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PDF D372-20GS Data sheet ( Hoja de datos )

Número de pieza D372-20GS
Descripción D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications
Fabricantes Agere Systems 
Logotipo Agere Systems Logotipo



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Data Sheet
December 2000
D372-Type Digital Uncooled DFB
Laser Module for 2.5 Gbits/s Applications
Applications
s SONET OC-48/STM-16 systems
s Telecommunications
s Secure digital data systems
The low-profile D372-Type Laser Module is ideally suited for
OC-48 SONET and other high-speed digital applications.
Features
s 8-pin package suitable for SONET applications
s Narrow linewidth, distributed feedback, multiquan-
tum-well (DFB-MQW)1.3 µm laser with single-
mode fiber pigtail
s Choice of wide operating temperature ranges:
–40 °C to +85 °C or 0 °C to +85 °C
s No TEC required
s High output power: typical 2.0 mW peak power
coupled into single-mode fiber
s Hermetically sealed active components
s Internal back-facet monitor
s Built-in thermistor and bias T
s 25 input impedance
s Internal isolator
s Qualification program: Telcordia Technologies *
TA-983
Benefits
s Easily board mounted
s Gull wing leads
s No additional heat sinks required
s Low-cost alternative to industry-standard, 14-pin
isolated laser module (ILM)
s Highly efficient DFB-MQW laser structure allows
for lower threshold and drive currents, and reduced
power consumption
Description
The D372-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 configu-
ration (see Figure 1 and/or Table 1) and is ideal for
long-reach (SONET) and other high-speed digital
applications.
The module includes a narrow linewidth (<1 nm),
DFB-MQW single-mode laser and an InGaAs PIN
photodiode back-facet monitor in a hermetically
sealed package.
This package is optimized for a 25 input imped-
ance and allows for dc biasing through an internal
bias T. A thermistor has been included for feedback
to board-level bias circuitry, if needed.
* Telcordia Technologies is a registered trademark of Telcordia
Technologies, Inc.

1 page




D372-20GS pdf
Data Sheet
December 2000
D372-Type Digital Uncooled DFB
Laser Module for 2.5 Gbits/s Applications
Qualification Information
The D372-type laser module is scheduled to complete the following qualification tests and meets the intent of Tel-
cordia Technologies TR-NWT-000468 for interoffice environments and TA-TSY-000983 for outside plant environ-
ments.
Table 4. D372-Type Laser Module Qualification Test Plan
Qualification Test
Mechanical Shock
Conditions
500 G
Vibration
20 g, 20 Hz—2,000 Hz
Solderability
Thermal Shock
Delta T = 100 °C
Fiber Pull
1 kg; 3 times
Accelerated (Biased) Aging
85 °C, 5,000 hrs.
High-temperature Storage
85 °C, 2,000 hrs.
Temperature Cycling
500 cycles
Cyclic Moisture Resistance
10 cycles
Damp Heat
Internal Moisture
40 °C, 95% RH,
1344 hrs.
<5,000 ppm water vapor
Flammability
ESD Threshold
Sample Size
11
11
11
11
11
25
11
11
11
11
11
6
Reference
MIL-STD-883
Method 2002
MIL-STD-883
Method 2007
MIL-STD-883
Method 2007
MIL-STD-883
Method 2003
Telcordia Technologies
983
Telcordia Technologies
983, Section 5.18
Telcordia Technologies
983
Telcordia Technologies
983, Section 5.20
Telcordia Technologies
983, Section 5.23
MIL-STD-202
Method 103
MIL-STD-883
Method 1018
TR357
Section 4.4.2.5
Telcordia Technologies
983, Section 5.22
Agere Systems Inc.
5

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