Integrated optic tunable filters and their methods of fabricatio

Details Integrated optic tunable filters and their methods of fabricatio Integrated optic tunable filters and their methods of fabricatio

1997-05-16

1999-03-30

Healy, Brian

Optical waveguides

Polarization without modulation

385 3, 385 14, 385 24, 385 27, 385 31, 359115, 359122, G02B 600, H04J 1406

Patent

active

058899006

ABSTRACT:
Integrated optic tunable filters (IOTF) which for operation in many different wavelength ranges with different spectral properties. The IOTFs have one or more stages and/or channels formed in birefringent substrates and operate via polarization interferometric effects. Manufacture is via the use of variants of well-known processes used for making high speed integrated optic modulators. The IOTFs are for use in fiber-optic systems, although they can also be implemented in optic systems which are not fiber-optic. Other applications include wavelength division multiplexing, spectral analysis, and source output conditioning. Filtering may be active through the use of externally applied heat, stress, or electric fields.

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