Datasheet D371 Datasheet (Agere Systems)

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Data Sheet

January 1999

D371-Type Digital Uncooled DFB
Laser Module

Applications

■

Long-reach SONET OC-3/OC-12 systems

■

Telecommunications

■

Secure digital data systems

Benefits

The low-profile D371-Type Laser Module is ideally suited for
short- and long-haul SONET and other high-speed digital
applications.

Features

■

Eight-pin package suitable for SONET applications

■

Narrow linewidth, distributed-feedback, multiquan­tum-well (DFB-MQW)1.3 µ m laser with single­mode fiber pigtail

■

Wide operating temperature range:
–40 ° C to +85 ° C

■

No TEC required

■

High output power: typical 2.0 mW peak power
coupled into single-mode fiber

■

Hermetically sealed active components

■

Internal back-facet monitor

■

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

Description

The D371-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-reach (SONET) and other high-speed digital
applications.

The laser diode is a narrow linewidth (<1 nm) DFB­MQW single-mode laser and an InGaAs PIN photo­diode back-facet monitor in an epoxy-free, hermeti­cally sealed package.

■

Qualification program:
TA-983

*

T elcordia Technologies

Technologies, Inc.

Telcordia Technologies

is a registered trademark of Telcordia

*

Data

Sheet

±

°

°

D371-Type Digital Uncooled DFB Laser Module January 1999

Description

(continued)

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 manufac-

turing process developed by the Optoelectronic unit of
Agere Systems Inc. Laser 2000 is a low-cost platform
that targets high-volume manufacturing and tighter
product distributions on all optical subassemblies. The
platform incorporates an advanced optical design that
is produced on a highly automated production line. The
Laser 2000 platform is qualified for the central office
and uncontrolled environments, and can be used for
applications requiring high performance and low cost.

43 12

Table 1. Pin Descriptions

Pin Number Connection

1 NC/reserved
2 Case ground
3 NC/reserved
4 Photodiode cathode
5 Photodiode anode
6 Laser diode cathode
7 Laser diode anode
8 NC/reserved

56 87

1-900 (C)

Figure 1. D371-Type Digital Uncooled DFB Laser Module Schematic, Top View

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 Symbol Min Max Unit

Maximum Peak Laser Drive Current or

Maximum Fiber Power*

Peak Reverse Laser Voltage:

Laser

Monitor
Monitor Forward Current I
Operating Case Temperature Range T
Storage Case Temperature Range T
Lead Soldering Temperature/Time — — 260/10 ° C/s
Relative Humidity (noncondensing) RH — 85 %

OP

I

MAX

P

RL

V

RD

V

FD

C

stg

—
—

—
—

150

10

2

20

mA

mW

V
V

—2mA
–40 85
–40 85

C
C

* Rating varies with temperature.

22

Agere Systems Inc.

Data

Sheet

°

∆λ

Ω

µ

January 1999 D371-Type Digital Uncooled DFB Laser Module

Handling Precautions

Caution: This device is susceptible to dama ge as a result of electrostatic disc harge (ESD). T ake pr oper pre-

cautions during both handling and testing. Follow guidelines such as JEDEC Pub lication No. 108­A (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 Symbol Test Conditions Min Typ Max Unit

Operating Temperature

Range
Optical Output Power* P
Threshold Current I

Modulation Current I

Slope Efficiency

†

Center Wav elength
Spectral Width (–20 dB)
Side-mode Suppression

Ratio
Tracking Error TE I
Spontaneous Emission P
Rise/Fall Times t

Forward Voltage V
Input Impedance R — 3 — 8
Monitor Current I
Monitor Dark Current I
Wav elength Tempera-

ture Coefficient

* 1 mW power option also 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.

‡V

= reverse voltage.

R

T — –40 — 85

F

TH

MOD

CW, P

CW, I

SE CW, P

C

λ

SMSR CW, P

TH

, t

R

F

CW, nominal — 2 — mW

T = 25 ° C

T = full range

F

= 2.0 mW, T = 25 ° C

MON

= const. T = full range

F

= 2.0 mW, T = 25 ° C 67 — 200 µ W/mA

F

P

= 2.0 mW, CW 1280 — 1335 nm

P

F

= 2.0 mW, 622 Mbits/s — — 1 nm

= 2.0 mW 30 40 — dB

F

MON

= constant, CW — 0.5 — dB

I = (0.9) I

TH

10%—90% pulse

4
2

10

7.5

11
—

20
—

15
50

30
55

——50
— 0.25 0.5 ns

T = 25 ° C

F

MON

D

CW — 1.1 1.6 V

‡

V

= 5 V 50 — 1000

R

‡

R

V

= 5 V — 10 200 nA

— — — 0.09 0.1 nm/ ° C

C

mA
mA

mA

µ

W

A

Agere Systems Inc.

3

Data Sheet

1

(

)

D371-Type Digital Uncooled DFB Laser Module January 1999

Outline Diagram

Dimensions are in inches and (millimeters).

