POLARISATION-INDEPENDENT ELECTRO-OPTICALLY TUNABLE WAVELENGTH FILTER IN LITAO3

Polarisation-independent electro-optically tunable wavelength filter using passive polarisation splitters and strain-induced polarisation mode conversion in LiTaO/sub 3/ is demonstrated. Tuning of the centre wavelength from 655 to 692 nm is realised. An optical bandwidth (FWHM) of 11 nm and a tuning rate of 0.4 nm/V are obtained. >