Advance Data Sheet, Rev. 1
June 2001
CW20P-Type
CW Tunable, Wavelength-Stabilized Laser Module
Applications
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SONET/SDH extended-reach
Long-haul, very dense, wave-division multiplexing
(DWDM)
High-speed data communication
Flexible wavelength systems
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Description
The CW20P-type laser modules are designed for use
in transmission systems and high-speed data com-
munication applications. The device supports
20 wavelengths. The module uses an RS-232 inter-
face to adjust various module functions such as
wavelength. In addition, the interface provides acces-
sibility to the alarm and monitor outputs.
The modules meet all present
Telcordia Technolo-
gies*
GR-253-CORE requirements and the ITU-T
G.957 and G.958 recommendations. The modules
are also suited for extended distance data and net-
working applications when used in conjunction with a
lithium niobate modulator.
The CW20P uses a 1.5
µm
distributed Bragg reflec-
tor (DBR) laser with an integrated wavelength stabi-
lizer. By integrating the wavelength stabilizer with the
DBR laser chip, the device offers a compact, cost-
effective solution for low-dispersion transmission.
Devices are provided at wavelengths that are com-
patible with the ITU-T wavelength standards at
200 GHz, 100 GHz, and 50 GHz. The package also
contains a thermoelectric cooler, thermistor, back-
facet monitor, and optical isolator. The laser module
requires 5 V, –5.2 V, and 3.3 V.
Offering multiple channel selections and SONET/SDH compat-
ibility, the CW20P-Type CW DBR Laser Module is manufac-
tured in a 24-pin metallic DIP with a polarization-maintaining
fiber (PMF) pigtail.
Features
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Tunable up to twenty ITU-T 50 GHz channels
For use with lithium niobate modulators
Integrated Etalon stabilizer
—Replaces external wavelength lockers
1528.77 nm to 1610.0 nm wavelengths
Compact design
Remote programmability
Asynchronous serial interface for module communi-
cation
High output power, up to 20 mW
Low profile, 24-pin package
Laser bias monitor alarm
Module enable/disable input
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*
Telcordia Technologies
is a trademark of Telcordia Technologies,
Inc.
AGERE [ AGERE SYSTEMS ]
