LOW CROSSTALK MONOLITHIC WAVELENGTH DEMULTIPLEXING SWITCH ARRAYS

Wavelength Division Multiplexing (WDM) is a key enabling technology fo r increasing the transmission capacity of optical fiber communication systems. Recently, a new family of optoelectronic devices, including d etectors, switches, and emitters, that is based on resonant cavity enh ancement, has emerged. Wavelength selective optoelectronic switching i s achieved by placing a photothyristor in an asymmetric Fabry-Perot ca vity, which provides a highly selective response at a wavelength deter mined during device fabrication. These WDM optoelectronic devices have promising applications in optical communications and optical logic ci rcuits. Results on a N-p-n-p optoelectronic switch with a ten waveleng th channel capability are presented.