Compact integrated polarisation-independent optical crossconnect

Abstract

An extremely compact integrated polarisation independent optical crossconnect is reported. The device can crossconnect signals at four wavelength independently from two input fibres to two output fibres. Total on-chip loss is less than 16 dB, crosstalk is better than -16 dB. Device size is 6/spl times/6 mm/sup 2/. An improvement in performance compared to an earlier reported device has been achieved by using an optimised concept.