Optical frequency converter of bulk resonator structure

Details Optical frequency converter of bulk resonator structure Optical frequency converter of bulk resonator structure

1992-05-14

1993-07-27

Gonzalez, Frank

Coherent light generators

Particular resonant cavity

Folded cavity

372 22, H01S 3083

Patent

active

052316432

ABSTRACT:
There is disclosed an optical frequency converter of a bulk resonator structure comprising a ring resonator or V-shaped resonator made of a nonlinear optical crystal. The converter is equipped with a means for returning a laser light emitted by a semiconductor laser resonating inside the resonator to the semiconductor laser. The ring resonator or V-shaped resonator is made small in size and compact. The converter is insusceptible to vibration and needs no adjustment. Returning laser light is produced at less locations. The loss of the output light inside the resonator is reduced. The second harmonic is generated at a high efficiency. Multiple reflection is produced inside the resonator to further enhance the efficiency of the generation of the second harmonic of the laser radiation. Also, the phase of the radiation can be made uniform. The optical density can be increased.

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Applied Physics Letters of American Institute of Physics, vol. 56, No. 23, pp. 2291-2292, Jun. 4, 1990 "Generation of 41 mW of Blue Radiation by Frequency Doubling of a GAAlAs Diode Laser", Kozlovsky et al.
Seno et al, "Laser and Atomic Oscillators and Ultimate Photon Optics" Symposium, Jan. 1990, pp. 38-39.

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