Laser Diode Collimator 48TE-SOT-...

Transcription

1 LD-ollimator-8TE_FiberOpt.indd Page 7 Laser Diode ollimator 8TE-SOT-... with polarization-maintaining singlemode fiber, Peltier element / thermosensor and Faraday Isolator 0 Wavelength range nm Integrated Peltier element and temperature sensor for thermoelectric temperature control of the laser diode Faraday Isolator 8FI--... For encased laser diodes of Ø.6 mm and Ø 9 mm, optionally TO and TOW pplicable for DR laser diodes Universal modular system of laser diode collimators, designed for easy customer assembly and adjustment 9 Faraday isolators are used to protect laser sources from back-reflection (acting as an optical diode). Radiation coupled back into a laser diode leads to mode hopping, noise, frequency instability and decreases lifetime. Spectrum of an undisturbed laser beam source Disturbed spectrum because of back-reflections (mode hopping) Laser eam oupler for Singlemode Fiber inclined fiber coupling axis 8 7 TILT 6 Laser diode module 8TE-SOT-... with integrated Peltier elements and temperature sensor for thermo-electric control ollimating lens Mounting bracket, microbench compatibility Faraday Isolator namorphic beam-shaping optics 6 Mechanical shutter or attenuator 7 Laser beam coupler for singlemode fiber 8 Polarization-maintaining singlemode fiber 9 Fiber collimator with F connection 0 Micro focus optics Optical Power Output Wavelength Dependency PM: OW-TIE PM: PND PM: OVL- INNER LD For a detailed description of the modular laser diode beam source 8TE-SOT-... see download: oth the temperature and power influence the emitted wavelength of laser diodes. The wavelength center is shifted by nm/k of temperature and either the modes hop, one-byone, or many modes may be excited simultaneously. The wavelength center can drift by. nm at 0 0. onversely, when the laser power is increased from a threshold up to the nominal power, the wavelength is increased by nm. For constant laser power, the thermo -electric temperature control maintains the laser at a constant temperature and wavelength. Peltier elements establish a temperature gradient, which in magnitude and direction is regulated by the Peltier current obtained from the measured signal of the temperature sensor. 7 Po=0mW Po=0mW Po=mW nm Wavelength vs. Temperature Wavelength p [nm] asing temperature T [ ] Laser diodes 70 00nm Encased Ø.6 mm and Ø 9 mm Laser diode mod. 8TE-SOT Laser diodes with inte gra ted TE-ooler Laser diode ase TO Laser diode mod. 8-O-TO Laser diode Superlum ase TOW Laser diode mod. 8-O-TOW Laser Diode ollimator 8TE-SOT-... The 8TE-SOT-... consists of three basic elements: Laser diode module 8TE-SOT with: integrated Peltier element temperature control for laser diodes with diameter.6 and 9 mm easy to handle X/Y adjustment (see next page) solderless contacts optional fan 8L ollimation flange 8FS for system mount Ø 9. mm collimator adjustment with indirect clamping, even with adapters Diode collimator 60L-... focal length f' from.7 mm to 8 mm (up to 60 mm with collimator 0L-...) N up to 0. spectral range nm For more information, see: Faraday Isolator (optical diode) 8FI--... For assembly in microbench systems, high precision through-holes for parallel rod guides ensure high mechanical stability and distortion resistance of the whole system: isolation >0 d laser beam aperture max. mm attenuation <0. d standard wavelengths nm See page 7 namorphic eam-shaping Optics N-... ombination of cylinder lenses with integrated astigmatic correction. focal (i.e., non- focussing) beam-shaping op tics to transform the ellip tical beam profile of the collimated laser diode in to a nearly circular profile: laser beam aperture max. 6 mm See page 9 beam-shaping factor,., and 6 Mechanical Shutter 8T-... To block the laser beam manually for system mount Ø 9. mm See page 6 aperture Ø mm 7 Laser eam oupler 60SMS-... djustable and focussable for singlemode fiber cable with F connector Inclined (8 -polish, F-P) or paraxial fiber-coupling axis focal length f' from mm to 8 mm N up to 0.68 From page 9 spectral range nm 8 Polarization-maintaining and Singlemode Fiber ables PM-... / SM-... Singlemode, polarization-maintaining MFD 0 μm = nm Fiber connectors: F-P: 8 -po lish of the fiber ferrule, for supression of back- reflection into the