Data Sheet December 2000 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Applications ■ SONET OC-48/STM-16 systems ■ Telecommunications ■ Secure digital data systems Benefits The low-profile D372-Type Laser Module is ideally suited for OC-48 SONET and other high-speed digital applications. Features ■ 8-pin package suitable for SONET applications ■ Narrow linewidth, distributed feedback, multiquantum-well (DFB-MQW)1.3 µm laser with singlemode fiber pigtail ■ Choice of wide operating temperature ranges: –40 °C to +85 °C or 0 °C to +85 °C ■ No TEC required ■ High output power: typical 2.0 mW peak power coupled into single-mode fiber ■ Hermetically sealed active components ■ Internal back-facet monitor ■ Built-in thermistor and bias T ■ 25 Ω input impedance ■ Internal isolator ■ Qualification program: Telcordia Technologies * TA-983 * Telcordia Technologies is a registered trademark of Telcordia Technologies, Inc. ■ Easily board mounted ■ Gull wing leads ■ No additional heat sinks required ■ Low-cost alternative to industry-standard, 14-pin isolated laser module (ILM) ■ Highly efficient DFB-MQW laser structure allows for lower threshold and drive currents, and reduced power consumption Description The D372-type uncooled laser module consists of a laser diode coupled to a single-mode fiber pigtail. The device is available in a standard, 8-pin configuration (see Figure 1 and/or Table 1) and is ideal for long-reach (SONET) and other high-speed digital applications. The module includes a narrow linewidth (<1 nm), DFB-MQW single-mode laser and an InGaAs PIN photodiode back-facet monitor in a hermetically sealed package. This package is optimized for a 25 Ω input impedance and allows for dc biasing through an internal bias T. A thermistor has been included for feedback to board-level bias circuitry, if needed. D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Description (continued) Data Sheet December 2000 Table 1. Pin Descriptions The device characteristics listed in this document are met at 2.0 mW output power. Higher- or lower-power operation is possible. Under conditions of a fixed photodiode current, the change in optical output is typically ±0.5 dB over an operating temperature range of –40 °C to +85 °C. This device incorporates the new laser 2000 manufacturing process from the Optoelectronic Products unit of Agere Systems Inc.. Laser 2000 is a low-cost platform that targets high-volume manufacturing and tighter product distributions on all optical subassemblies. This platform incorporates an advanced optical design that is produced on one of the highly automated production lines at the Opotelectronic manufacturing facility. The laser 2000 platform is qualified for the central office and uncontrolled environments, and can be used for applications requiring high performance and low cost. 4 3 2 1 5 6 7 8 Pin Number Connection 1 2 3 4 5 6 7 8 Thermistor Thermistor, package GND Laser dc bias cathode (–) choke Photodiode cathode Photodiode anode Laser diode anode (+) Laser RF input cathode (–) 25 Ω Laser diode anode (+) 1-900.b Figure 1. D372-Type Digital Uncooled DFB Mini 8-Pin Laser Module Schematic, Top View Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Maximum Peak Laser Drive Current or Maximum Fiber Power* Peak Reverse Laser Voltage: Laser Monitor Monitor Forward Current Operating Case Temperature Range Storage Case Temperature Range Lead Soldering Temperature/Time Relative Humidity (noncondensing) Symbol Min Max Unit IOP PMAX — — 150 10 mA mW VRL VRD IFD TC Tstg — RH — — — –40 –40 — — 2 20 2 85 85 260/10 85 V V mA °C °C °C/s % * Rating varies with temperature. 2 Agere Systems Inc. Data Sheet December 2000 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Handling Precautions 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 JEDEC Publication No. 108-A (Dec. 1988). Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD. Electrical/Optical Characteristics Table 2. D372-20 Electrical/Optical Characteristics (over operating temperature range unless otherwise noted) Parameter Operating Temperature Range Optical Output Power Threshold Current Modulation Current Slope Efficiency* Center Wavelength Spectral Width (–20 dB) Side-mode Suppression Ratio Tracking Error Spontaneous Emission Rise/Fall Times Dispersion Penalty Optical Return Loss Forward Voltage Input Impedance Monitor Current Monitor Dark Current Wavelength Temperature Coefficient Symbol Test Conditions Min Typ Max Unit T — –40 — 85 °C PF ITH — 5 2 13 7.5 61 1280 — 30 2 11 — 20 — — — — 40 — 15 50 33 55 154 1335 1 — mW mA mA mA SE λC ∆λ SMSR CW, peak T = 25 °C T = full range CW, PF = 2.0 mW, T = 25 °C CW, IMON = const.,T = full range CW, PF = 2.0 mW, T = 25 °C PF = 2.0 mW, CW PF = 2.0 mW CW, PF = 2.0 mW µW/mA nm nm dB TE PTH tR, tF DP ORL VF R IMON ID — IMON = constant, CW I = (0.9) ITH 10%—90% pulse†, T = 25 °C <60 km, 256 ps/nm CW At bias coil — VR‡ = 5 V VR‡ = 5 V — — — — — 18 — — 100 — — 0.5 — 0.125 — — 1.1 25 — 10 0.09 1.25 50 0.150 1.0 — 1.6 — 1000 200 0.1 dB µW ns dB dB V Ω µA nA nm/°C IMOD * The slope efficiency is used to calculate the modulation current for a desired output power. This modulation current plus the threshold current comprise the total operating current for the device. † Corrected for electrical pulse fall time. ‡ VR = reverse voltage. Agere Systems Inc. 3 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Data Sheet December 2000 