CAVITY LENGTH CONTROL APPARATUS FOR A MULTI-OSCILLATOR
Assignee
Litton Systems
Filed as: LITTON SYSTEMS, INC., A CORP. OF DE
Filed
Mar 14, 1988
Granted
Oct 16, 1990
Location
NORTH HOLLYWOOD CA US
Abstract
An apparatus and method for controlling the length of a multioscillator cavity. A photodiode mixes a pair of beams rotating in the same direction, one of said beams being substantially left circularly polarized, and the other beam being substantially right circularly polarized. A local oscillator causes the mixed beams to be modulated. An amplitude demodulator demodulates the modulated beams. An error detecting device responds to the amplitude demodulators, and an active integrator integrates the detected error. A piezotransducer responds to the output of the integrator for controlling the length of the multioscillator cavity.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 18, 1989
Rescinded
Feb 15, 1989
Duration
28 days
Inventor
- 1TAE W. HAHN
Technology Domains
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Record Details
- Patent number
- US 4963026
- Application
- 07167512
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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