Compact two-by-n optical components based on birefringent walk-o

Details Compact two-by-n optical components based on birefringent walk-o Compact two-by-n optical components based on birefringent walk-o

1997-11-26

1999-10-26

Sikes, William L.

Optical waveguides

Polarization without modulation

359485, 359497, G02B 600, G02B 530

Patent

active

059742054

ABSTRACT:
A compact, 2.times.n(n=1 or 2), polarization-independent optical component that comprises a first I/O port, a second I/O port and a polarization-changing optical element located between the first I/O port and the second I/O port. The second I/O port is optically aligned with the first I/O port. The first I/O port includes a serial arrangement of a first opposed walk-off crystal pair and a second opposed walk-off crystal pair, each opposed walk-off crystal pair comprising two walk-off crystals having opposite walk-off directions, the walk-off directions of the walk-off crystals of the first opposed walk-off crystal pair defining a first direction of rotation, the walk-off directions of the walk-off crystals of the second opposed walk-off crystal pair defining a second rotational direction, opposite to the first rotational direction.

REFERENCES:
patent: 5734763 (1998-03-01), Chang

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