Datasheet 269-D-280-M-14xx-C, 269-D-280-M-14xx-B, 269-D-280-M-14xx-A, 269-D-280-D-14xx-C, 269-D-270-M-14xx-C Datasheet (AGERE)

269-Type 14xx nm DFB Pump Laser Module

Data Sheet

June 2001

The 269-type DFB pump laser module is designed as a
continuous-wave (CW) optical pump source for erbiu m-do ped
fiber amplifiers.

Features

■

Low relative intensity noise (RIN)

■

High-coupled rated output power up to 280 mW,
CW

■

Wide environmental range

■

Field-proven packaging technology

■

InGaAsP/InP high-power, strained multiple quan­tum-well (MQW), distributed-feedback (DFB) laser
chip design

■

Internal optical isolator (optional)

■

Internal thermoelectric cooler (TEC)

■

InGaAs PIN photodetector back-facet monitor

■

Single-mode and polarization-maintaining fiber pig­tails

■

Compact, 14-pin butterfly package

■

Industry compatible package and pinout

Applications

■

Raman pump modules (RPM), copropagating and
counterpropagating

■

Erbium-doped fiber amplifiers (EDFA)

Description

The 269-type DFB pump laser module represen ts a
family of thermoelectrically cooled, high-power
lasers. These devices achieve stable wavelength
performance within the 1420 nm to 1510 nm range,
over the full operating temperature range. They are
designed as continuous-wave (CW) optical pump
sources for dense wavelength-division multiplexing
(DWDM) EDFA and Raman applications operating in
the C- and L-bands.

These new high-power DFB products represent a
breakthrough in 14xx nm pump laser technology by
integrating the beneficial characteristics of an exter­nal FBG laser design (such as stimulated Brillouin
scattering suppression) with the superior relative­intensity noise (RIN) performance of a DFB laser.
The combination of both characteristics is critical to
enable copropagating Raman pumping, which dis­tributes gain over the first few kilometers of the trans­mission fiber. The typical RIN value Agere Systems’
DFB lasers is –158 dB/Hz, a major improvement over
comparable external FBG-stabilized lasers with a
typical RIN of –125 dB/Hz. Integrating wavelength
stabilization into the chip improves the stabilization
over operating temperature and thereby eliminates
the need for an external FBG .

The laser modules incorporate a high-power, quan­tum-well laser chip that achieves fiber powers up to
280 mW.

An integral thermoelectric cooler (TEC) stabilizes the
laser at room temperature and, combined with a her­metic environment, allows the device to achieve
high-power operation over the extended temperature
range of 0 °C to 75 °C. An internal InGaAs PIN pho­todiode, mounted behind the laser diode, functions
as the laser detector and monitors light emissions
from the rear facet of the laser.

The 269-type DFB module is offered in a 14-pin, her­metic butterfly package.

Data Sheet

269-Type 14xx nm DFB Pump Laser Module June 2001

2

Agere Systems Inc.

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 operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.

Handling Precautions

Electrostatic Discharge

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

EIA

*

Standard

EIA

625.

Agere Systems Inc. employs a human-body model (HBM) for ESD-susceptibility testing and protection-design eval­uation. ESD voltage thresholds are dependent on the critical parameters used to define the model. A standard
HBM (resistance = 1.5 kΩ, capacitance = 100 pF) is widely used and, therefore, can be used for comparison pur-
poses. The HBM ESD withstand voltage established for the 269-type laser pump module is ±500 V.

*

EIA

is a registered trademark of The Electronic Industries Association.

Parameter Symbol Min Max Unit

Operating Case Temperature Range T

C

075°C

Storage Case Temperature Range T

stg

–40 85 °C

Laser Forward Bias (TEC on):

P

O

= 120 mW—150 mW

P

O

= 160 mW—210 mW

P

O

= 220 mW—280 mW

I

F

—
—
—

1000
1500
1900

mA
mA
mA

Laser Reverse Voltage V

R

—2V

Photodiode Reverse Voltage V

RMON

—20V

TEC Current I

TEC

—2.2A

TEC Voltage V

TEC

—5.0V

Temperature Sensor Current I

TS

—5mA

Laser Diode Operating Chip Temperature T

LD

—40°C

Data Sheet
June 2001 269-Type 14xx nm DFB Pump Laser Module

3

Agere Systems Inc.

Electrical/Optical Characteristics

Table 1. Electrical/Optical Characteristics

(All performance parameters are specified for I

F, OP

, T

SET

= 25 °C,

T

CASE

~ 25 °C, unless otherwise specified.)

