Datasheet D374-02A, D374-10F, D374-10A, D374-02N, D374-02F Datasheet (AGERE)

Data Sheet

December 2000

D374-Type Digital Uncooled 2.5 Gbits/s
Laser Module

Applications

■

Short-reach SONET OC-48 systems

■

SDH STM-16 systems

■

Telecommunications

■

Secure digital data systems

The low-profile D374-Type Laser Module is ideally suited for
short- and long-reach SONET and other high-speed digital
applications.

Features

2.5 Gbits/s operation

■

Eight-pin package suitable for SONET/SDH appli-

■

cations
MQW F-P 1.3 µ m laser with single-mode fiber pig-

■

tail
Wide operating temperature range:

■

–40 ° C to +85 ° C
No TEC required

■

25 Ω input impedance

■

Benefits

■

Easily board mounted

■

Gull wing leads

■

No additional heat sinks required

Description

The D374-T ype 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
short-reach and other high-speed digital applica­tions. It is developed specifically for 2.5 Gbits/s 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.

High output power: typically 1.0 mW peak power

■

coupled into single-mode fiber; 0.2 mW versions
available

Hermetically sealed active components

■

Internal back-facet monitor

■

Qualification program:

■

Telcordia Technologies

983

*

T elcordia Technologies

Technologies, Inc.

is a registered trademark of Telcordia

* TA-

±

°

°

Data Sheet

D374-Type Digital Uncooled 2.5 Gbits/s Laser Module December 2000

Description

(continued)

The device characteristics listed in this document are
met at 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 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 tight prod­uct distributions on all optical subassemblies. This 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

4

3

and uncontrolled environments, and can be used for
applications requiring high performance and low cost.

Table 1. Pin Descriptions

Pin Number Connection

1 NC/reserved
2 Case ground
3 NC/reserved
4 PD cathode
5 PD anode
6 Laser diode anode (+)
7 Laser RF input cathode (–), 25 Ω
8 Laser diode anode (+)

12

56 87

1-900

Figure 1. D374-Type Digital Uncooled 2.5 Gbits/s 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

P

I

V
V

OP
MAX

RL
RD

FD

C

stg

—
—

—
—

150

10

2

20

mA

mW

V
V

—2mA
–40 85
–40 85

C
C

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 %

* Rating varies with temperature.

22

Agere Systems Inc.

°

∆λ

±

Ω

µ

Data Sheet
December 2000 D374-Type Digital Uncooled 2.5 Gbits/s 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.

Electrical/Optical Characteristics

Table 2. Electrical/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
RMS Spectral Width
Tracking Error TE I
Spontaneous Emission P
Rise/Fall Times t

Forward Voltage V
Input Impedance R — — 25 —
Monitor Current I
Monitor Dark Current I
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.

‡V

= reverse voltage.

R

T — –40 — 85

F

TH

MOD

CW, P

CW, nominal — 1 — mW

T = 25 ° C

T = full range

F

= 1.0 mW, T = 25 ° C

MON

CW, I

= constant,

4.5
1

10

8

9

—
15

—

15
45

20
35

C

mA
mA

mA
mA

T = full range

SE CW, P

λ

C

TH

, t

R

F

= 1.0 mW, T = 25 ° C 50 75 100 µ W/mA

F

P

= 1.0 mW, CW 1270 — 1350 nm

F

P

= 1.0 mW, 155 Mbits/s — 2 3 nm

F

= constant, CW — 0.5

MON

I = (0.9) I

TH

10%—90% pulse

——50
— 0.125 0.150 ns

1dB

µ

W

T = 25 ° C

F

MON

D

At bias coil — 1.1 1.6 V

‡

V

R

= 5 V 150 — 750

‡

V

R

= 5 V — 10 200 nA

A

— — — 0.4 0.5 nm/ ° C

Agere Systems Inc.

3

Data Sheet

D374-Type Digital Uncooled 2.5 Gbits/s Laser Module December 2000

Characteristic Curve

3.0

L/I CURVE

2.0

FORWARD LASER

1.0

LASER POWER (mW)

MONITOR DIODE
CURRENT

0

0 25 50 150

LASER CURRENT (mA)

VOLTAGE

75 100 125

TEMP = 25

o

C

2500

2000

1500

1000

500

0

CURRENT (µA)

VOLTAGE (mV)

VOLTAGE (mV)

CURRENT (µA)

1-884 (C)

Figure 2. Typical D374-Type Laser Module L/I Curve

Qualification Information

The D374-Type Laser Module has completed and passed the following qualification tests and meets the intent of

Telcordia Technologies

ments.

TR-NWT-000468 for interoffice environments and TA-TSY-000983 for outside plant environ-

Table 3. D374-Type Laser Module Qualification Test Plan

Qualification Test Conditions Sample Size Reference

Mechanical Shock
Vibration
Solderability
Thermal Shock
Fiber Pull
Accelerated (biased) Aging

High-temperature Storage
Temperature Cycling

Cyclic Moisture Resistance

Damp Heat

20 g, 20 Hz—2,000 Hz

500 G

—

Delta T = 100 ° C

1 kg; 3 times

85 ° C, 5,000 hrs.

85 ° C, 2,000 hrs.

500 cycles

10 cycles

40 ° C, 95% RH,

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 Bellcore 983
25

11
11

11

Telcordia Technologies

Telcordia Technologies

Telcordia Technologies

Telcordia Technologies

11 MIL-STD-202, Method 103

1344 hrs.

Internal Moisture
Flammability
ESD Threshold

<5,000 ppm water vapor

—
—

11 MIL-STD-883, Method 1018
— TR357, Section 4.4.2.5

6

Telcordia Technologies

983,

Section 5.18

983

983,

Section 5.20

983,

Section 5.23

983,

Section 5.22

4

Agere Systems Inc.

Data Sheet
December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module

Outline Diagram

Dimensions are in inches and (millimeters).

0.300 (7.62)

0.100 (2.54)
TRADEMARK, CODE, LASER SERIAL NUMBER,

0.169 (4.30)

0.29 (7.37)

AND/OR DATE CODE IN APPROXIMATE AREA SHOWN

0.169 (4.30)

0.20 (5.00)

0.02 (0.50)

0.52 (13.21)

1.06 (27.0)
MIN

39.37 (1000) MIN

(PIGTAIL LENGTH)

0.045 (1.143)

0.17

(4.32)

1.925.e

Agere Systems Inc.

5

Data Sheet

D374-Type Digital Uncooled 2.5 Gbits/s Laser Module December 2000

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

*

IEC

is a registered trademark of The International Electrotechnical Commission.

6

Agere Systems Inc.

Data Sheet
December 2000 D374-Type Digital Uncooled 2.5 Gbits/s Laser Module

Ordering Information

Table 4. Ordering Information

Code Comcode Pfiber Connector

D374-10A 108200601 1.0 mW SC-PC
D374-10F 108226911 1.0 mW FC-PC
D374-02A 108321456 0.2 mW SC-PC
D374-02F 108321464 0.2 mW FC-PC
D374-02N 108320144 0.2 mW None

Agere Systems Inc.

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Data Sheet

D374-Type Digital Uncooled 2.5 Gbits/s Laser Module December 2000

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)

December 2000
DS99-010LWP-1 (Replaces DS99-010LWP)