Rapidly tunable integrated laser

Details Rapidly tunable integrated laser Rapidly tunable integrated laser

G - Physics

02

B

G02B 6/34 (2006.01) H01S 5/026 (2006.01) H01S 5/40 (2006.01) H01S 3/18 (1995.01)

Patent

CA 2158599

A monolithically integrated laser which is rapidly tunable over a wide optical frequency range comprises a frequency router formed in a semiconductive wafer defining a tuned cavity. A control circuit applies electrical energy to predetermined controllably transmissive waveguides connecting the frequency routing device with reflective elements defined in the wafer. This tunes the laser to a desired one of a plurality of optical frequencies. Application of such electrical energy creates frequency selective pathways through the wafer able to support selected lasing frequencies. This laser is economical to construct and is useful in high capacity, high speed optical communications networks.

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