laser source F-P: 0 -polish From page 0 Fiber ollimators 60F-... and Micro Focus Optics M Fiber ollimator 60F- focussable, inclined or paraxial fiber coupling axis. oth beam diameter and divergence are determined by the focal length f of the collimating lens: focal length f' from.7 mm to 00 mm N up to 0.68 spectral range nm pilot beam option From page 0 Micro focus optics, Series M- and M- The lens attachments for fiber collimators 60F-... focus the collimated laser beam onto a diffraction- limited area (0.6 μm) Order Options Laser diode beam sources are delivered fully assembled and adjusted, using laser diodes from our own stock or supplied by the client, according to customer specifications. Detailed instructions for assembly and adjustment by the user are included E Kieler Str., Hamburg, Germany Tel: Fax: info@sukhamburg.de 7

2 Laser Diode ollimator 8TE-SOT-... I III djustment with mounted collimator II Laser Diode Module 8TE-SOT Main specifications: X/Y-centering of the laser diode onto the optical axis with adjustment tool 8D Solderless contact using spring-contact connectors ensures laser diode is galvanically isolated from collimator module Integrated Peltier element and temperature sensor for thermoelectric closed-loop control of the laser diode temperature Peltier element provides up to W of heat transfer power I max. =., U max. =.8 V Temperature sensor: thermistor (NT 0 k) Separate connection cables for power supply, for the monitoring of the laser diode and temperature control Modular fan 8L for increased thermal transfer efficiency ( V D, 0. power supply is not designed for use with vibration-sensitive applications) ompatible with microbench (0 mm pitch) The components are adjusted and fixed using radially located grub screws for positive locking n elastomere diaphragm encloses the laser diode and prevents both laser beam egress and dust ingress 60L 8FS Table eam parameters ollimation Lens 0L-... / 60L-... row curr. no ollimation lens ollimator flange 60L 8FS 0L 8FL Lens type G.7,. T M T TF M M60 Focal length f' Numerical aperture N lear aperture [mm] Max. active area [mm] Lens for UHV application x x x x x x x x x Spectral range ode no. of R coating nm nm nm nm 60-0 nm nm nm nm nm nm nm Ø eam parameters for the collimated laser beam using a 670 nm laser diode with active area 0. x μm and beam divergence 0 x 0 (FWHM), beam-ø /e² (.%). # beam cross-section restricted by lens aperture. 8 eam-ø [mm] #7 9 eam-ø [mm] #. #.0 #.8 # #. #7 0 Divergence [mrad] Divergence [mrad] eam parameters for the collimated laser beam using a 6 nm Ø irculaser diode with beam divergence 8 x 8 (FWHM) eam-ø /e² (.%) [mm] Divergence [mrad] Ø Order Options The 8TE-SOT-... laser diode collimator is supplied as a completely adjusted system consisting of laser diode module 8TE-SOT, with integrated Peltier element, diode collimator 60L-...(0L-...), Faraday Isolator 8FI--..., anamorphic optics N-..., shutter 8T- S, laser beam coupler with F-P connector 60SMS-..., PM fiber or singlemode fiber cable PM-.../ SM-... and fiber collimator 60F. On ordering, please specify: Laser Diode wavelength, module type and output power Fiber able length and type Fiber ollimator focus size or collimation diameter Fan module option: with or without Please contact Schäfter+Kirchhoff for details of suitable laser diode beam sources or for laser diode collimators with other specifications. x/y-entering of the Laser Diode Module djustment fixture Order ode 8D For optimum collimation of the laser beam free of aberration (e.g. coma), it is necessary to launch the emission center onto the optical axis of the collimator optics. With the tripartite X/Y-centering fixture 8D, the mounting plate of the laser diode can be adjusted laterally (for details, see assembly instructions). Lateral displacement is performed using screws and, while screw provides the necessary counteractive force. dapters for Laser Diodes Ø.6 mm pplication: Laser diodes of Ø.6 mm size can be inserted into the slot for a Ø 9 mm laser diode without altering the active area nor position: the laser diode beam axis and the position of the emitter are unchanged. dapter Order ode 0L-.6 parts: outer casing Ø 9 mm and Retaining ring for laser diode Laser diode with housing Ø.6 mm D ssembly key Order ode 0LD.6 D ollimator flange 8FS Internal lens focussing: a left or right turn with the eccentric key I provides fine adjustment of the collimation lenses and, so, of the focus position and collimation, even with attached adapters. Lens locking II System mount Ø 9. mm for attachment of further beam-shaping optics and adapters. The adapters have a tightly fitting cylinder with circular V-groove for fitting into the collimator flange. The adapters can be rotated and are locked by circumferential grub screws III. ssembly and djustment Tools Screwdriver Order ode 8SD-00 Hex screwdriver SW Ø., mm Order ode 0HD- Hex screwdriver SW Ø., mm for adjustment fixture 8D Order ode 0HD- Eccentric key for collimation lenses 60L-... Order ode 60EX- Focussing key for collimation lenses 0L-... Order ode 0LF-0 LD-ollimator-8TE_FiberOpt.indd Page E Kieler Str., Hamburg, Germany Tel: Fax: info@sukhamburg.de

3 FULL POWER 0 0 nm P X Laser diode beam source 8FM- Singlemode fiber cable with F-P connector Key switch: ON/OFF - LED ON Potentiometer (reduction of laser output power) able for power supply X onnector, ext. modulation and interlock Laser Diode eam Source 8FM- Fiber-coupled, singlemode and polarization-maintaining with F-P connector Rotationally symmetric beam profile with Gaussian intensity distribution P Singlemode fiber cable or polarization-maintaining singlemode fiber cable (polarization extinction ratio > d) Spectral range 0 nm to 0 nm Laser output power up to 70 mw Fiber cable with strain-relief and protective sleeving (Ø mm) F-P connector (8 -polish) reducing power noise caused by back-reflection into the laser Output power adjustable using potentiometer or external voltage control input (0. V) ND-wired modulation inputs, analog and TTL, fmax = 00 khz Operation mode: constant power (standard) and constant current Laser safety specification according IE 8 / EN 608 from: Key switch and LED-indicator for laser operation interlock connection X Options: To fullfill lower laser safety requirements (e.g. laser class ), the laser source can be delivered with reduced maximum output power Supply voltage V (standard) or V (exception: Table 6, row is available with V supply voltage only), reverse voltage protection Protective cap to prevent damage to the potentiometer Related products Laser diode beam source FM: Version without key switch nor interlock (for OEM purposes only) Laser diode beam source nanofm: Low Noise version with reduced coherence length and speckle contrast Laser diode beam source nanofi: Low Noise version with integrated Faraday Isolator (reduced coherence length and speckle contrast) ccessories onnectors Lumberg connector (female) according IE Order ode 0 06 F Type KV 60 (6-pin) for connection to interlock chain and for ext. modulation Order ode 0 0 F Type KV 0 (-pin) for V power supply Order ode 0 0 F Type KV 0 (-pin) for V power supply Power Supplies for 8FM Power supply for laser diode beam sources, elec trically isolated,. m cable with connector (IE600-9) Lumberg series KV (female). Input 00-0 V Output with connector V D/ 00F V D/0. 00F Order ode PS000E PS06E onnector (fem.) -pin KV0 for V (pin comp. to SV0) or -pin KV0 for V D version Power cord for Power Supplies. m, IE0 female -pin plug, 0, 0 V IE-connector (IE-600) with country-specific male -pin plug ountry Europe US/anada Great ritain Order ode P0DE P0US P0 UK DE US UK Electrical Data Electronics Type P Supply voltage standard V D (±0. V) optional V D (±0. V) Laser diode operation mode constant power optional constant current Max. operating current 0 m mbient temperature range Modulation frequency analog 00 khz 0 Hz TTL 00 khz 0 khz Laser power output potentiometer < 00% < 00% TTL modulation logic Laser ON TTL high nalog control voltage Pmin to Pmax 0. V Timing Diagram Table 6 Laser Diode eam Source nanofm... Row Wavelength Laser LD Electr. Fiber Fiber ur. Type P out * Supply Electronics Type type Fiber diode operation connection option (cm) (μm) connec. length MFD *** No. (nm) (mw) power (V) code mode ** 8FM 0 0 M9 P/ / P FM 6 H0 P/ / FM 67 H0 P/ / FM 60 H P/ / FM 660 M0 P/ / FM 660 M6 P/ / FM M P/ / P FM 67 H0 P/ / FM 68 H P/ / FM 78 /9 H06 P/ / FM 80 8 H9 P/ / FM W P/ / FM EY0 P/ / FM 0. M06 P/ / FM 0 M P/ / FM H0 - P Order ode Laser diode beam source (see Table 6) Laser diode operation