Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Applications ■ Short-reach SONET OC-48 systems ■ SDH STM-16 systems ■ Telecommunications ■ Secure digital data systems Benefits The low-profile D374-Type Laser Module is ideally suited for short- and long-reach SONET and other high-speed digital applications. Features ■ 2.5 Gbits/s operation ■ Eight-pin package suitable for SONET/SDH applications ■ MQW F-P 1.3 µm laser with single-mode fiber pigtail ■ Wide operating temperature range: –40 °C to +85 °C ■ No TEC required ■ 25 Ω input impedance ■ High output power: typically 1.0 mW peak power coupled into single-mode fiber; 0.2 mW versions available ■ Hermetically sealed active components ■ Internal back-facet monitor ■ Qualification program: Telcordia Technologies * TA983 * Telcordia Technologies is a registered trademark of Telcordia Technologies, Inc. ■ Easily board mounted ■ Gull wing leads ■ No additional heat sinks required Description The D374-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 short-reach and other high-speed digital applications. It is developed specifically for 2.5 Gbits/s applications. The module includes a multiquantum-well FabryPerot (MQW F-P) laser and an InGaAs PIN photodiode back-facet monitor in an epoxy-free, hermetically sealed package. Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Description (continued) and uncontrolled environments, and can be used for applications requiring high performance and low cost. The device characteristics listed in this document are met at 1.0 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. Table 1. Pin Descriptions Pin Number Connection 1 2 3 4 5 6 7 8 NC/reserved Case ground NC/reserved PD cathode PD anode Laser diode anode (+) Laser RF input cathode (–), 25 Ω Laser diode anode (+) This device incorporates the new Laser 2000 manufacturing process developed by the Optoelectronic unit of Agere Systems Inc. Laser 2000 is a low-cost platform that targets high-volume manufacturing and tight product distributions on all optical subassemblies. This platform incorporates an advanced optical design that is produced on a highly automated production line. The Laser 2000 platform is qualified for the central office 4 3 2 1 5 6 7 8 1-900 Figure 1. D374-Type Digital Uncooled 2.5 Gbits/s 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 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module 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. 108A (Dec. 1988). Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD. Electrical/Optical Characteristics Table 2. Electrical/Optical Characteristics (over operating temperature range unless otherwise noted) Parameter Operating Temperature Range Optical Output Power* Threshold Current Symbol Test Conditions Min Typ Max Unit T — –40 — 85 °C PF ITH CW, nominal T = 25 °C T = full range CW, PF = 1.0 mW, T = 25 °C CW, IMON = constant, T = full range CW, PF = 1.0 mW, T = 25 °C PF = 1.0 mW, CW PF = 1.0 mW, 155 Mbits/s IMON = constant, CW I = (0.9) ITH 10%—90% pulse T = 25 °C At bias coil — VR ‡ = 5 V VR ‡ = 5 V — — 4.5 1 10 8 1 9 — 15 — — 15 45 20 35 mW mA mA mA mA 50 1270 — — — — 75 — 2 0.5 — 0.125 100 1350 3 ±1 50 0.150 µW/mA nm nm dB µW ns — — 150 — — 1.1 25 — 10 0.4 1.6 — 750 200 0.5 V Ω µA nA nm/°C Modulation Current IMOD Slope Efficiency† Center Wavelength RMS Spectral Width Tracking Error Spontaneous Emission Rise/Fall Times SE λC ∆λ TE PTH tR, tF Forward Voltage Input Impedance Monitor Current Monitor Dark Current Wavelength Temperature Coefficient VF R IMON ID — * Higher and lower powers available. See Table 4 for more information. † 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. ‡ VR = reverse voltage. Agere Systems Inc. 3 Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Characteristic Curve 3.0 2500 2000 2.0 1500 1000 FORWARD LASER VOLTAGE 1.0 MONITOR DIODE CURRENT VOLTAGE (mV) VOLTAGE (mV) CURRENT CURRENT(µA) (µA) LASER POWER (mW) L/I CURVE 500 0 0 0 25 50 75 100 125 150 TEMP = 25 oC LASER CURRENT (mA) 1-884 (C) Figure 2. Typical D374-Type Laser Module L/I Curve Qualification Information The D374-Type Laser Module has completed and passed 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 3. D374-Type Laser Module Qualification Test Plan Qualification Test Mechanical Shock Conditions 500 G Sample Size 11 Reference 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 Bellcore 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. <5,000 ppm water vapor 11 MIL-STD-202, Method 103 11 MIL-STD-883, Method 1018 Flammability — — TR357, Section 4.4.2.5 ESD Threshold — 6 Telcordia Technologies 983, Section 5.22 Vibration Solderability Thermal Shock Fiber Pull Damp Heat Internal Moisture 4 Agere Systems Inc. Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Outline Diagram Dimensions are in inches and (millimeters). 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 Agere Systems Inc. 5 Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module 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 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 with optional connector. Wavelength = 1.3 µm. Maximum power = 10 mW. Because of size constraints, laser safety 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. 6 Agere Systems Inc. Data Sheet December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Ordering Information Table 4. Ordering Information Code Comcode Pfiber Connector D374-10A D374-10F D374-02A D374-02F D374-02N 108200601 108226911 108321456 108321464 108320144 1.0 mW 1.0 mW 0.2 mW 0.2 mW 0.2 mW SC-PC FC-PC SC-PC FC-PC None Agere Systems Inc. 7 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module Data Sheet December 2000 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 DS99-010LWP-1 (Replaces DS99-010LWP)