17 September 1987 Overmoded Fibre For Multiport Coherent Detection
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Proceedings Volume 0734, Fibre Optics '87; (1987) https://doi.org/10.1117/12.938002
Event: Sira/Fibre Optics '87, 1987, London, United Kingdom
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.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. E. Epwor th, A. R . L . Travis, I. H. White, "Overmoded Fibre For Multiport Coherent Detection", Proc. SPIE 0734, Fibre Optics '87, (17 September 1987); doi: 10.1117/12.938002; https://doi.org/10.1117/12.938002

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