Overmoded Fibre For Multiport Coherent Detection

R. E. Epwor th; A. R . L . Travis; I. H. White

doi:10.1117/12.938002

17 September 1987 Overmoded Fibre For Multiport Coherent Detection

R. E. Epwor th, A. R . L . Travis, I. H. White

Proceedings Volume 0734, Fibre Optics '87; (1987) https://doi.org/10.1117/12.938002
Event: Sira/Fibre Optics '87, 1987, London, United Kingdom

Abstract

Combining appropriate zero-order and first-order fields in an overmoded optical fibre, produces an offset intensity distribution whose radial position varies with their relative phase and polarization. This may be used to achieve phase (or polarization) diversity detection in a coherent optical receiver, by detection of this intensity distribution on a four segment photodetector. In-phase and Quadrature signals (or orthogonally polarized signals) are produced from each diametrically opposed pair of photodiode segments.

Citation Download Citation

R. E. Epwor th, A. R . L . Travis, and I. H. White "Overmoded Fibre For Multiport Coherent Detection", Proc. SPIE 0734, Fibre Optics '87, (17 September 1987); https://doi.org/10.1117/12.938002

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