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber
Study of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber I. H. M. Nadzar 1 and N. A.Awang 1* 1 Faculty of Science, Technology and Human Development, Universiti Tun Hussein Onn Malaysia, Johor,
More informationThe electric field for the wave sketched in Fig. 3-1 can be written as
ELECTROMAGNETIC WAVES Light consists of an electric field and a magnetic field that oscillate at very high rates, of the order of 10 14 Hz. These fields travel in wavelike fashion at very high speeds.
More informationStable dual-wavelength oscillation of an erbium-doped fiber ring laser at room temperature
Stable dual-wavelength oscillation of an erbium-doped fiber ring laser at room temperature Donghui Zhao.a, Xuewen Shu b, Wei Zhang b, Yicheng Lai a, Lin Zhang a, Ian Bennion a a Photonics Research Group,
More information1.6 Beam Wander vs. Image Jitter
8 Chapter 1 1.6 Beam Wander vs. Image Jitter It is common at this point to look at beam wander and image jitter and ask what differentiates them. Consider a cooperative optical communication system that
More informationLecture 08. Fundamentals of Lidar Remote Sensing (6)
Lecture 08. Fundamentals of Lidar Remote Sensing (6) Basic Lidar Architecture q Basic Lidar Architecture q Configurations vs. Arrangements q Transceiver with HOE q A real example: STAR Na Doppler Lidar
More informationYb-doped Mode-locked fiber laser based on NLPR Yan YOU
Yb-doped Mode-locked fiber laser based on NLPR 20120124 Yan YOU Mode locking method-nlpr Nonlinear polarization rotation(nlpr) : A power-dependent polarization change is converted into a power-dependent
More informationDispersion and Ultrashort Pulses II
Dispersion and Ultrashort Pulses II Generating negative groupdelay dispersion angular dispersion Pulse compression Prisms Gratings Chirped mirrors Chirped vs. transform-limited A transform-limited pulse:
More informationNd:YSO resonator array Transmission spectrum (a. u.) Supplementary Figure 1. An array of nano-beam resonators fabricated in Nd:YSO.
a Nd:YSO resonator array µm Transmission spectrum (a. u.) b 4 F3/2-4I9/2 25 2 5 5 875 88 λ(nm) 885 Supplementary Figure. An array of nano-beam resonators fabricated in Nd:YSO. (a) Scanning electron microscope
More informationFiber-laser-pumped Ti:sapphire laser
Fiber-laser-pumped Ti:sapphire laser G. K. Samanta, 1,* S. Chaitanya Kumar, 1 Kavita Devi, 1 and M. Ebrahim-Zadeh 1,2 1 ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels,
More informationSupplementary Figures
Supplementary Figures Supplementary Figure 1: Mach-Zehnder interferometer (MZI) phase stabilization. (a) DC output of the MZI with and without phase stabilization. (b) Performance of MZI stabilization
More informationTHE TUNABLE LASER LIGHT SOURCE C-WAVE. HÜBNER Photonics Coherence Matters.
THE TUNABLE LASER LIGHT SOURCE HÜBNER Photonics Coherence Matters. FLEXIBILITY WITH PRECISION is the tunable laser light source for continuous-wave (cw) emission in the visible and near-infrared wavelength
More informationContinuum White Light Generation. WhiteLase: High Power Ultrabroadband
Continuum White Light Generation WhiteLase: High Power Ultrabroadband Light Sources Technology Ultrafast Pulses + Fiber Laser + Non-linear PCF = Spectral broadening from 400nm to 2500nm Ultrafast Fiber
More informationLIGO-P R. High-Power Fundamental Mode Single-Frequency Laser
LIGO-P040053-00-R High-Power Fundamental Mode Single-Frequency Laser Maik Frede, Ralf Wilhelm, Dietmar Kracht, Carsten Fallnich Laser Zentrum Hannover, Hollerithallee 8, 30419 Hannover, Germany Phone:+49
More informationQuantum-Well Semiconductor Saturable Absorber Mirror
Chapter 3 Quantum-Well Semiconductor Saturable Absorber Mirror The shallow modulation depth of quantum-dot saturable absorber is unfavorable to increasing pulse energy and peak power of Q-switched laser.
More informationModule 4 : Third order nonlinear optical processes. Lecture 24 : Kerr lens modelocking: An application of self focusing
Module 4 : Third order nonlinear optical processes Lecture 24 : Kerr lens modelocking: An application of self focusing Objectives This lecture deals with the application of self focusing phenomena to ultrafast
More informationGeneration of High-order Group-velocity-locked Vector Solitons
Generation of High-order Group-velocity-locked Vector Solitons X. X. Jin, Z. C. Wu, Q. Zhang, L. Li, D. Y. Tang, D. Y. Shen, S. N. Fu, D. M. Liu, and L. M. Zhao, * Jiangsu Key Laboratory of Advanced Laser
More informationPulse Shaping Application Note
Application Note 8010 Pulse Shaping Application Note Revision 1.0 Boulder Nonlinear Systems, Inc. 450 Courtney Way Lafayette, CO 80026-8878 USA Shaping ultrafast optical pulses with liquid crystal spatial
More informationSTUDIES OF INTERACTION OF PARTIALLY COHERENT LASER RADIATION WITH PLASMA
STUDIES OF INTERACTION OF PARTIALLY COHERENT LASER RADIATION WITH PLASMA Alexander N. Starodub Deputy Director N.G.Basov Institute of Quantum Radiophysics of P.N.Lebedev Physical Institute of the RAS Leninsky
More informationRadial Polarization Converter With LC Driver USER MANUAL
ARCoptix Radial Polarization Converter With LC Driver USER MANUAL Arcoptix S.A Ch. Trois-portes 18 2000 Neuchâtel Switzerland Mail: info@arcoptix.com Tel: ++41 32 731 04 66 Principle of the radial polarization
More informationMulti-Wavelength, µm Tunable, Tandem OPO
Multi-Wavelength, 1.5-10-µm Tunable, Tandem OPO Yelena Isyanova, Alex Dergachev, David Welford, and Peter F. Moulton Q-Peak, Inc.,135 South Road, Bedford, MA 01730 isyanova@qpeak.com Introduction Abstract:
More informationLab 12 Microwave Optics.
