Frequency conversion system

Details Frequency conversion system Frequency conversion system

1996-07-12

1997-12-09

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Mode discrimination

372 22, 372 97, 372 69, 359328, H01S 3698

Patent

active

056967802

ABSTRACT:
A multi-axial mode frequency conversion system includes two resonators. At least two resonator mirrors define a first resonator cavity. A gain medium is positioned in the first resonator cavity. A pump source supplies energy to the gain medium. The first resonator cavity produces a first beam with a plurality of axial modes that are incident on a doubling crystal in the first resonator and produce a frequency doubled output beam. The first resonator cavity provides a sufficient number of axial modes to oscillate so that the doubled output beam has a noise of less than 3% RMS. At least two resonator mirrors define a second resonator cavity coupled to the output beam from the first resonator cavity. The second resonator is configured to provide resonant enhancement of at least a portion of the plurality of axial modes. A non-linear optical material is positioned in the second resonator and configured to produce a harmonic output beam.

REFERENCES:
patent: 5446749 (1995-08-01), Nighan, Jr. et al.

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