the integrated DPSK receiver module IDRV consists of a balanced photoreceiver and an integrated delay-line interferometer (DLI). the IDRV is a differential front-end for 43 Gbit/s DPSK-applications featuring high differential gain of typically 1500 V/W. the two output ports of a phase-tunable DLI are coupled into two single chip waveguide-integrated pin-photodiodes (PD). Signal gain is obtained using a differential amplifi er with limiting output stage. the limiting amplifi er produces a typical differential output voltage swing of 550 mV. the receiver is therefore well suited for phase modulated OC-768/STM-256 system operation.

Features

• Balanced receiver integrated with an optical delay-line interferometer (DLI)
• Athermal DLI design, very low skew
• Input power monitor
• FSR of 21.5, 43, 50 or 67 GHz
• Peak level detector
• Optional: fixed attenuation in the constructive arm

Applications

• 43G DPSK communication systems
• Transponder and line card designs, repairs.