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US 6,388,534 B1Granted
Laser controlled crystal and dielectric resonator oscillators
OwnerAlfiero Balzano, Armando Benavides +1inventors
InventorsAlfiero Balzano, Armando Benavides, Carl Peterson
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Abstract
A crystal oscillator including a laser light source for emitting a laser beam to an aligned quartz crystal coupled to an oscillator circuit by an optical feedback network. The optical feedback network is responsive to variations of misalignment of the laser beam with the crystal and correction signals generated for introduction back to the crystal to bring its frequency back to a constant standard frequency output.
Claims13
A crystal oscillator comprising:
- a laser light source for emitting a laser beam;
- a quartz crystal disposed in alignment with said laser light source for receiving said laser beam;
- an oscillator circuit coupled to said quartz crystal and having a controlled frequency output;
- and
- an optical loop means interconnecting said oscillator circuit with said quartz crystal whereby variation in displacement of said laser beam from alignment with said quartz crystal is reflected in change of said output frequency of said oscillator circuit.
2 more elements
A laser controlled crystal oscillator comprising:
- a laser light source emitting a laser beam;
- a quartz crystal disposed in alignment with said laser light source for receiving said laser beam;
- an oscillator circuit coupled to said quartz crystal and having a variable frequency output responsive to variations in displacement of said laser beam from alignment with said quartz crystal;
- and
- said oscillator circuit providing feedback correction signals for modifying frequency output of said quartz crystal in response to variations of misalignment of said laser beam with said quartz crystal.
2 more elements
Dependencies are inferred from the claim text.