Accession Number : AD0519077

Title :   Ring Laser Techniques Investigation. Volume II.

Descriptive Note : Final technical rept. 22 May 70-17 Nov 71,

Corporate Author : AUTONETICS ANAHEIM CALIF

Personal Author(s) : Vescial,F. ; Watson,O. L. ; Zingery,W. L.

Report Date : NOV 1971

Pagination or Media Count : 61

Abstract : Two techniques, both of which use the Faraday bias effect, were investigated for eliminating or reducing the lock-in effect. One technique, dual FM bias, is a passive scheme which uses two ac bias signals which drive the RLG through the lock-in region in such a manner that lock-in does not occur. Dual FM bias is discussed in Volume I. The second bias technique, servo-linearization, uses an active control technique for effectively canceling the internal forcing signals causing lock-in. Servo-linearization, an Autonetics proprietary technique, is the subject of this section. The basic principles of the servo-linearization technique are presented first. Included in this discussion is an enumeration of some of the advantages and disadvantages of the technique. The results obtained from a computer analysis of the servo-linearization technique are given next. The discussion concludes with a presentation of the experimental servo-linearization hardware designed, constructed, and tested.

Descriptors :   (*LASERS, RINGS), (*GYROSCOPES, LASERS), LINEAR SYSTEMS, MAGNETIC FIELDS, PHASE SHIFT CIRCUITS, COMPARATORS, GAIN, SIMULATION, NETWORKS, FEEDBACK, SENSITIVITY, INERTIAL GUIDANCE, INERTIAL NAVIGATION (U) MAGNETOOPTICS, SERVOMECHANISMS, FREQUENCY MODULATION

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE