Lucent / agere CW Tunable, Wavelength-Stabilized Laser Module. XC488 (CW20P)

Offering multiple channel selections and SONET/SDH compatibility, the CW20P-Type CW DBR Laser Module is manufactured in a 24-pin metallic DIP with a polarization-maintaining fiber (PMF) pigtail.

Features

n Tunable up to twenty ITU-T 50 GHz channels

n For use with lithium niobate modulators

n Integrated Etalon stabilizer —Replaces external wavelength lockers

n 1528.77 nm to 1610.0 nm wavelengths

n Compact design

n Remote programmability

n Asynchronous serial interface for module communication

n High output power, up to 20 mW

n Low profile, 24-pin package

n Laser bias monitor alarm

n Module enable/disable input

Applications

n SONET/SDH extended-reach

n Long-haul, very dense, wave-division multiplexing (DWDM)

n High-speed data communication

n Flexible wavelength systems

Description

The CW20P-type laser modules are designed for use in transmission systems and high-speed data communication applications. The device supports 20 wavelengths. The module uses an RS-232 interface to adjust various module functions such as wavelength. In addition, the interface provides accessibility to the alarm and monitor outputs.

The modules meet all present Telcordia Technologies* GR-253-CORE requirements and the ITU-T G.957 and G.958 recommendations. The modules are also suited for extended distance data and networking applications when used in conjunction with a lithium niobate modulator.

The CW20P uses a 1.5 mm distributed Bragg reflector (DBR) laser with an integrated wavelength stabilizer. By integrating the wavelength stabilizer with the DBR laser chip, the device offers a compact, costeffective solution for low-dispersion transmission. Devices are provided at wavelengths that are compatible with the ITU-T wavelength standards at 200 GHz, 100 GHz, and 50 GHz. The package also contains a thermoelectric cooler, thermistor, backfacet monitor, and optical isolator. The laser module requires 5 V, �5.2 V, and 3.3 V.