HIGH BANDWIDTH DFB LASERS

Transcription

1 HIGH BANDWIDTH DFB LASERS 7-pin k-package AA71 SERIES The AA71 distributed feedback laser (DFB) is an InGaAsP/InP multi-quantum well laser diode. The module is ideal in applications where high bandwidth, mode stability, low relative intensity noise (RIN) and stable output power are needed. AA71 contains a thermo-electric cooler, thermistor, back facet monitor detector, and bias tee. The module is designed and built using Gooch & Housego s high-reliability platform for defense components. Key Characteristics C-band ( nm) and 131 nm wavelengths 1 or 18 mw ex-fiber output power options Features 1 or 18 mw output power High bandwidth Built in isolator Ultrafast pulsing capability Laser welded, hermetically sealed Built in TEC, thermistor, and monitor detector Rugged to shock and vibration Applications Analog RF links High speed pulsing HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 1

2 Performance Characteristics T C =25 C, continuous wave and beginning of life unless otherwise specified Optical characteristics Sym Condition Min Typ Max Unit Operating chip temperature T CHIP C Center wavelength λ 131 nm model nm c-band models -1-1 nm Output power P op 131 nm model 18 mw c-band models 1 mw Linewidth ν Source dependent 1 MHz Relative intensity noise RIN P=P op,.2-3. GHz -15 dbc/hz Side mode suppression SMSR P=P op 3 db Optical isolation 1 ISO F opt within C-band 3 35 db Polarization extinction ratio PER db Tracking error λ / T P = P op db Electrical characteristics Sym Condition Min Typ Max Unit Threshold current I TH 8 2 ma Laser drive current 2 I op 75 1 ma Laser forward voltage V F I=I op, max V Monitor photo diode current I PD P=P OP 5 µa Monitor photo diode dark current I D 1 na Modulation bandwidth F 3dB from low frequency avg 1 GHz Electrical back reflection S 11-1 db Modulation input matching Z IN 5 Ω TEC current T amb =25 C for typ T amb =7 C.1 2. A TEC voltage for max P=P op, T CHIP =25 C V Thermistor resistance R TH T = 25 C Ω Thermistor β coefficient β / 5 C 3892 Thermistor Steinhart-Hart coefficients A = e -3 B = e -4 C = e -8 1 Reference model number AA72 for units without internal isolator. SMSR not specified for this model. HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 2

3 Data Tables Typical output power and back facet monitor current vs input current (155nm) Output Power [mw] Power[mW].4 IPD[µA] Back Facet Monitor Current [ua] Laser Diode Current [ma] Typical output power and back facet monitor current vs input current (131nm) Output Power [mw] Power BFM Back Facet Montior Current [ua] Laser Diode Current [ma] Typical TEC performance T chip =25 C TEC Current [ma] TEC Current[mA] TEC Voltage[V] TEC Voltage [V] Laser Diode Current [ma] HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 3

4 Data Tables, Continued Typical RIN (Relative Intensity Noise) S11 & S21 Fiber Characteristics Fiber type Core diameter Outer diameter Buffer diameter 4 Buffer material 4 Minimum length Minimum bend radius Output polarization Connector 5 Single-mode, PM or non-pm 8 μm 125 μm 25 μm Acrylate 1 m 35 mm Parallel to slow axis FC/APC 4 5 Optional 9 μm loose-tube PVDF buffer recommended for laboratory use. Other connector options available, contact sales for more information. HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 4

5 Pinout and Mechanical Drawing Pin Description 1 Thermistor 2 Thermistor 3 Laser cathode (Bias) 4 Monitor PD anode 5 Monitor PD cathode 6 TEC+ 7 TEC- Pkg/ Shield K Laser anode RF Input Absolute Maximum Ratings Sym Min Max Unit Storage temperature T STG C Operating case temperature T OP C Laser forward current I F 12 ma Laser reverse voltage V R 2 V Photo diode photo current I PD 1 ma Photo diode reverse voltage V PD 2 V TEC current I TEC 3 A TEC voltage V TEC 4 V Thermistor current 2 ma Thermistor voltage 5 V Lead soldering time 1 S Lead soldering temperature 25 C RF input power 2 dbm * Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at or beyond these conditions is not implied. Exposure to absolute maximum ratings for extended periods of time may affect device reliability. HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 5

6 Ordering Information Example part number: AA SM9-FCA A A F C A Model Standard (with internal isolator) Without Internal Isolator 1 Code Wavelength 131nm C-band options Code XXXXXX (see chart below) 3 Power 1 mw 18 mw Code 1 (for c-band lasers) 18 (for 131 nm lasers) 4 Fiber SM fiber, 9 um loose buffer PM fiber, 9 um tight buffer PM fiber, 9 um loose buffer Code SM9 PM25 PM9 5 Connector 2 FC/APC 2 Code 6 Bias T 5 Ω Code 5 SMSR not specified for lasers without isolators. Other connector options available, contact sales for more information. Available C-band channel frequencies (wavelengths) Standard center C-band option in bold. Frequency Wavelength Frequency Wavelength Frequency Wavelength THz nm THz nm THz nm THz nm THz nm 193. THz nm THz nm THz nm THz nm 196. THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm 194. THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm 192. THz nm THz nm THz nm THz nm 195. THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm THz nm FCA For further information T: E: bostonsales@goochandhousego.com goochandhousego.com HIGH BANDWIDTH DFB LASERS AA71 SERIES Data sheet ref: DS-738 / Revision No. 5 August 216 As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. Page 6