G - Physics – 02 – F
Patent
G - Physics
02
F
325/1, 26/197, 3
G02F 1/11 (2006.01) G02B 6/28 (2006.01) G02B 26/00 (2006.01) G02F 1/01 (2006.01)
Patent
CA 1257925
ACOUSTO-OPTIC FREQUENCY SHIFTER Abstract of the nvention A fiber optic frequency shifter comprises an optical fiber having two propagation modes and an acoustic transducer for generating an acoustic wave. The transducer is positioned re-lative to the fiber to cause the wave fronts of the acoustic wave to acoustically contact the fiber at an angle of incidence (.THETA.) which is less than 90° greater than 0°. Preferably, the wavelength of the acoustic wave is substantially equal to the beat length of the fiber times the sine of the angle of incidence (.THETA.).
474395
Kino Gordon S.
Risk William P.
Shaw Herbert J.
Youngquist Robert C.
Board Of Trustees Of The Leland Stanford Junior University
Gowling Lafleur Henderson Llp
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