Description

The transmitter module is intended for use at SDH and SONET bit rates. The device meets the intention of the ITU-T (G.691) recommendations.

The single silicon IC is used as a laser driver, modulator and automatic power control. To ensure a proper laser operation over the wide temperature range and life of operation, the average optical output power is controlled. The laser bias is externally accessible for monitoring of the performance. A power alarm is activated when the average optical power cannot be maintained within specification. A laser shut-down is also provided according to SDH/ SONET requirements.

Key Features

• Provides 1620 nm supervisory channel laser source for WDM applications according to ITU-T draft G.691

• Average power control

• Small size (40x70x9 mm)

• CMOS alarm output

• Thermoelectric cooler included

• P-ECL data inputs

• Tone modulation input

• Single 5.0 V supply

Applications

• 1620 nm supervisory channel applications in WDM systems