Parameter Symbol Conditions Min Typ Max Unit

Operating Optical Power P

O

— 120 — 280 mW

Wavelength:

Target Wavelength
Center Wavelength

λt

λ

C

—

0 °C—70 °C

1420

λt – 1.0

—
—

1510

λt + 1.0

nm
nm

RMS Spectral Width:

Single Mode
Multimode

∆λ P

O

—
—

1.0

0.2

5.0

0.3

MHz

nm

BOL Operating Laser Forward Current:

P

O

= 120 mW

P

O

= 130 mW

P

O

= 140 mW

P

O

= 150 mW

I

F, OP BOL

—
—
—
—

—
—
—
—

—
—
—
—

550
600
600
600

mA
mA
mA
mA

BOL Operating Laser Forward Current:

P

O

= 160 mW

P

O

= 170 mW

P

O

= 180 mW

P

O

= 190 mW

P

O

= 200 mW

I

F, OP BOL

—
—
—
—
—

—
—
—
—
—

—
—
—
—
—

650
700
700
750
800

mA
mA
mA
mA
mA

BOL Operating Laser Forward Current:

P

O

= 210 mW

P

O

= 220 mW

P

O

= 230 mW

P

O

= 240 mW

P

O

= 250 mW

P

O

= 260 mW

P

O

= 270 mW

P

O

= 280 mW

I

F, OP BOL

—
—
—
—
—
—
—
—

—
—
—
—
—
—
—
—

—
—
—
—
—
—
—
—

850
900

950
1000
1000
1100
1100
1100

mA
mA
mA
mA
mA
mA
mA
mA

EOL Operating Laser Forward Current I

F, OP EOL

———1.15 x

I

F, OP BOL

mA

EOL Laser Diode Forward Voltage V

R

I

F, OP

EOL — 2.3 3.0 V

Module Optical Isolation

(optional feature)

ISO EOL Over

T

CASE RANGE

30 — — dB

Polarization Extinction Ratio PER — 13 — — dB
Relative Intensity Noise RIN P

O

— –158 –150 dB/Hz

Table 2. Monitor Photodiode Characteristics

(All test parameters are specified for I

F, O P, TSET

= 25 °C,

T

CASE

~ 25 °C unless otherwise specified.)

Parameter Symbol Conditions Min Max Unit

Monitor Diode Current I

BF

— 200 2000 µA

Monitor Diode Dark Current

I

D

VR = –5 V, IF = 0 — 100 nA

Data Sheet

269-Type 14xx nm DFB Pump Laser Module June 2001

4

Agere Systems Inc.

Electrical/Optical Characteristics

(continued)

Table 3. TEC and Thermistor Characteristics

(All performance parameters are specified for I

F, OP, TSET

= 25 °C,

unless otherwise specified.)

Parameter Symbol Conditions M in Max Unit

TEC Current:

P

O

= 120 mW

P

O

= 130 mW

P

O

= 140 mW

P

O

= 150 mW

I

TEC

T

SET

= 25 °C;

T

CASE

= 75 °C;

∆T = 50 °C, EOL

—
—
—
—

1.6

1.6

1.6

1.6

A
A
A
A

TEC Current:

P

O

= 160 mW

P

O

= 170 mW

P

O

= 180 mW

P

O

= 190 mW

P

O

= 200 mW

I

TEC

T

SET

= 25 °C;

T

CASE

= 70 °C;

∆T = 45 °C, EOL

—
—
—
—
—

1.7

1.7

1.7

1.7

1.7

A
A
A
A
A

TEC Current:

P

O

= 210 mW

P

O

= 220 mW

P

O

= 230 mW

P

O

= 240 mW

P

O

= 250 mW

P

O

= 260 mW

P

O

= 270 mW

P

O

= 280 mW

I

TEC

T

SET

= 25 °C;

T

CASE

= 65 °C;

∆T = 40 °C, EOL

—
—
—
—
—
—
—
—

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

A
A
A
A
A
A
A
A

TEC Voltage:

P

O

= 120 mW

P

O

= 130 mW

P

O

= 140 mW

P

O

= 150 mW

V

TEC

T

SET

= 25 °C;

T

CASE

= 75 °C;

∆T = 50 °C, EOL

—
—
—
—

3.5

3.5

3.5

3.5

V
V
V
V

TEC Voltage:

P

O

= 160 mW

P

O

= 170 mW

P

O

= 180 mW

P

O

= 190 mW

P

O

= 200 mW

V

TEC

T

SET

= 25 °C;

T

CASE

= 70 °C;

∆T = 45 °C, EOL

—
—
—
—
—

3.7

3.7

3.7

3.7

3.7

V
V
V
V
V

TEC Voltage:

P

O

= 210 mW

P

O

= 220 mW

P

O

= 230 mW

P

O

= 240 mW

P

O

= 250 mW

P

O

= 260 mW

P

O

= 270 mW

P

O

= 280 mW

V

TEC

T

SET

= 25 °C;

T

CASE

= 65 °C;

∆T = 40 °C, EOL

—
—
—
—
—
—
—
—

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

V
V
V
V
V
V
V
V

Thermistor Resistance

R

THERM

25 °C Laser Diode

Set Temperature

9.5 10.5 kΩ

Themistor B Constant B — 3700 4100 K

Data Sheet
June 2001 269-Type 14xx nm DFB Pump Laser Module

5

Agere Systems Inc.

User Information

* A positive input into this pin cools the laser.

