RLG OPTICAL NOISE INJECTOR
Assignee
Rockwell International
Filed as: ROCKWELL INTERNATIONAL CORPORATION,
Filed
Aug 31, 1990
Granted
Dec 29, 1998
Location
LAGUNA NIGUEL CA US
Abstract
An RLG OPTICAL NOISE INJECTOR places a random signal on a PZT driving one mirror controlling the optical path length (OPL) of a ring laser gyro (RLG) and the negative of the signal on a PZT driving a second mirror controlling the OPL. The OPL is therefore maintained constant while injecting random noise into the phase of the counterpropagating beams to avoid dynamic lock-in. Static lock-in may also be avoided by superposing an oscillatory signal on the random signal fed to the first PZT and the negative of the oscillatory signal on the random signal fed to the second PZT.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 2, 1995
Rescinded
Jan 21, 1998
Duration
2 years, 5 months
Inventor
- 1FREDERICK ARONOWITZ
Technology Domains
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Record Details
- Patent number
- US 5854677
- Application
- 07576767
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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