Electrical/Optical Characteristics (continued) Table 3. D372-21 Electrical/Optical Characteristics (over operating temperature range unless otherwise noted) Parameter Operating Temperature Range Optical Output Power Threshold Current Modulation Current Slope Efficiency* Center Wavelength Spectral Width (–20 dB) Side-mode Suppression Ratio Tracking Error Spontaneous Emission Rise/Fall Times Dispersion Penalty Optical Return Loss Forward Voltage Input Impedance Monitor Current Monitor Dark Current Wavelength Temperature Coefficient Symbol Test Conditions Min Typ Max Unit T — 0 — 85 °C PF ITH CW, peak T = 25 °C T = full range CW, PF = 2.0 mW, T = 25 °C CW, IMON = const.,T = full range CW, PF = 2.0 mW, T = 25 °C PF = 2.0 mW, CW PF = 2.0 mW CW, PF = 2.0 mW (See Reliability Information, below) IMON = constant, CW I = (0.9) ITH 10%—90% pulse†, T = 25 °C <60 km, 256 ps/nm (See Reliability Information, below) CW At bias coil — ‡ VR = 5 V VR‡ = 5 V — — 5 2 13 7.5 61 1280 — 30 2 11 — 20 — — — — — — 15 50 33 55 154 1335 1 — mW mA mA mA µW/mA nm nm dB — — — — 0.5 — 0.125 — 1.25 50 0.150 1.0 dB µW ns dB 18 — — 100 — — — 1.1 25 — 10 0.09 — 1.6 — 1000 200 0.1 dB V Ω µA nA nm/°C IMOD SE λC ∆λ SMSR TE PTH tR, tF DP ORL VF R IMON ID — * The slope efficiency is used to calculate the modulation current for a desired output power. This modulation current plus the threshold current comprise the total operating current for the device. † Corrected for electrical pulse fall time. ‡ VR = reverse voltage. Reliability Information Note, the D372-21 product does not undergo any routine dynamic testing. A 2000-piece sample was tested at 2.5 Gbits/s for SMSR at 0 °C. In that sample, 99.5% of the devices had SMSR values greater than 30 dB. Within the failures, 90% were for inability to achieve an extinction ration of 10 dB or more. Surveillance samples are tested to verify that the failure rate has not changed, 4 Agere Systems Inc. Data Sheet December 2000 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Qualification Information The D372-type laser module is scheduled to complete the following qualification tests and meets the intent of Telcordia Technologies TR-NWT-000468 for interoffice environments and TA-TSY-000983 for outside plant environments. Table 4. D372-Type Laser Module Qualification Test Plan Qualification Test Conditions Sample Size Reference 500 G 11 MIL-STD-883 Method 2002 20 g, 20 Hz—2,000 Hz 11 MIL-STD-883 Method 2007 — 11 MIL-STD-883 Method 2007 Delta T = 100 °C 11 MIL-STD-883 Method 2003 1 kg; 3 times 11 Telcordia Technologies 983 Accelerated (Biased) Aging 85 °C, 5,000 hrs. 25 Telcordia Technologies 983, Section 5.18 High-temperature Storage 85 °C, 2,000 hrs. 11 Telcordia Technologies 983 Temperature Cycling 500 cycles 11 Telcordia Technologies 983, Section 5.20 Cyclic Moisture Resistance 10 cycles 11 Telcordia Technologies 983, Section 5.23 40 °C, 95% RH, 1344 hrs. 11 MIL-STD-202 Method 103 <5,000 ppm water vapor 11 MIL-STD-883 Method 1018 Flammability — — TR357 Section 4.4.2.5 ESD Threshold — 6 Telcordia Technologies 983, Section 5.22 Mechanical Shock Vibration Solderability Thermal Shock Fiber Pull Damp Heat Internal Moisture Agere Systems Inc. 5 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Data Sheet December 2000 Outline Diagram Dimensions are in inches and (millimeters).Laser Safety Information 0.300 (7.62) 0.100 (2.54) TRADEMARK, CODE, LASER SERIAL NUMBER, AND/OR DATE CODE IN APPROXIMATE AREA SHOWN 0.169 (4.30) 0.29 (7.37) 0.169 (4.30) 1.06 (27.0) MIN 0.52 (13.21) 39.37 (1000) MIN (PIGTAIL LENGTH) 0.045 (1.143) 0.20 (5.00) 0.02 (0.50) 0.17 (4.32) 1.925.e 6 Agere Systems Inc. Data Sheet December 2000 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications 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 3B 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. 8.3 µm single-mode pigtail or connector Wavelength = 1.3 µm Maximum power = 10 mW Because of size constraints, labeling 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. 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: 10 mW Wavelength: 1.3 µm * IEC is a registered trademark of The International Electrotechnical Commission. Agere Systems Inc. 7 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications Data Sheet December 2000 Ordering Information Table 5. D372-20 Ordering Information Device Code* Comcode Pfiber Connector D372-20AS D372-20BS D372-20FS D372-20GS 108088048 108224973 108130469 108332032 2.0 mW 2.0 mW 2.0 mW 2.0 mW SC-PC SC-APC FC-PC FC-APC * Trailing S in code indicates that the module contains an isolator. Table 6. D372-21 Type Ordering Information Device Code* Comcode Pfiber Connector D372-21AS D372-21BS D372-21FS D372-21GS D372-21SS 108898073 108898081 108898099 108898107 108898114 2.0 mW 2.0 mW 2.0 mW 2.0 mW 2.0 mW SC-PC SC-APC FC-PC FC-APC FC-APC * Trailing S in code indicates that the module contains an isolator. For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: [email protected] N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 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 CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 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, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK) Agere Systems 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. Copyright © 2001 Agere Systems Inc. All Rights Reserved December 2000 DS01-020OPTO (Replaces DS99-023LWP)