Coherent light generators – Particular beam control device – Nonlinear device
Patent
1997-12-22
2000-04-25
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Nonlinear device
372 27, 372100, H01S 310
Patent
active
060552492
ABSTRACT:
A laser light emitting device includes a light source for emitting a continuous-wave laser light beam as a basic wave, a non-linear optical crystal for generating second harmonics, on which the basic wave is incident, a non-linear optical crystal for generating fourth harmonics, on which the second harmonics generated by the non-linear optical crystal for generating second harmonics is incident and a non-linear optical crystal for generating fifth harmonics, on which the basic wave transmitted through the non-linear optical crystal for generating second harmonics and fourth harmonics generated by the non-linear optical crystal for generating fourth harmonics are incident. The non-linear optical crystal for generating fifth harmonics additively mixes these incident waves for generating fifth harmonics. A time-averaged generated output of the second harmonics in the non-linear optical crystal for generating second harmonics is set to 50% to 70% or to 47% to 57% of a time-averaged output of the input wave incident on the non-linear optical crystal for generating second harmonics.
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patent: 5134622 (1992-07-01), Deacon
patent: 5144630 (1992-09-01), Lin
patent: 5408481 (1995-04-01), Scheps
patent: 5742626 (1998-04-01), Mead et al.
Jr. Leon Scott
Sony Corporation
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