TRADEMARK, CODE, LASER SERIAL NUMBER,

AND/OR DATE CODE IN APPROXIMATE AREA SHOWN

3

4

5678

21

0.52 (13.2)

1.06 (27.0)
MIN

39.37 (1000) MIN

PIGTAIL LENGTH

0.20 (5.00)

0.165 (4.20)

0.100 (2.54)

0.300
(7.62)

0.045 (1.143)

0.016 (0.410)

0.110 (2.79)

0.010

(0.254)

0.29

(7.37)

0.17

(4.32)

0.30

7.62

0.085
(2.16)

1-899 (C).f

4

Agere Systems Inc.

Data

Sheet

January 1999 D371-Type Digital Uncooled DFB Laser Module

Qualification Information

The D371-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 3. D371-Type Laser Module Qualification Test Plan

Qualification Test Conditions Sample Size Reference

Mechanical Shock

Vibration

Solderability

Thermal Shock

Fiber Pull

Accelerated (Biased) Aging

85 ° C Storage

Temperature Cycling

Cyclic Moisture Resistance

Damp Heat

Internal Moisture

Flammability

ESD Threshold

2 kg; 3 times for information

1,000 hrs. for provisional qual.

1,000 cycles for information

1,000 hrs. for provisional qual.

500 G for P/F

1,500 G for information
20 g, 20 Hz—2,000 Hz

—

Delta T = 100 ° C

1 kg; 3 times for P/F

85 ° C, 5,000 hrs.

2,000 hrs. for P/F

5,000 hrs. for information

500 cycles for P/F

10 cycles for P/F

20 cycles for information

40 ° C, 95% RH

1,344 hrs. for P/F

<5,000 ppm water vapor

—

—

11 MIL-STD-883

Method 2002

11 MIL-STD-883

Method 2007

11 MIL-STD-883

Method 2007

11 MIL-STD-883

Method 2003

11

25

11

11

11

11 MIL-STD-202

11 MIL-STD-883

— TR357

6

Telcordia Technologies

983

Telcordia Technologies

983

Section 5.18

Telcordia Technologies

983

Telcordia Technologies

983

Section 5.20

Telcordia Technologies

983

Section 5.23

Method 103

Method 1018

Sec. 4.4.2.5

Telcordia Technologies

983

Section 5.22

Agere Systems Inc.

5

Data Sheet

D371-Type Digital Uncooled DFB Laser Module January 1999

Laser Safety Information

Class IIIb Laser Product

FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser
Safety requirements. All versions are Class 3B laser products per
fied with the FDA under accession number 8720010.

This product complies with 21 CFR 1040.10 and 1040.11.

8.3 µ m single-mode pigtail with optional connector.
Wavelength = 1.3 µ m.
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.

IEC

* 60825-1:1993. The device has been classi-

DANGER

INVISIBLE LASER RADIATION
IS EMITTED FROM THE END
OF FIBER OR CONNECTOR
Avoid direct exposure to beam

Do not view beam directly with
optical instruments

INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR

Avoid exposure to beam
Class 3B Laser Product IEC-60825M 1993 Max. Output: 10 mW Wavelength: 1.3 µm

is a registered trademark of The International Electrotechnical Commission.

*

IEC

6

Agere Systems Inc.

Data Sheet

January 1999 D371-Type Digital Uncooled DFB Laser Module

Ordering Information

Table 4. Ordering Information

Device Code Comcode

D371-10A 107950941 –40 to +85 1.0 mW SC-PC
D371-20A 107950958 –40 to +85 2.0 mW SC-PC
D371-22A 108286527 0 to 65 2.0 mW SC-PC
D371-20B 108225376 –40 to +85 2.0 mW SC-APC
D371-10F 107950982 –40 to +85 1.0 mW FC-PC
D371-20F 107950990 –40 to +85 2.0 mW FC-PC
D371-22F 108286535 0 to 65 2.0 mW FC-PC
D371-10N 107951006 –40 to +85 1.0 mW none
D371-20N 107951014 –40 to +85 2.0 mW none
D371-22N 108288382 0 to 65 2.0 mW none

Operating Case

Temperature Range (°C)

Pfiber Connector

Agere Systems Inc.

7

Data Sheet

D371-Type Digital Uncooled DFB Laser Module January 1999

For additional information, contact your Agere Systems Account Manager or the following:
INTERNET: http://www.agere.com
E-MAIL: [e-mail]
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286

ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC
JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
EUROPE: Data Requests: DATALINE: Tel. [phone], FAX [phone]

Agere Systems 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.

Copyright © 2001 Agere Systems Inc.
All Rights Reserved

1-800-372-2447, FAX [phone] (In CANADA: 1-800-553-2448, FAX [phone])
Tel. [phone], FAX [phone]
Tel. [phone], FAX [phone]
Tel. [phone], FAX [phone]

Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)

January 1999
DS99-022LWP Relaces DS98-283LWP