Optical transmitting and receiving system having polarization di

Details Optical transmitting and receiving system having polarization di Optical transmitting and receiving system having polarization di

1992-02-06

1994-07-05

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359152, 359192, H04B 1000, H04B 1006

Patent

active

053272781

ABSTRACT:
An optical transmitting and receiving system for connection to an optical bidirectional transmission path comprises a transmitter and a pair of coherent receivers sharing a local oscillator. The transmitter and receiver and connected to the transmission path via a hybrid circuit. The hybrid circuit is provided with a first polarisation splitter, a nonreciprocal polarisation rotator and a second polarisation splitter. A connection of the first polarisation splitter and a connection of the second polarisation splitter form, respectively, the input connection for the transmitter and the bidirectional connection of the hybrid circuit. The input and output of the nonreciprocal polarisation rotator are connected between the first and second polarisation splitters. The receivers are connected to separate outputs of the polarisation splitters.

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patent: 5152597 (1992-10-01), Barnard
patent: 5247382 (1993-09-01), Suzuki

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