Finisar Integrated 43Gbs DPSK Receiver Module U2T IDRV2242A Delay Line Interferometer

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