Birefringent optical wavelength multiplexer/demultiplexer

G - Physics – 02 – B

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88/97.4

G02B 6/34 (2006.01) H04J 99/00 (2009.01) G02B 6/10 (2006.01) G02B 6/28 (2006.01) G02B 27/28 (2006.01)

Patent

CA 1255135

BIREFRINGENT OPTICAL WAVELENGTH MULTIPLEXER/DEMULTIPLEXER Abstract of the Disclosure An optical multiplexer/demultiplexer provides for arbitrarily closely spaced wavelength channels, the spacing and locations thereof being determined by the thickness of birefringent crystals such as, for example, quartz. Such a device can also be used for duplexing bidirectional signals. Methods for mechanically tuning the devices to given laser wavelengths are described, as well as simplified constructions which can be used with polarized light sources such as lasers.

489867

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