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

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

1996-09-04

1998-03-31

Sikes, William L.

Optical waveguides

Polarization without modulation

359485, 359497, G02B 530, G02B 600

Patent

active

057347638

ABSTRACT:
The optical component 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 first opposed walk-off crystal pair and a second opposed walk-off crystal pair. The second opposed walk-off crystal pair is a mirror image of the first opposed walk-off crystal pair. Each opposed walk-off crystal pair comprises two walk-off crystals. Each walk-off crystal has a walk-off direction. Each walk-off crystal includes an attachment face substantially parallel to the walk-off direction, a first face orthogonal to the attachment faces, and a second face opposite the first face. The walk-off crystals are attached to one another with their attachment faces in contact, and their walk-off directions opposed. The opposed walk-off directions of the walk-off crystals of the first opposed walk-off crystal pair and the opposed walk-off directions of the walk-off crystals of the second opposed walk-off crystal pair define opposite rotational directions. The opposed walk-off crystal pairs are attached to one another with the second face of one in contact of the first face of the other, and with the walk-off direction of the one orthogonal to the walk-off direction of the other.

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Shinkosha, Isolator Revolution, ISO-SPI Data Sheet no date.

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