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Optical isolation by orthogonal polarization

: Helmolt, C.H. von

Institute of Electrical and Electronics Engineers -IEEE-; Institution of Electrical Engineers -IEE-, London:
ECOC 87. 13th European Conference on Optical Communication. Technical Digest. Vol.1 : Helsinki, Finland, 13-17 Sept 1987
Helsinki, 1987
European Conference on Optical Communication (ECOC) <13, 1987, Helsinki>
Fraunhofer HHI ()
integrated optics; light polarisation; optical communication equipment; optical waveguides; semiconductor junction lasers; optical isolation; orthogonal polarization; quarter wave plate principle; local oscillator laser; integrated optical heterodyne receiver; laser diode butt; linbo3:ti

Generalizing the quarter wave plate principle, for example, the local oscillator laser of an integrated optical heterodyne receiver can be isolated. Isolation of approximately 20 dB is experimentally obtained for a laser diode butt coupled to a Ti:LiNbO3 waveguide.