E. Jahn et al., MONOLITHICALLY INTEGRATED NONLINEAR SAGNAC INTERFEROMETER AND ITS APPLICATION AS A 20GBIT S ALL-OPTICAL DEMULTIPLEXER/, Electronics Letters, 32(9), 1996, pp. 782-784
A Sagnac interferometer consisting of a semiconductor laser amplifier
and a 3dB coupler monolithically integrated within a waveguide loop mi
rror is fabricated and its application as a 20Gbit/s all-optical demul
tiplexer is demonstrated.