AGERE 269-B-280-14xx-C, 269-B-280-14xx-B, 269-B-280-14xx-A, 269-B-270-14xx-C, 269-B-270-14xx-B Datasheet

269-Type 14xx nm Pump Laser Module
with Fiber Grating

Data Sheet

June 2001

Offering superior wavelength stability, the 269-type pump
laser module with fiber grating is designed as a continuous­wave (CW) optical pump source for erbium-doped fiber ampli­fiers and Raman pump modules.

Features

■

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

■

Available with fiber grating for wavelength stability
(1420 nm—1510 nm)

■

Wide environmental range

■

Field-proven packaging technology

■

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

■

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)

■

Erbium-doped fiber amplifiers (EDFA)

Description

The 269-type pump laser module with fiber grating
represents a family of thermoelectrically cooled,
high-power lasers. These modules utilize a fiber
Bragg grating to 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. The 269-type laser modules with
polarization-maintaining fiber are particularly suitable
for use in RPM designs requiring the high-power
combinations of multiple pumps.

The laser optical spectrum is locked by the fiber grat­ing over a wide optical power range. The optical
spectrum is very narrow and the peak wavelength is
nearly insensitive to temperature variations and back
reflections.

The laser modules incorporate a high-power, quan­tum-well laser chip that achieves grating-stabilized
fiber powers ranging 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 module is offered in a 14-pin, hermetic
butterfly package.

269-Type 14xx nm Pump Laser Module Data Sheet
with Fiber Grating 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 269-Type 14xx nm Pump Laser Module
June 2001 with Fiber Grating

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 – 1.5

—
—

1510

λt + 1.5

nm
nm

RMS Spectral Width ∆λ P

O

——1.5nm

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, O P

EOL — 2.3 3.0 V

Polarization Extinction Ratio PER — 13 — — dB

Table 2. Monitor Photodiode Characteristics

(All test parameters are specified for I

F, OP, 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