269-Type 1480 nm Pump Laser Module

Data Sheet

June 2001

The 269-type pump laser module is designed as a continuous-

wave (CW) optical pump source for erbium-doped fiber ampli-

fiers.

Features

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High-coupled rated output power up to 280 mW,

CW

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Wide environmental range

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Field-proven packaging technology

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InGaAsP/InP high-power, strained multiple quan-

tum-well (MQW) chip design

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Internal optical isolator (optional)

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Internal thermoelectric cooler (TEC)

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InGaAs PIN photodetector back-facet monitor

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Single-mode and polarization-maintaining fiber pig-

tails

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Compact, 14-pin butterfly package

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Industry compatible package and pinout

Applications

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Erbium-doped fiber amplifiers (EDFA)

Description

The 269-type pump laser module represents a family

of thermoelectrically cooled, high-power lasers. They

are designed as continuous-wave (CW) optical pump

sources for dense wavelength-division multiplexing

(DWDM) EDFA applications.

The laser modules incorporate a high-power, quan-

tum-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 her-

metic environment, allows the device to achieve

high-power operation over the extended temperature

range of 0 °C to 75 °C. An internal InGaAs PIN pho-

todiode, 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.