mode: constant power (standard)...p constant current... Supply voltage: V D (standard)... V D... Electronics Type (see Table 6): The electronics type depends on the laser diode. Details about types and P are found in table of electrical data, see left. Electrical cable. m shielded x 0. mm... as for, with connector SV0 ( V)... as for, with connector SV0 ( V)... cable length specified by customer... * Typical laser output power. For the lower of two specified power outputs, the housing length L = 6 mm (standard). For the higher power value, the housing length L = 66 mm, see dimensions below. ** onstant power: n internal control-loop maintains constant laser power. dvantage: compensates for temperature variations or ageing of laser diode. *** With effective fiber Ne 0.07 Fiber length in cm, standard onnector option: 0 = standard = core centered <0. μm (singlemode only) Fiber type: 0 = singlemode fiber cable, F-P connector (0 -polish) 8 = singlemode fiber cable, F-P connector (8 -polish) 0 = PM singlemode fiber cable, F-P connector (0 -polish) 8 = PM singlemode fiber cable, F-P connector (8 -polish) onnector type ST, DIN-vio, and E-000 on request onstant current: The internal control-loop maintains constant laser current. The power output depends on temperature. dvantage: reduced laser noise. Modulation: The laser has two ND-wired modulation input channels, Uanalog and UTTL. The laser is OFF when the modulation input is open. The laser can be modulated digitally. If only one modulation input is used then the other has to be set to +V (see timing diagram). The voltage Uanalog at analog modulation input linearly Umod digital 0V,V Umod analog 0V 00% Laser P/Pout 0% controls laser output power between % and 00% of the optical power set by the potentiometer. Dimensions Laser Diode eam Source 8FM- onnector Lumberg able for power supply 8 0 SV0 ( V) SV0 ( V) X F connector Singlemode fiber cable Ø mm Potentiometer M x M6 6/(66) * x / 6 X Potentiometer 8FM_E_-0.indd Page E Kieler Str., Hamburg, Germany Tel: Fax: info@sukhamburg.de

4 HeNe Laser with Fiber Optics Singlemode and polarization-maintaining olor Green Yellow Red Wavelength [nm] Output Power ex Fiber [mw] Freq-stabilized yes Picture E GREEN. nm D pplication Interferometry YELLOW 9. nm 6.8 nm 6.8 nm Universal eam Source for Interferometry and Frequency Standards The Schäfter+Kirchhoff HeNe lasers and fiber optics are polarizationmain taining and provide a high coupling effi ciency with extremely resilient transport capabilities. large selection of coupling lenses is provided that match the different laser beam diame ters with the particular PM fiber chosen for use. oth ends of the singlemode fibers have 8 -polish (connectors Type F-P) in order to minimize laser back-reflection and power noise effectively. oupling efficiency >7%, typically 80% Polarization extinction ratio > d Fiber cable MFD =.8 μm, Ne = 0.07 F-P type connector for coupler and fiber end (others available on request) Fiber-coupling solutions for HeNe lasers supplied by the customer Mechanical shutter or attenuator locked by a grub screw, for release by a special tool to ensure laser safety Electromagnetic shutter for all HeNe laser types Mounting brackets for strainless mounting, with shock absorbers to avoid vibration, shocks and thermal deformation: highly suitable for industrial environments Standard and customized power supplies For more information and technical drawings of the laser sources, please contact Schäfter+Kirchhoff or download product information from Green HeNe Laser HeNe P - LGP Wavelength. nm Output power >0.7 mw ex fiber Yellow HeNe Laser HeNe P - LYP Wavelength 9. nm Output power >0.7 mw ex fiber HeNe Wavelength 6.8 nm Output power >0. mw to > mw ex fiber HeNe P - MG Wavelength 6.8 nm Output power >8 mw ex fiber HeNe P - REO Frequency-stabilized Wavelength 6.8 nm Output power >0.8 mw ex fiber Overall length of system approximately 0 mm Faraday Isolator for frequency-stabilized fiber coupling 6 86 nm Frequency-stabilized G HeNeLaser_FiberOpt.indd Page 8 H I F F 6.8 nm 6.8 nm 6.86 nm Frequency-stabilized Options ll HeNe laser sources can be combined with following options: dapter flange 609.-F, standard adapter Mechanical attenuator 609.-F-T dapter flange with integrated shutter 609.