Data Sheet January 1999 A371-Type Analog Uncooled Isolated DFB FastLight ™ Laser Module ■ No thermoelectric cooler required ■ Single- and double-isolated versions available ■ High output power: typically 2.0 mW peak power coupled into single-mode fiber ■ Hermetically sealed active components ■ Internal back-facet monitor ■ Qualification program: Bellcore TA-983 Applications ■ Video and data applications ■ Downstream telephony and data ■ Return path systems ■ Mixed analog and digital modulation ■ Telecommunications Benefits The low-profile A371-Type Analog Laser Module is ideally suited for CATV applications, particularly in systems where long spans and superior reliability are the critical considerations. ■ Easily board mounted ■ Requires no lead bending ■ No additional heat sinks required ■ Pin compatible with industry-standard, 14-pin laser module ■ Highly efficient DFB-MQW laser structure allows for lower threshold and drive currents, and reduced power consumption ■ High output power allows for longer system spans, more fiber splits, and greater tolerance of fiber and connector quality ■ Internal isolator minimizes spurious noise Features ■ Eight-pin package suitable for CATV applications ■ Narrow linewidth, distributed-feedback, multiquantum-well (DFB-MQW)1.3 µm laser with single-mode fiber pigtail ■ ■ Wide operating temperature range: –40 °C to +85 °C Frequency range up to 1.0 GHz A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Data Sheet January 1999 Description 4 3 2 1 The A371-Type Uncooled Isolated 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 CATV applications. 5 6 7 8 The module includes a narrow linewidth (<1 nm), DFBMQW, single-mode laser and an InGaAs PIN photodiode back-facet monitor in a hermetically sealed package. 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 Optoelectronics unit of Lucent Technologies Microelectronics Group. 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 Opto’s highly automated production lines. The Laser 2000 platform is qualified for central office and uncontrolled environments, and can be used for applications requiring high performance and low cost. 1-900 (C) Figure 1. A371-Type Analog Uncooled Isolated DFB Laser Module Schematic, Top View Table 1. Pin Descriptions Pin Number Connection 1 2 3 4 5 6 7 8 NC Case ground NC Photodiode cathode Photodiode anode Laser diode cathode Laser diode anode NC 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 Lucent Technologies Inc. Data Sheet January 1999 A371-Type Analog Uncooled Isolated DFB FastLight 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. 108-A (Dec. 1988). Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD. Electro/Optical Characteristics Table 2. Electro/Optical Characteristics (over operating temperature range unless otherwise noted) Parameter Operating Temperature Range Optical Output Power* Threshold Current Drive Current Above Threshold Slope Efficiency Center Wavelength Spectral Width (–20 dB) Side-mode Suppression Ratio Tracking Error 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 CW, nominal 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 — 5 2 10 7.5 67 1280 — 30 2 11 — 20 — — — — 40 — 15 50 30 55 200 1335 1 — mW mA mA mA µW/mA nm nm dB IMON = constant, CW CW — † VR = 5 V V R† = 5 V — — — 3 100 — — 0.5 1.1 — — 10 0.09 1.25 1.6 8 1000 200 0.1 dB V Ω µA nA nm/°C IMOD SE λC ∆λ SMSR TE VF R IMON ID — * See Table 5 for more information. † VR = reverse voltage. Lucent Technologies Inc. 3 A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Data Sheet January 1999 Electro/Optical Characteristics (continued) Analog Operation The A371-Type Laser Module has the capability of being used in a wide variety of analog operations. These may include several channels of pure video signals, or a mix of video signals with digital data channels riding on analog carriers. It is difficult to prepare a single battery of testing conditions that will satisfy all applications. The following table contains a set of testing conditions that Lucent believes will give a broad indication of the performance of the A371 Series Laser Module. Please contact your local Field Application Engineer if different testing conditions and parametric limits are required. The distortion characteristics are measured using a two-tone test. The frequencies are 13 MHz and 19 MHz. The second-order distortion components are measured at f1 + f2 = 32 MHz and f1 – f2 = 6 MHz. All third-order distortion components are measured in the frequency range of 5 MHz—200 MHz, and they meet the required level. All measurements