16-channel monolithically integrated InP-based p-i-n/HBT photoreceiver array with 11-GHz channel bandwidth and low cross talk

High-performance multichannel detection systems are required for wavelength-division multiplexed (WDM) communication systems. In the present work, we report a 16-channel InAlAs-InGaAs optoelectronic integrated circuits (OEIC) photoreceiver array with an average channel bandwidth of 11 GHz. To our knowledge, the fabricated array is the largest in size and exhibits the highest bandwidth per channel and lowest cross talk for any monolithic photoreceiver array for WDM applications.