269-2 AGERE | Alldatasheet
Document overview
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Technical content
Features
■ Low relative intensity noise (RIN) ■ High-coupled rated output power up to 280 mW, CW ■ Wide environmental range ■ Field-proven packaging technology ■ InGaAsP/InP high-power, strained multiple quan- tum-well (MQW), distributed-feedback (DFB) laser chip design ■ Internal optical isolator (optional) ■ Internal thermoelectric cooler (TEC) ■ InGaAs PIN photodetector back-facet monitor ■ Single-mode and polarization-maintaining fiber pig- tails ■ Compact, 14-pin butterfly package ■ Industry compatible package and pinout
Applications
■ Raman pump modules (RPM), copropagating and counterpropagating ■ Erbium-doped fiber amplifiers (EDFA)
Description
The 269-type DFB pump laser module represents a family of thermoelectrically cooled, high-power lasers. These devices achieve stable wavelength performance within the 1420 nm to 1510 nm range, over the full operating temperature range. They are designed as continuous-wave (CW) optical pump sources for dense wavelength-division multiplexing (DWDM) EDFA and Raman applications operating in the C- and L-bands. These new high-power DFB products represent a breakthrough in 14xx nm pump laser technology by integrating the beneficial characteristics of an exter- nal FBG laser design (such as stimulated Brillouin scattering suppression) with the superior relative- intensity noise (RIN) performance of a DFB laser. The combination of both characteristics is critical to enable copropagating Raman pumping, which dis- tributes gain over the first few kilometers of the trans- mission fiber. The typical RIN value Agere Systems’ DFB lasers is –158 dB/Hz, a major improvement over comparable external FBG-stabilized lasers with a typical RIN of –125 dB/Hz. Integrating wavelength stabilization into the chip improves the stabilization over operating temperature and thereby eliminates the need for an external FBG . The laser modules incorporate a high-power, quan- tum-well laser chip that achieves fiber powers up to 280 mW. An integral thermoelectric cooler (TEC) stabilizes the laser at room temperature and, combined with a her- metic environment, allows the device to achieve high-power operation over the extended temperature range of 0 °C to 75 °C. An internal InGaAs PIN pho- todiode, mounted behind the laser diode, functions as the laser detector and monitors light emissions from the rear facet of the laser. The 269-type DFB module is offered in a 14-pin, her- metic butterfly package.
269-Type 14xx nm DFB Pump Laser Module June 2001 2 Agere Systems Inc. Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso- lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.Handling Precautions Electrostatic Discharge CAUTION: This device is susceptible to damage as a result of electrostatic discharge (ESD). Take proper precautions during both handling and testing. Follow guidelines such as EIA * Standard EIA 625. Agere Systems Inc. employs a human-body model (HBM) for ESD-susceptibility testing and protection-design eval- uation. ESD voltage thresholds are dependent on the critical parameters used to define the model. A standard HBM (resistance = 1.5 kΩ , capacitance = 100 pF) is widely used and, therefore, can be used for comparison pur- poses. The HBM ESD withstand voltage established for the 269-type laser pump module is ±500 V . * EIA is a registered trademark of The Electronic Industries Association. Parameter Symbol Min Max Unit Operating Case T emperature Range T C 07 5 ° C Storage Case Temperature Range T stg –40 85 °C Laser Forward Bias (TEC on): PO = 120 mW—150 mW PO = 160 mW—210 mW PO = 220 mW—280 mW IF 1000 1500 1900 mA mA mA Laser Reverse Voltage V R —2V Photodiode Reverse Voltage V RMON —2 0V TEC Current I TEC —2 . 2A TEC Voltage V TEC —5 . 0V T emperature Sensor Current I TS —5 m A Laser Diode Operating Chip T emperature T LD —4 0 ° C
Table 1. Electrical/Optical Characteristics (All performance parameters are specified for IF , OP, TSET = 25 °C, Table 2. Monitor Photodiode Characteristics (All test parameters are specified for IF, O P, TSET = 25 °C,
Table 3. TEC and Thermistor Characteristics (All performance parameters are specified for IF, O P, TSET = 25 °C,
- A positive input into this pin cools the laser.
