Optical waveguides – Optical waveguide sensor
Patent
1995-05-02
1996-12-03
Healy, Brian
Optical waveguides
Optical waveguide sensor
385 11, 385 15, 385 24, 385 31, 385 42, 385 43, 385 46, 385 89, G02B 600
Patent
active
055816410
ABSTRACT:
A coherent detector which is insensitive to signal or polarization state may be assembled using a fused optical fibre multiport constructed from five optical fibres. The fibres are fused in a circularly symmetric arrangement, then tapered until power injected into any input is equally distributed to all outputs. Reference signals are injected into adjacent inputs and the signal to be detected into a signal adjacent one of the reference inputs.
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Carroll John E.
Travis Adrian R. L.
Ceorl Limited
Healy Brian
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