A371-Type Analog Uncooled Isolated

Data Sheet

DFB

FastLight Laser Module

January 1999

2

2

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

°C.

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

Laser Module Schematic, Top View

Table 1. Pin Descriptions

Pin Number

Connection

1NC

2

Case ground

3NC

4

Photodiode cathode

5

Photodiode anode

6

Laser diode cathode

7

Laser diode anode

8NC

56

8

7

43

1

2

1-900 (C)

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute 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.

* Rating varies with temperature.

Parameter

Symbol

Min

Max

Unit

Maximum Peak Laser Drive Current or

Maximum Fiber Power*

—

—

150

10

mA

mW

Peak Reverse Laser Voltage:

Laser

Monitor

—

—

2

20

V

V

Monitor Forward Current

—2

mA

Operating Case Temperature Range

–40

85

°C

Storage Case Temperature Range

–40

85

°C

Lead Soldering Temperature/Time

—

—

260/10

°C/s

Relative Humidity (noncondensing)

RH

—

85

%