b Lab 12 Microwave Optics. CAUTION: The output power of the microwave transmitter is well below standard safety levels. Nevertheless, do not look directly into the microwave horn at close range when the
More informationTIME-PRESERVING MONOCHROMATORS FOR ULTRASHORT EXTREME-ULTRAVIOLET PULSES
TIME-PRESERVING MONOCHROMATORS FOR ULTRASHORT EXTREME-ULTRAVIOLET PULSES Luca Poletto CNR - Institute of Photonics and Nanotechnologies Laboratory for UV and X-Ray Optical Research Padova, Italy e-mail:
More informationHigh Rep-Rate KrF Laser Development and Intense Pulse Interaction Experiments for IFE*
High Rep-Rate KrF Laser Development and Intense Pulse Interaction Experiments for IFE* Y. Owadano, E. Takahashi, I. Okuda, I. Matsushima, Y. Matsumoto, S. Kato, E. Miura and H.Yashiro 1), K. Kuwahara 2)
More informationHigh-frequency tuning of high-powered DFB MOPA system with diffraction limited power up to 1.5W
High-frequency tuning of high-powered DFB MOPA system with diffraction limited power up to 1.5W Joachim Sacher, Richard Knispel, Sandra Stry Sacher Lasertechnik GmbH, Hannah Arendt Str. 3-7, D-3537 Marburg,
More informationDispersion measurement in optical fibres over the entire spectral range from 1.1 mm to 1.7 mm
15 February 2000 Ž. Optics Communications 175 2000 209 213 www.elsevier.comrlocateroptcom Dispersion measurement in optical fibres over the entire spectral range from 1.1 mm to 1.7 mm F. Koch ), S.V. Chernikov,
More informationHigh stability multiplexed fibre interferometer and its application on absolute displacement measurement and on-line surface metrology
High stability multiplexed fibre interferometer and its application on absolute displacement measurement and on-line surface metrology Dejiao Lin, Xiangqian Jiang and Fang Xie Centre for Precision Technologies,
More informationVertical External Cavity Surface Emitting Laser
Chapter 4 Optical-pumped Vertical External Cavity Surface Emitting Laser The booming laser techniques named VECSEL combine the flexibility of semiconductor band structure and advantages of solid-state
More informationOptical phase-locked loop for coherent transmission over 500 km using heterodyne detection with fiber lasers
Optical phase-locked loop for coherent transmission over 500 km using heterodyne detection with fiber lasers Keisuke Kasai a), Jumpei Hongo, Masato Yoshida, and Masataka Nakazawa Research Institute of
More information3 General Principles of Operation of the S7500 Laser
Application Note AN-2095 Controlling the S7500 CW Tunable Laser 1 Introduction This document explains the general principles of operation of Finisar s S7500 tunable laser. It provides a high-level description
More information9. Microwaves. 9.1 Introduction. Safety consideration
MW 9. Microwaves 9.1 Introduction Electromagnetic waves with wavelengths of the order of 1 mm to 1 m, or equivalently, with frequencies from 0.3 GHz to 0.3 THz, are commonly known as microwaves, sometimes
More informationOptoelectronic Oscillator Topologies based on Resonant Tunneling Diode Fiber Optic Links
Optoelectronic Oscillator Topologies based on Resonant Tunneling Diode Fiber Optic Links Bruno Romeira* a, José M. L Figueiredo a, Kris Seunarine b, Charles N. Ironside b, a Department of Physics, CEOT,
More informationMode analysis of Oxide-Confined VCSELs using near-far field approaches
Annual report 998, Dept. of Optoelectronics, University of Ulm Mode analysis of Oxide-Confined VCSELs using near-far field approaches Safwat William Zaki Mahmoud We analyze the transverse mode structure
More informationRegenerative Amplification in Alexandrite of Pulses from Specialized Oscillators
Regenerative Amplification in Alexandrite of Pulses from Specialized Oscillators In a variety of laser sources capable of reaching high energy levels, the pulse generation and the pulse amplification are
More informationHigh resolution cavity-enhanced absorption spectroscopy with a mode comb.
CRDS User meeting Cork University, sept-2006 High resolution cavity-enhanced absorption spectroscopy with a mode comb. T. Gherman, S. Kassi, J. C. Vial, N. Sadeghi, D. Romanini Laboratoire de Spectrométrie
More informationFundamental Optics ULTRAFAST THEORY ( ) = ( ) ( q) FUNDAMENTAL OPTICS. q q = ( A150 Ultrafast Theory
ULTRAFAST THEORY The distinguishing aspect of femtosecond laser optics design is the need to control the phase characteristic of the optical system over the requisite wide pulse bandwidth. CVI Laser Optics
More information