Data Sheet
June 2001
269-Type 1480 nm Pump Laser Module
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.
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
Wide environmental range
Field-proven packaging technology
InGaAsP/InP high-power, strained multiple quan-
tum-well (MQW) chip design
Internal optical isolator (optional)
Internal thermoelectric cooler (TEC)
InGaAs PIN photodetector back-facet monitor
Single-mode and polarization-maintaining fiber pig-
tails
Compact, 14-pin butterfly package
Industry compatible package and pinout
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AGERE [ AGERE SYSTEMS ]
