A371 AGERE | Alldatasheet
Document overview
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Technical content
Features
n Eight-pin package suitable for CATV applications n Narrow linewidth, distributed-feedback, multiquantum-well (DFB-MQW)1.3 m m laser with single-mode fiber pigtail n Wide operating temperature range: –40 C to +85 C n Frequency range up to 1.0 GHz n No thermoelectric cooler required n Single- and double-isolated versions available n High output power: typically 2.0 mW peak power coupled into single-mode fiber n Hermetically sealed active components n Internal back-facet monitor n Qualification program: Bellcore TA-983
Applications
n Video and data applications n Downstream telephony and data n Return path systems n Mixed analog and digital modulation n Telecommunications Benefits n Easily board mounted n Requires no lead bending n No additional heat sinks required n Pin compatible with industry-standard, 14-pin laser module n Highly efficient DFB-MQW laser structure allows for lower threshold and drive currents, and reduced power consumption n High output power allows for longer system spans, more fiber splits, and greater tolerance of fiber and connector quality n Internal isolator minimizes spurious noise
A371-Type Analog Uncooled Isolated Data Sheet DFB FastLight Laser Module January 1999 22 Lucent Technologies Inc.
Description
The A371-Type Uncooled Isolated Laser Module con- sists of a laser diode coupled to a single-mode fiber pigtail. The device is available in a standard, 8-pin con- figuration (see Figure 1 and/or Table 1) and is ideal for CATV applications. The module includes a narrow linewidth (<1 nm), DFB- MQW, single-mode laser and an InGaAs PIN photo- diode back-facet monitor in a hermetically sealed pack- age. 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 pho- todiode current, the change in optical output is typically 0.5 dB over an operating temperature range of –40 C to +85 This device incorporates the new Laser 2000 manufac- turing process from the Optoelectronics unit of Lucent Technologies Microelectronics Group. Laser 2000 is a low-cost platform that targets high-volume manufactur- ing and tight product distributions on all optical subas- semblies. This platform incorporates an advanced optical design that is produced on Opto’s highly auto- mated production lines. The Laser 2000 platform is qualified for central office and uncontrolled environ- ments, and can be used for applications requiring high performance and low cost. Figure 1. A371-Type Analog Uncooled Isolated DFB Table 1. Pin Descriptions
2 Case ground
4 Photodiode cathode
5 Photodiode anode
6 Laser diode cathode
7 Laser diode anode
periods can adversely affect device reliability.
- Rating varies with temperature.
precautions during both handling and testing. Follow guidelines such as JEDEC Publication No. Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD.
- See Table 5 for more information.
Table 2. Electro/Optical Characteristics
parametric limits are required. measurements are made with SC-SPC connectors on the laser module pigtails.
- See Table 5 for more information.
§Single- and double-isolated versions. Table 3. Analog Characteristics
Data Sheet A371-Type Analog Uncooled Isolated January 1999 DFB FastLight Laser Module 5Lucent Technologies Inc. Outline Diagram Dimensions are in inches (and millimeters). 0.010 (0.254) 0.30 (7.62) 0.29 (7.37) 0.085 (2.16) 0.17 (4.32) 0.20 (5.00) 0.165 (4.20) 0.016 (0.410) 0.100 (2.54) 0.300 (7.62) 0.110 (2.79) 0.045 (1.143) 4 3 21 5 6 78 39.37 (1000) MIN PIGTAIL LENGTH0.52 (13.2) 1.06 (27.0) MIN TRADEMARK, CODE, LASER SERIAL NUMBER, AND/OR DATE CODE IN APPROXIMATE AREA SHOWN 1-899.f
Bellcore TR-NWT -000468 for interoffice environments and TA-TSY -000983 for outside plant environments. Table 4. A371-Type Laser Module Qualification Test Plan
11 MIL-STD-202
Data Sheet A371-Type Analog Uncooled Isolated January 1999 DFB FastLight Laser Module 7Lucent Technologies Inc. Laser Safety Information Class IIIb Laser Product This product complies with 21 CFR 1040.10 and 1040.11. 8.3 mm single-mode pigtail or connector Wavelength = 1.3 mm 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 RADIATION IS EMITTED FROM THE END OF THE FIBER OR CONNECTOR. AVOID DIRECT EXPOSURE TO THE BEAM. DO NOT VIEW WITH OPTICAL INSTRUMENTS. DANGER INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM. Indium Gallium Arsenide Phosphide Laser 10 mW max. Output @ 1.3 µm Class IIIb Laser Product Complies with 21 CFR 1040.10 and 1040.11 mm
rights under any patent accompany the sale of any such product(s) or information.FastLight is a trademark of Lucent Technologies Inc. Co pyright © 1999 Lucent Technologies Inc. Table 5. Ordering Information