Optical phase modulator with asymmetric piezoelectric vibrator
First Claim
1. An optical phase modulator comprising:
- a piezoelectric vibrator which is asymmetric in at least one cross-sectional shape thereof;
a pair of electrodes for applying a voltage to said piezoelectric vibrator, said electrodes being attached to said piezoelectric vibrator; and
an optical fiber joined to at least a portion of said piezoelectric vibrator.
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Accused Products
Abstract
An optical phase modulator for use with a fiber optic sensor such as a fiber optic gyroscope includes a piezoelectric vibrator which is asymmetric in at least one cross-sectional shape thereof, a pair of electrodes for applying a voltage to said piezoelectric vibrator, and an optical fiber joined to at least a portion of said piezoelectric vibrator by adhesive bonding. The piezoelectric vibrator has a cavity defined therein, and one of said electrodes is disposed on a surface of said piezoelectric vibrator which defines said axial cavity, the other electrode being disposed on an outer surface of said piezoelectric vibrator. The piezoelectric vibrator may be cylindrical, elliptically cylindrical, or planar in shape. The cavity may be cylindrical or elliptically cylindrical in shape.
23 Citations
18 Claims
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1. An optical phase modulator comprising:
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a piezoelectric vibrator which is asymmetric in at least one cross-sectional shape thereof; a pair of electrodes for applying a voltage to said piezoelectric vibrator, said electrodes being attached to said piezoelectric vibrator; and an optical fiber joined to at least a portion of said piezoelectric vibrator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification