Optical filter

Details Optical filter Optical filter

2006-06-13

2006-06-13

Kang, Juliana (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling function

Reexamination Certificate

active

07062124

ABSTRACT:
An optical filter (100) comprises a multimode waveguide (126) and first (122) and second (124) coupling waveguides which communicate with lateral sides of the multimode waveguide. The filter operates by reproducing an optical field distribution input to the multimode waveguide via one of the coupling waveguides at the position in the multimode waveguide where the other coupling waveguide communicates with the multimode waveguide. This occurs for radiation of a wavelength to be filtered but not for radiation of other wavelengths.

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patent: 58-068713 (1983-04-01), None
Paiam et al, Compact Planar 980/1550-nm Wavelength Multi/Demultiplexer Based on Multimode Interference, Oct. 1995, IEEE PHotonics Technology Letters, vol. 7, No. 10, pp. 1180-1182.

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