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Proceedings Paper

Overmoded Fibre For Multiport Coherent Detection
Author(s): R. E. Epwor th; A. R . L . Travis; I. H. White
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Paper 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.

Paper Details

Date Published: 17 September 1987
PDF: 11 pages
Proc. SPIE 0734, Fibre Optics '87, (17 September 1987); doi: 10.1117/12.938002
Show Author Affiliations
R. E. Epwor th, STC Technology LTD (United Kingdom)
A. R . L . Travis, Cambridge University (United Kingdom)
I. H. White, Cambridge University (United Kingdom)


Published in SPIE Proceedings Vol. 0734:
Fibre Optics '87
Lionel R. Baker, Editor(s)

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