Table 4. Pin Information
1 TE Cooler (+)*
2 Thermistor
3 Monitor Anode (–Bias)
4 Monitor Cathode (+Bias)
5 Thermistor
6 No Connect
7 No Connect
8 No Connect
9 No Connect
10 Laser Anode (+)
11 Laser Cathode (–)
12 No Connect
14 TEC Cooler (–)
a result of electrostatic discharge. during both handling and testing. thermal filler may be necessary. The minimum fiber bend radius is 1.0 in.
- Place the bottom flange of the module on a flat heat
- Mount four #2-56 screws with Fillister heads
than 1 in./lb. of torque to the screws. Figure 1. Circuit Schematic
269-Type 14xx nm DFB Pump Laser Module June 2001 6 Agere Systems Inc. Outline Diagram Dimensions are in inches and (millimeters). 1-1065 (F)a 0.10 (0.25) 0.035 (0.91) 0.078 (1.98) 0.213 (5.40) TYP. 0.350 (8.89) 0.500 (12.70) 0.598 (15.19) MAX. 1.025 (26.04) 0.020 (0.51) 0.100 (2.54) TYP. TYP. PIN 1 0.105 (2.667) DIA. TYP. (4) PLACES PIN 14 0.030 (0.76) 0.700 (17.78) 0.347 (8.8) 0.820 (20.83) 0.180 (4.57) 0.175 (4.45) 0.215 (5.46) 1.180 (29.97) 0.078 (1.99) 0.178 (4.52) 0.215 ± 0.10 (5.46 ± 2.54) 0.363 (9.23) 0.334 ± 0.005 (8.49 ± 0.005)
June 2001 269-Type 14xx nm DFB Pump Laser Module 7Agere Systems Inc. Laser Safety Information Class IIIb Laser Product FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser Safety requirements. All versions are Class IIIb laser products per IEC * 60825-1:1993. The device has been classified with the FDA under accession number 8720010. This product complies with 21 CFR 1040.10 and 1040.11. 8.8 µm/125 µm single-mode fiber pigtail (see Fiber Characteristics, page 5). Wavelength = 1.40 µm—1.52 µm. Maximum power = 400 mW. Because of size constraints, laser safety labeling (including an FDA Class IIIb label) is not affixed to the module but attached to the outside of the shipping carton. Product is not shipped with power supply. Caution: Use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure. * IEC is a registered trademark of The International Electrotechnical Commission. DANGER INVISIBLE LASER RADIATION IS EMITTED FROM THE END OF FIBER OR CONNECTOR Avoid direct exposure to beam Do not view beam directly with optical instruments INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR Avoid exposure to beam Class 3B Laser Product IEC-60825M 1993 Max. Output: 400 mW Wavelength: 1.40 µm — 1.52 µm
269-Type 14xx nm DFB Pump Laser Module June 2001 For additional information, contact your Agere Systems Account Manager or the following: IN TERNE T: http://www .agere.com E-M AIL: docm aster@mi cro.lucent.com N. AM ERICA : Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In C AN ADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC : Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHIN A: Agere Systems (Shanghai) C o., Ltd., 33/F Jin Mao Towe r, 88 Century Boulevard Pudong, Shanghai 200121 PRC Tel. (86) 21 50471212, FAX (86) 21 50472266 JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagaw a-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EU R OPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECT R ONICS M ARK ETING: (44) 1344 865 900 (Ascot UK) Agere Systems Inc. reserves the right to m ake changes to the product(s) or information contained herein without notice. No liability is assume d as a result of their use or application. Co pyright © 2001 Agere System s Inc. All Rights Reserved June 2001 DS01 -237OPTO O rdering Information D evice Code Information ORDER CODE : X X269 – – XX – X – XXXX – BASIC PAR T NUM BER FIBER A = NONISOL ATE D, SMF CONNEC TOR OPT IONS A = NO CONNE C TOR B = NONISOL ATE D, PMF B = SC/APC C = FC/APC W AVELEN G TH XX XX nm C = ISO LATED, SM F D = ISO LATED, PM F O PER ATING PO WER XX0 m W O PER ATING MODE D = DF B, SIN GLE MODE M = DF B, MULTIM ODE