D370-02F Datasheet

Laser Module->Consumer


Features, Applications


Long-reach SONET OC-3/OC-12 systems SDH STM-1/STM-4 systems Telecommunications Secure digital data systems

Easily board mounted Requires no lead bending No additional heat sinks required Pin compatible with industry-standard, 14-pin laser module

The low-profile D370-Type Laser Module is ideally suited for short- and long-reach SONET and other high-speed digital applications.


Eight-pin package suitable for SONET/SDH applications MQW F-P 1.3 �m laser with single-mode fiber pigtail Wide operating temperature range: �C No TEC required High output power: typically 1.0 mW peak power coupled into single-mode fiber; 0.2 mW and 2.0 mW versions available Hermetically sealed active components Internal back-facet monitor Qualification program: Telcordia Technologies * TA-983


The D370-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-haul (SONET) and other digital 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.

* Telcordia Technologies is a registered trademark of Telcordia Technologies, Inc.

central office and uncontrolled environments, and can be used for applications requiring high performance and low cost. Table 1. Pin Descriptions Pin Number Connection NC/reserved Case ground NC/reserved Photodiode cathode Photodiode anode Laser diode cathode Laser diode anode NC/reserved

The device characteristics listed in this document are met 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 to +85 �C. This device incorporates the new laser 2000 manufacturing process from the Optoelectronic Products unit of Agere Systems Inc. Laser 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 Agere Systems' highly automated production lines. The laser 2000 platform is qualified for the

Figure 1. D370-Type Digital Uncooled Laser Module Schematic, Top View

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 Forward Current Operating Case Temperature Range Storage Case Temperature Range Lead Soldering Temperature/Time Relative Humidity (noncondensing)

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.

Table 2. Electrical/Optical Characteristics (over operating temperature range unless otherwise noted) Parameter Operating Temperature Range Optical Output Power* Threshold Current Modulation Current Symbol T PF ITH IMOD Test Conditions CW, nominal T = full range CW, = 1.0 mW, 25 �C CW, IMON = constant T = full range CW, = 1.0 mW, = 1.0 mW, = 1.0 mW, 155 Mbits/s IMON = constant, I = ITH 0.9 10%--90% pulse, �C CW Min Typ Max Unit mW mA �W/mA �A nA nm/�C

Slope Efficiency Center Wavelength RMS Spectral Width Tracking Error Spontaneous Emission Rise/Fall Times Forward Voltage Input Impedance Monitor Current Monitor Dark Current Wavelength Temperature Coefficient

* 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.



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