are made with SC-SPC connectors on the laser module pigtails. Table 3. Analog Characteristics Parameter Output Power* Relative Intensity Noise Symbol PO RIN Spurious Noise NSP Spurious Noise (carrier off) N'SP Test Conditions CW, T = –40 °C to +85 °C CW, PF = 2.0 mW, Freq. = 5 MHz to 300 MHz; no fiber loss, T = –40 °C to +85 °C –3 dB, PF = 2.0 mW, T = –40 °C to +85 °C T = 25 °C, PF = 2.0 mW, OMI = 0.2; Two-tone test: f1 = 13 MHz, f2 = 19 MHz; 20 km of fiber, (7 dB loss) plus connector loss, f1 ± f2 T = 25 °C, PF = 2.0 mW, OMI = 0.2; Two-tone test: f1 = 13 MHz, f2 = 19 MHz; 20 km of fiber (7 dB loss), plus connector loss, all peaks from 5 MHz—50 MHz meet this level T = 25 °C, PF = 2.0 mW, OMI = 0.2; ref. to one-tone: 5 MHz to 50 MHz, 20 km of fiber, (7 dB loss) plus connector loss T = 25 °C, PF = 2.0 mW Modulation Bandwidth BW RF Bandpass Flatness BPF Peak to valley, 5 MHz to 200 MHz Second-order Distortions — Third-order Distortions — Min — — Typ 2.0 –155 Max — –145 Unit mW dB/Hz 1.0 — — GHz — –54 –58† –46 –50 –54† –42‡ dBc dBc dBc — –70 –75† –69 –63 –68† –61‡ dBc dBc dBc — –63 –61 –60§ –58‡ dBc dBc — — –50 –54† –45 — –45 –50† –40‡ 1.0 dBc dBc dBc dB * See Table 5 for more information. † Double-isolated version. ‡ Low-performance option. § Single- and double-isolated versions. 4 Lucent Technologies Inc. Data Sheet January 1999 A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Outline Diagram Dimensions are in inches (and millimeters). TRADEMARK, CODE, LASER SERIAL NUMBER, AND/OR DATE CODE IN APPROXIMATE AREA SHOWN 4 3 2 1 5 6 7 8 1.06 (27.0) MIN 39.37 (1000) MIN PIGTAIL LENGTH 0.52 (13.2) 0.29 (7.37) 0.045 (1.143) 0.20 (5.00) 0.165 (4.20) 0.016 (0.410) 0.110 (2.79) 0.100 (2.54) 0.300 (7.62) 0.010 (0.254) 0.085 (2.16) 0.17 (4.32) 0.30 (7.62) 1-899.f Lucent Technologies Inc. 5 A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Data Sheet January 1999 Qualification Information The A371-Type Laser Module has completed and passed the following qualification tests and meets the intent of Bellcore TR-NWT-000468 for interoffice environments and TA-TSY-000983 for outside plant environments. Table 4. A371-Type Laser Module Qualification Test Plan Qualification Test Conditions 500 G Sample Size Reference 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 Bellcore 983 Accelerated (Biased) Aging 85 °C, 5,000 hrs. 25 Bellcore 983 Section 5.18 High-temperature Storage 85 °C, 2,000 hrs. 11 Bellcore 983 Temperature Cycling 500 cycles 11 Bellcore 983 Section 5.20 Cyclic Moisture Resistance 10 cycles 11 Bellcore 983 Section 5.23 40 °C, 95% RH, 1,344 hrs. 11 MIL-STD-202 Method 103 <5,000 ppm water vapor 11 MIL-STD-883 Method 1018 Flammability — — TR357 Sec. 4.4.2.5 ESD Threshold — 6 Bellcore 983 Section 5.22 Mechanical Shock Vibration Solderability Thermal Shock Fiber Pull Damp Heat Internal Moisture 6 Lucent Technologies Inc. Data Sheet January 1999 A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Laser Safety Information Class IIIb Laser Product 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, 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 AVOID DIRECT EXPOSURE TO BEAM. Indium Gallium Arsenide Phosphide Laser 10 mW max. Output @ 1.3 µm µm Class IIIb Laser Product Complies with 21 CFR 1040.10 and 1040.11 DANGER INVISIBLE RADIATION IS EMITTED FROM THE END OF THE FIBER OR CONNECTOR. AVOID DIRECT EXPOSURE TO THE BEAM. DO NOT VIEW WITH OPTICAL INSTRUMENTS. Lucent Technologies Inc. 7 A371-Type Analog Uncooled Isolated DFB FastLight Laser Module Data Sheet January 1999 Ordering Information Table 5. Ordering Information Device Code Comcode Pfiber Connector Performance Option A371-20AS A371-20BS A371-20FS A371-20GS A371-20NS 108053307 108173956 108120445 108130444 108043522 2.0 mW 2.0 mW 2.0 mW 2.0 mW 2.0 mW SC-PC SC-APC FC-PC FC-APC none Single Isolator Single Isolator Single Isolator Single Isolator Single Isolator A371-22AD A371-22BD A371-22FD A371-22GD A371-22ND 108348699 108348707 108348715 108348723 108348731 2.0 mW 2.0 mW 2.0 mW 2.0 mW 2.0 mW SC-PC SC-APC FC-PC FC-APC none Double Isolator Double Isolator Double Isolator Double Isolator Double Isolator A371-24AS A371-24BS A371-24FS A371-24GS A371-24NS 108401019 108401027 108401035 108401043 108401050 2.0 mW 2.0 mW 2.0 mW 2.0 mW 2.0 mW SC-PC SC-APC FC-PC FC-APC none Low Performance Low Performance Low Performance Low Performance Low Performance 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.FastLight is a trademark of Lucent Technologies Inc. Copyright © 1999 Lucent Technologies Inc. All Rights Reserved January 1999 DS99-035LWP (Replaces DS98-433LWP)