Path length control system for magnetic mirror dithered ring las

Details Path length control system for magnetic mirror dithered ring las Path length control system for magnetic mirror dithered ring las

1988-01-21

1990-02-06

Gonzales, Frank

Coherent light generators

Particular beam control device

Optical output stabilization

372 20, 372 23, 372 33, 372 37, 372 94, 356350, H01S 513

Patent

active

048993468

ABSTRACT:
Path length error is computed from the output frequencies for the two states of magnetization of the magnetic mirror. The path length error signal is used to adjust the location of a path length control mirror to drive the path length error signal to zero. A table is provided for computing the path length control error signal for different regions in the graph of frequency versus gyro angular rate. In effect, the error signal is the difference between a reference frequency which depends on the temperature of the laser structure and an average of the output frequencies corresponding to the two magnetization states of the magnetic mirror.

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