Optical switching device including polarization preserving coupl

Details Optical switching device including polarization preserving coupl Optical switching device including polarization preserving coupl

1987-05-28

1988-08-02

Sikes, William L.

Coherent light generators

Particular component circuitry

Optical pumping

350 9616, 350 9618, 350 9629, 350320, 350370, 350374, 372 12, 372 27, G02B 626, H01S 3115

Patent

active

047610506

ABSTRACT:
An optical crossbar switch employs the optical Kerr effect to cause switching of an input signal between two possible outputs. In the absence of a pump signal the output is on one fibre. In the presence of a pump signal the output is on the other fibre. The pump signal serves to produce rotation of the polarization of the input signal in a polarization maintaining coupler, the two possible polarization states being separated by a birefringent crystal or a polarization selective beam splitter.

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