In this presentation a wavelength selective single mode optical switching matrix is reported. The matrix design comprises the use of low loss all-fibre wavelength selective couplers, switches and multiplexers. The matrix is primarily intended for use as a switched wavelength division demultiplexer operating at 1.30 μm and 1.53 μm wavelengths and exhibits insertion losses per path of less than 1 dB.
S. P. Shipley,
A. El Fatatry,
"A Wavelength Selective All Fibre Switching Matrix", Proc. SPIE 0800, Novel Optoelectronic Devices, (22 September 1987); doi: 10.1117/12.941197; https://doi.org/10.1117/12.941197