Resonant filter for wavelength division multiplexing optical...

Details Resonant filter for wavelength division multiplexing optical... Resonant filter for wavelength division multiplexing optical...

G - Physics

02

B

G02B 5/20 (2006.01) G02B 5/28 (2006.01) G02B 6/12 (2006.01)

Patent

CA 2138108

In an integrated resonant cavity optical filter, the resonant cavity is obtained with optical waveguide sections making up two facing Y-shaped couplers joined at the ends of the arms of the Y's. The arms of the Y's are single-mode waveguide sections, while the legs of the Y's are two-mode waveguide sections, made reflecting at their free ends, having such a length that the radiation to be selected entering one of the two-mode sections from one of the single-mode sections passes from the same two-mode section, upon reflection at the end, to the other single-mode section of cavity. (Fig.1)

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