CW20P-Type

CW Tunable, Wavelength-Stabilized Laser Module

Advance Data Sheet, Rev. 1

June 2001

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

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For use with lithium niobate modulators

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Integrated Etalon stabilizer

—Replaces external wavelength lockers

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1528.77 nm to 1610.0 nm wavelengths

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Compact design

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Remote programmability

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Asynchronous serial interface for module communi-

cation

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High output power, up to 20 mW

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Low profile, 24-pin package

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Laser bias monitor alarm

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Module enable/disable input

Applications

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SONET/SDH extended-reach

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Long-haul, very dense, wave-division multiplexing

(DWDM)

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High-speed data communication

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Flexible wavelength systems

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-

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.

*

Inc.