-F-S D Vibration-absorbing mounting bracket M-MG-.-R E Mounting bracket with integrated flange for fiber coupling (increased long-term stability) M-MG-.-F-R, standard mount F Mounting bracket with integrated flange for fiber coupling (increased long-term stability) and with steel shock absorbers M-MG-.-F-S G Electromagnetic bistable shutter EMS--0 For more information on the shutter EMS--0, see page 6 H Faraday Isolator 8FI--..., see page 7 I Mechanical attenuator 8T-, see page 6 Fiber-optics ccessories Fiber ollimators 60F-... Micro focus optic M-... Page f Vacuum Feed-throughs V-... Page Fiber-optic eam Splitters FS-... Page 0-07 E Kieler Str., Hamburg, Germany Tel: Fax: info@sukhamburg.de 8

5 Fiber-coupled HeNe lasers: 6,, 9 and nm Output power: mw ex fiber Table. HeNe Laser olumn No. Wavelength [nm] HeNe P - LHP Wavelength [nm] Optical power ex fiber [mw] Polarization: linear (standard)....p random (option)... R Laser type Supply voltage: 0 V (standard)... 0 V... V D... 0/0V (Laser no. 9 only).. add. Faraday Isolator **... FI Fiber length [cm] onnector option: 0 = standard = core centered (singlemode only) Fiber / connector type: 8 = singlemode fiber cable, F-P conn. (8 -polish) 8 = PM singlemode fiber cable, F-P connector (8 -polish), standard onnector type ST, DIN-vio, and E-000 on request 67 Power ex fiber [mw] Polarization Laser Type Laser Power [mw] Supply Voltage Shutter/ ttenuator Fiber Type Fiber onnector Option Fiber Length [cm] Laser Shutter * Laser Diameter [mm] Length [mm] Laser lass Power Supply Style Fiber able Ne (/e²) MFD (/e²) [μm] Red HeNe 6 0. P LHP X HeNe 6. P LHP X HeNe 6. P LHP X HeNe 6 7 P LHP X HeNe 6 P LHP X HeNe 6 8 P LHP X rect Green 7 HeNe 0.7 P LGP X Yellow 8 HeNe P LYP X Red (frequency-stabilized) ** Faraday Isolator required, add FI to Order ode 9 HeNe P REO X Shutter/ttenuator mechanical shutter *...S mechanical attenuator.... w/o Using fiber connectors of type F-P with 0 -polish, even for cable output, produces back-reflections into the laser, resulting in the noisy operation of the HeNe laser. Order ode * dapters for laser beam couplers 60SMS- Schäfter+Kirchhoff offers different adapters for attaching the laser beam couplers 60SMS-... to a HeNe laser with a standard fitting x -0, ". Mounting set with screws and washers Order ode 609.-F-MS 6. 7 M 0 7 Ø.8 Ø.8 Ø9.. Ø9.. Ø9.. Ø.8 dapter flange Order ode 609.-F dapter flange with attenuator Order ode 609.-F-T dapter flange with integrated shutter Order ode 609.-F-S When the laser has its own shutter, see Table, column, an external shutter is not required. Mounting rackets and ccessories Mounting racket M-MG-.-R for lasers with diameter. mm /.7'' (set of two). Elastomer shock absorbers are used for dampening of shock, vibrations and avoidance of thermal defor mations. The adapter 609.-F, 609.-F-T, or 609.-F-S is attached to the front plate of the laser. Mounting racket M-MG-.-F-S for lasers with diameter. mm /.7'' (set of two). Wire-spring shock absorbers for improved dampening of shock, vibrations and avoidance of ther mal defor mations in all xyzdirections. For optimum sta bility, the bracket M-MG-.-F-S holds both laser and adapter. Mounting racket M-MG-.- F-R for HeNe lasers with diameter. mm/.7'' (set of two). Elastomer shock absorbers for dampening of shock, vibrations and avoidance of thermal deformations. For optimum stability, the mounting bracket M-MG-.-F-R holds both laser and adapter. Electromagnetic Shutter EMS-- 0 and shutter controller SK970. For more information, see page 6. Faraday Isolator 8FI--... ** See page 7 for more information Dimensions of Power Supplies ccessories ouplers and ollimators The HeNe lasers from Schäfter+Kirchhoff are shipped with power supplies. Mounting set: Laser beam couplers Desktop power supplies are available for 0 V and 0 V line voltage. OEM 60SMS-... Socket head screws see page 9 power supplies can often be provided for HeNe lasers upon request, including (similar to DIN9) V D or 0/00 V. -0 UN x /8'', set of pcs. Style with washer and hex key / 0 60 HV connect. Remote/interlock Order ode 609.-F-MS Style 9 6 Style 6 6 HV connect. Main power HV connect. Remote/interlock Fiber collimators 60F-L... see page 6 Fiber collimators 60F-... see page HeNeLaser_FiberOpt.indd Page E Kieler Str., Hamburg, Germany Tel: Fax: info@sukhamburg.de