Cavity modulated linear chirp laser

Details Cavity modulated linear chirp laser Cavity modulated linear chirp laser

1992-04-21

1994-02-22

Epps, Georgia Y.

Coherent light generators

Particular resonant cavity

Folded cavity

372 93, 372 99, 372100, 372 92, H01S 3083

Patent

active

052894932

ABSTRACT:
A laser configuration is disclosed that generates linear, repeatable, and one-directional frequency modulated chirps by means of a laser cavity whose effective length is varied by employing a combination of a moving special optical element that engages the laser beam twice on each pass of the laser beam through the cavity plus other optical elements such that the laser beam is returned back upon itself, thus rendering ineffective certain errors of position or orientation associated with the motion of the special optical element that otherwise would disturb the established optical alignment of the laser cavity. Equivalent results are obtained with a ring laser by applying similar and corresponding optical features.

REFERENCES:
patent: 4099141 (1978-07-01), Leblanc et al.
patent: 4292602 (1981-09-01), Bergqvist

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