Fiber Characteristics

■

Length of fiber pigtail:
— 1.75 m ± 0.25 m

■

Standard fiber:
— Cladding OD: 125 µm ± 2 µm
— Acrylate buffer OD: 250 µm ± 15 µm
— Cut off wavelength: <1320 nm

■

Polarization-maintaining fiber:
— PANDA
— Cut off wavelength: <1400 nm
— Acrylate buffer: 400 µm

Table 4. Pin Information

Pin

Number

Connection

1 TE Cooler (+)*
2 Thermistor
3 Monitor Anode (–Bias)
4 Monitor Cathode (+Bias)
5 Thermistor
6 No Connect
7 No Connect
8 No Connect

9 No Connect
10 Laser Anode (+)
11 Laser Cathode (–)
12 No Connect
13 Package Ground
14 TEC Cooler (–)

Mounting and Connections

CAUTION: This device is susceptible to damage as

a result of electrostatic discharge.
Proper precautions should be taken
during both handling and testing.

The base of the laser module (see Outline Diagram)
should be maintained at or below 75 °C (maximum)
during operation. Interfaces between the laser module
base and heat sink must be clean, and the use of a
thermal filler may be necessary.

Mounting Instructions

The minimum fiber bend radius is 1.0 in.
To avoid degradation in performance, mount the mod-

ule on the board as follows:

1. Place the bottom flange of the module on a flat heat
sink at least 0.5 in. x 1.180 in. (12.7 mm x 30 mm)
in size. The surface finish of the heat sink should be
better than 32 µin. (0.8 µm), and the surface flat­ness must be better than 0.001 in. (25.4 µm). Using
thermal conductive grease is optional; however,
thermal performance may be improved if conductive
grease is applied between the bottom flange and
the heat sink.

2. Mount four #2-56 screws with Fillister heads
(M2-3 mm) at the four screw hole locations (see
Outline Diagram). The Fillister head diameter must
not exceed 0.140 in. (3.55 mm). Do not apply more
than 1 in./lb. of torque to the screws.

Figure 1. Circuit Schematic

1-675 (F).i

7654321

8 9 10 11 12 13

14

TH 10 k

Ω

TEC

ISOLATOR

–

+

+

–

(OPTIONAL)

Data Sheet

269-Type 14xx nm DFB Pump Laser Module June 2001

6

Agere Systems Inc.

Outline Diagram

Dimensions are in inches and (millimeters).

1-1065 (F)a

0.10 (0.25)

0.035
(0.91)

0.078
(1.98)

0.213 (5.40) TYP.

0.350

(8.89)

0.500

(12.70)

0.598

(15.19)

MAX.

1.025

(26.04)

0.020
(0.51)

0.100 (2.54) TYP.

TYP.

PIN 1

0.105 (2.667) DIA.
TYP. (4) PLACES

PIN 14

0.030 (0.76)

0.700

(17.78)

0.347
(8.8)

0.820

(20.83)

0.180
(4.57)

0.175
(4.45)

0.215
(5.46)

1.180

(29.97)

0.078
(1.99)

0.178

(4.52)

0.215 ± 0.10

(5.46 ± 2.54)

0.363
(9.23)

0.334 ± 0.005

(8.49 ± 0.005)

Data Sheet
June 2001 269-Type 14xx nm DFB Pump Laser Module

7

Agere Systems Inc.

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 IIIb laser products per

IEC

* 60825-1:1993. The device has been

classified with the FDA under accession number 8720010.
This product complies with 21 CFR 1040.10 and 1040.11.

8.8 µm/125 µm single-mode fiber pigtail (see Fiber Characteristics, page 5).
Wavelength = 1.40 µm—1.52 µm.
Maximum power = 400 mW.
Because of size constraints, laser safety labeling (including an FDA Class IIIb label) 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

is a registered trademark of The International Electrotechnical Commission.

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: 400 mW Wavelength: 1.40 µm—1.52

µm

Data Sheet

269-Type 14xx nm DFB Pump Laser Module June 2001

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, Alle ntown, PA 18109-3286

1-800-372-2447

, FAX [phone] (In CANADA:

1-800-553-2448

, FAX [phone])

ASIA PACIFIC:Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118 256

Tel. [phone]

, FAX [phone]

CHINA: Agere Systems (Shanghai) Co., Ltd ., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shang ha i 200 12 1 PRC

Tel. [phone]

, FAX [phone]

JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan

Tel. [phone]

, FAX [phone]

EUROPE: Data Requests: DATALINE:

Tel. [phone]

, FAX [phone]

Technical Inquiries: OPTOELECTRONICS MARKETING:

(44) 1344 865 900

(Ascot UK)

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

June 2001
DS01-237OPTO

Ordering Information

Device Code Information

ORDER CODE: X

X

269 – – XX – X – XXXX –
BASIC PART NUMBER
FIBER

A = NONISOLATED, SMF

CONNECTOR OPTIONS
A = NO CONNECTOR

B = NONISOLATED, PMF

B = SC/APC
C = FC/APC

WAVELENGTH
XXXX nm

C = ISOLATED, SMF
D = ISOLATED, PMF

OPERATING POWER
XX0 mW

OPERATING MODE
D = DFB, SINGLE MODE
M = DFB, MULTIMODE