Ring laser

Details Ring laser Ring laser

1994-09-09

1995-11-21

Scott, Jr., Leon

Coherent light generators

Particular resonant cavity

Folded cavity

372108, 372 64, H01S 3083

Patent

active

054694604

ABSTRACT:
A ring laser is described, which has a ring (1) in which laser radiation is generated. A coupler (4) couples a part of the radiation in the form of two waves (7,8) to two waveguides (5,6). A combiner (11) combines the two waves to an output wave (12) in an output waveguide (13). By providing a reflector (16) in the output waveguide, a part of the output wave is reflected to the ring via the combiner, the two waveguides and the coupler. The radiation waves travelling in the ring couple to the reflected wave and thereby acquire a well-defined phase difference. The resultant phase equality of the two waves (7,8) at the input of the combiner ensures that the powers of the waves are added in phase so that the ring laser supplies the maximum possible power.

REFERENCES:
patent: 4525843 (1985-06-01), Diels

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