Integrated acousto-optic filters and switches

Details Integrated acousto-optic filters and switches Integrated acousto-optic filters and switches

G - Physics

02

F

88/117, 88/121,

G02F 1/125 (2006.01) G02F 1/01 (2006.01) G02F 1/335 (2006.01)

Patent

CA 2004998

Abstract of the Disclosure An acousto-optic converter fabricated on x-cut LiNbO3 and having an optical waveguide extending along the y-direction. AD interdigital transducer is oriented at 5° with respect to the y-direction in order to compensate for the acoustic walk-off on such an orientation. Such an integrated acousto-optic converter allows multiple stages of such converters so as to provide for (1) two-stage zero-frequency shifted converters and filters, (2) lasers using an acousto-optic filter as a tuning element, (3) polarization-independent converters in which the modes are divided, separately polarization converted, and recombined according to frequency, (4) and wavelength division multiplexing routing switches capable of simultaneously switching multiple channels.

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