Preliminary Data Sheet April 1999 980-Type UltrahighReliability Pump Laser Module Applications ■ Undersea optical transmission systems ■ Ultrahigh reliability optical communications for military systems Description The 980-Type Pump Laser Module is a precision, high-performance, ultrahigh-reliability lightwave component that provides high output power light, in the 980 nm range. The 980-Type Pump Laser Module is comprised of a single-mode laser diode, PIN backfacet monitor, microlensed single-mode fiber, and a Fiber Bragg Grating (FBG) for improved stability, all encased in a specially designed 14-pin, oxygen free, butterfly package. The 980-Type Ultrahigh-Reliability Pump Laser Module is ideally suited for fiber amplifier-based optical transmission systems that require a long-term life expectancy. Features ■ Extremely high reliability — Laser-welded packaging technology used to attain ultrastable long-term operation — 29-year life ■ Planar InGaAs PIN photodiode monitor for laser back-facet output ■ Wide range of stable CW optical output power ■ Individually certified for ultrahigh reliability ■ InGaAs ridge waveguide 980 nm single-mode laser diode ■ Standard low-profile, laser-welded, metal, hermetic, 14-pin butterfly package ■ Single-mode fiber with Bragg Grating (FBG) for stable operation ■ Stable single spatial mode kink-free operation over a wide range of temperatures and currents The 980-Type Pump Laser Module is capable of providing a wide range of output power in the 974 nm to 984 nm wavelength range for erbiumdoped amplifier (EDFA) system application. The pump laser module is designed and individually certified for high-reliability operation and long-term life expectancy. The 980 nm InGaAs laser chip utilizes a ridge guide design for high performance and reliability. Chip and facet parameters are optimized for stabilized optical coupling and efficient pumping of the EDFA. The laser package design also includes a microlensed single-mode fiber and a planar InGaAs PIN back-facet photomonitor assembled in a modular organic-free hermetic package. Laser welding technology is used for critical joints to achieve long-term stability. Data is archived for at least ten years. Each module is fully characterized and traceable. Long-life performance and reliability are ensured through extensive steps of burn-in, overstress, and power aging. The 980-Type Pump Laser Module is available with a typical power output range of 20 mW to 70 mW. 980-Type Ultrahigh Reliability Pump Laser Module Preliminary Data Sheet April 1999 Description (continued) results for each 980-Type Pump Laser Module are then examined to ensure that only the pump laser modules that exhibit performance consistent with long-term system operation are selected for product. The 980-Type Pump Laser Module has been specifically designed for undersea optical amplified very high capacity transmission systems that require long-term life expectancy. The extremely stringent reliability requirements imposed on the 980-Type (necessary to achieve long-term system life) are accomplished through careful design, exacting manufacture, and thorough testing. The 980-Type qualification plan consists of a basic set of electro-optic and mechanical tests designed to confirm the performance and reliability of the module over its projected service life under assumed operating conditions. Custom designed, extended qualification test programs can be developed to focus on customer system requirements. Each 980-Type is individually serialized for full traceability and is shipped with the appropriate test data. The 980-Type assembly, test, and certification facilities have all passed the rigorous qualification process required for all facilities that manufacture devices employed in undersea applications. Also, on an ongoing basis, small quantities of product from each manufacturing lot are retained and tested as part of a surveillance program for undersea devices. Each surveillance group is subjected to the complete spectrum of environmental/mechanical stresses required during the qualification process. The surveillance results are reviewed and compiled so that long-term trends can be studied. The reliability performance of the 980-Type Pump Laser Module is a result of a rigorous qualification process combined with an extensive and ongoing surveillance program. Based on the results of qualification testing, a certification program has been developed to ensure the highreliability performance of the devices. Each 980-Type device undergoes this certification process where the performance parameters are measured before, during, and after environmental stresses. The certification Pinout Information Top View. 7 6 5 4 3 2 1 8 9 10 11 12 13 14 1-675(F).e Figure 1. Pinout Schematic 2 Lucent Technologies Inc. Preliminary Data Sheet April 1999 980-Type Ultrahigh Reliability Pump Laser Module Pinout Information (continued) Mounting Instructions Table 1. Pinout Descriptions The minimum fiber-bend radius is 25 mm. Pin Connection 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Chassis Ground Chassis Ground Photodetector Anode Photodetector Cathode Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Pump Laser Anode Pump Laser Cathode Chassis Ground Chassis Ground Chassis Ground To avoid degradation in performance, mount the module on the board as follows (see Figure 2): 1. Place the bottom flange of the module on a flat heat sink at least 0.5 in. x 1.180 in. (12.7 mm x 30 mm) in size. The surface finish of the heat sink should be better than 32 µin. (0.8 µm), and the surface flatness must be better than 0.001 in. (25.4 µm). Mount four #2-56 screws with Fillister heads (M23 mm) at the four screw hole locations (see Outline Diagram). The Fillister head diameter must not exceed 0.140 in. (3.55 mm). Do not apply more than 2 in./lb. of torque to the screws. To minimize package distortion, it is recommended that a washer is used above and beneath each mounting foot. Electrostatic Discharge Caution: This is a Class 0 ESD device which is susceptible to damage as a result of electrostatic discharge (ESD). Take proper precautions during both handling and testing. Follow JEDEC Publication No. 108-A (Dec. 1998). Handling Precautions 0.118 (3.00) 0.062 (1.58) 0.086 (2.18) 0.031 (0.79) 0.140 (3.56) 0.129 (3.28) 0.041 (1.04) Note: Dimensions are inches and (millimeters). 