H. Bissessur et al., POLARIZATION-INDEPENDENT PHASED-ARRAY DEMULTIPLEXER ON INP WITH HIGH FABRICATION TOLERANCE, Electronics Letters, 31(16), 1995, pp. 1372-1373
A polarisation independent 1 x 4 phased-array wavelength demultiplexer
is demonstrated using 1.1 mu m quaternary ridge waveguides. The avera
ge crosstalk is 14 dB for a 2 nm channel spacing. Zero birefringence i
s obtained around 1,55 mu m and about 0.05 nm birefringence is obtaine
d around 1.31 mu m.