High speed and polarisation insensitive interferometric wavelength converters by MQW optimisation

Amongst various types of wavelength converters presently investigated, interferometric wavelength converters have shown most enormous progress in the recent period /l/. Availability of these devices is strongly demanded for optical routing and switching demonstrators as well as for WDM experiments. System requirements such as polarisation insensitivity and high speed wavelength conversion up to 1 O Gb/s are crucial for success of these components.