1-532(F) Figure 2. Fillister Head Screw Lucent employs a human-body model (HBM) and the field-induced charged-device model (CDM) for ESDsusceptibility testing and protection design evaluation. 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 purposes. The HBM ESD threshhold presented here was obtained using these circuit parameters: Parameter Charged-device Model Human-body Model Value Unit ≥200 ≥400 V V Power Sequencing Adopt the following sequence for turn-on as a matter of good practice to avoid the possibility of damage to the pump laser module from power supply switching transients: 1. All ground connections 2. Most negative supply 3. Most positive supply 4. All remaining connections Reverse the order for the proper turn-off sequence. Lucent Technologies Inc. 3 980-Type Ultrahigh Reliability Pump Laser Module Preliminary Data Sheet April 1999 Absolute Maximum Ratings The LPM will stay certified if it is operated at the maximum rating, for brief periods. Exposure to maximum ratings for extended periods can adversely affect device reliability. Parameter Storage Temperature Range Operating Temperature Range Laser Reverse Voltage Laser Forward Current Laser Reverse Current Fiber Output Power PIN Monitor Reverse Voltage PIN Monitor Forward Current Pigtail Pull Force (Axial) Pigtail Bend Radius Shock Vibration (10 Hz to 2000 Hz) Symbol Min Max Unit Tstg TOP VR IF IREV PF VPIN IFPIN F RP G VIB –20 0 — — — — — — — 25 — — 60 40 2 400 50 150 40 2 9 — 100 5 °C °C V mA µA mW V mA N mm G G Characteristics Table 2. Electrical Characteristics Parameter Operating Voltage (CW, 70 mW fiber output) Operating Current (CW, 70 mW fiber output) Monitor Reverse-Bias Voltage Monitor Current I = IOP Monitor Dark Current (VDET = –5 V) Symbol Min Max EOL Unit VOP — 2.2 2.2 V IOP 100 200 ≤250 mA VRMON IRMON ID — 0.3 — 40 2.0 25 — 2.0 — V mA mA Table 3. Optical Characteristics Parameter Symbol Optical Output Power Adjustment* Kink Power Center Wavelength Power Tracking (over 25 °C interval) Weighted RMS Spectral Width Output Spectrum Side-mode Suppression Optical Return Loss at Pigtail (1525 nm—1570 nm) Reliability. Over 29 Years at the Max Operating Conditions of Figure 2. PO PK λc ∆POT ∆λRMS ∆λSUPP RL Min Max Unit 15 70 85 — 974 984 — 0.6 — 0.7 — 20 13 ≤5% failures at ≤25 °C mW mW nm dB nm dB dB * Depending on the exact requirements, there may be two codes (deep and shallow water) necessary. 4 Lucent Technologies Inc. Preliminary Data Sheet April 1999 980-Type Ultrahigh Reliability Pump Laser Module Characteristics (continued) Table 4. Physical Characteristics Parameter Pigtail Fiber Type Jacket Type Fiber Length Between FBG and LPM Fiber Length Beyond FBG Minimum Radius of Curvature Connector Type Description Single-mode Lucent Technologies Optical Fiber Lightguide Lucent Technologies Minicord, 1.55 mm O.D. ≤1.1 m 1.5 m—2.0 m 25 mm FC/APC Ordering Information Device Part Number Comcode Ultrahigh-Reliability Pump Laser Module 980X TBD Lucent Technologies Inc. 5 980-Type Ultrahigh Reliability Pump Laser Module Preliminary Data Sheet April 1999 Class IIIb Laser Product This product complies with 21 CFR 1040.10 and 1040.11. Single-mode connector Wavelength = 0.98 µm Maximum power = 70 mW Because of size constraints, labeling is not affixed to the module but is contained in 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. DANGER INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM. Indium Gallium Arsenide Laser 70 mW Maximum Output @ 0.98 µm Class IIIb Laser Product Complies with 21 CFR 1040.10 and 1040.11 DANGER: Invisible laser radiation when disconnected and fiber removed. AVOID DIRECT EXPOSURE TO BEAM. 6 Lucent Technologies Inc. Lucent Technologies Inc. 0.20 (0.51) 0.010 (0.25) PROTECTIVE CAP PINCHED VACUUM TUBE 0.500 (12.70) 0.500 (12.70) 0.350 (8.89) 0.655 (16.64) 0.820 (20.83) LEAD 8 LEAD 7 0.020 (0.51) 1.024 (26.01) 1.180 (29.97) 0.100 (2.54) 0.078 (1.98) 0.105 (12.67) DIA 0.215 (5.46) 0.120 (3.05) DIA 0.060 (1.52) DIA 3.00 (76.2) 43.0 (1092) MAX GRATING 14.0 (356) MIN FIBER SPLICE LEAD 14 LEAD 1 0.212 (5.38) 10.0 (254) MIN JACKET JOIN 2.050 (52.07) 0.600 (15.24) 0.336 (8.53) 0.008 (0.20) 0.368 (9.35) 0.430 (10.92) 0.215 (5.46) CONNECTOR REF 59.0—78.0 (1499—1981) Preliminary Data Sheet April 1999 980-Type Ultrahigh Reliability Pump Laser Module Outline Diagram Dimensions are in inches and (millimeters). Tolerances are ±0.005 in. (±0.127 mm). 1-1008(F).r1 7 For additional information, contact your Microelectronics Group Account Manager or the following: INTERNET: http://www.lucent.com/micro, or for Optoelectronics information, http://www.lucent.com/micro/opto E-MAIL: [email protected] N. AMERICA: Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Zao Fong Universe Building, 1800 Zhong Shan Xi Road, Shanghai 200233 P. R. China Tel. (86) 21 6440 0468, ext. 316, FAX (86) 21 6440 0652 JAPAN: Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 1189 324 299, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK) Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Copyright © 1999 Lucent Technologies Inc. All Rights Reserved April 1999 DS99-112LWP