Method and apparatus for stabilizing oscillation frequency separ

Details Method and apparatus for stabilizing oscillation frequency separ Method and apparatus for stabilizing oscillation frequency separ

1990-12-18

1992-07-28

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Optical output stabilization

372 28, 372 24, 372 23, 372 33, 359180, H01S 313

Patent

active

051346249

ABSTRACT:
A method for stabilizing an oscillation frequency separation among a plurality of laser devices wherein a plurality of laser devices are controlled to emit light outputs each having a predetermined frequency so that a frequency separation is stabilized, wherein the plurality of laser devices are divided into a plurality of groups, in each of which the frequency separation is stabilized in accordance with a reference light output of one reference laser device. On the other hand, a plurality of the reference laser devices are controlled to stabilize a frequency separation each other, so that relative frequency separation among the plurality of groups of the plurality of laser devices are stabilized. As a result, a frequency separation of a large number of laser devices is stabilized.

REFERENCES:
patent: 4835782 (1989-05-01), Kaede et al.
patent: 4955026 (1990-09-01), Hill et al.
patent: 4977565 (1990-12-01), Shimosaka
patent: 4989201 (1991-01-01), Glance

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