Optical: systems and elements – Optical frequency converter – Harmonic generator
Patent
1996-01-26
1998-01-27
Lee, John D.
Optical: systems and elements
Optical frequency converter
Harmonic generator
372 22, G02F 137, H01S 3109
Patent
active
057127239
ABSTRACT:
A second harmonic generator includes a laser diode mount, a laser diode on the mount for producing pumping light, a resonator for generating second harmonic light from the pumping light output from the laser diode, a lock connecting the resonator and the laser diode mount, a thermal controller including a thermoelectric cooling device for controlling the temperature of the resonator, a housing housing the resonator and coupled to the laser diode mount, a beam splitter for reflecting part of the second harmonic light emitted from the resonator, and a photodetector for detecting light reflected from the beam splitter. The thermoelectric cooling device is interposed between the housing and resonator so that the resonator and the housing are thermally connected. The second harmonic generator separates a thermally unrelated element from a thermal control path to reduce the heat control burden. Since the path of heat flow is only from the resonator to the housing, temperature control of the resonator is accomplished rapidly and precisely.
REFERENCES:
patent: 3858056 (1974-12-01), Melamed et al.
patent: 4913533 (1990-04-01), Kafka et al.
patent: 5093832 (1992-03-01), Bethune et al.
patent: 5253259 (1993-10-01), Yamamoto et al.
patent: 5495489 (1996-02-01), Lee et al.
patent: 5521375 (1996-05-01), Jang
Lee John D.
Samsung Electronics Co,. Ltd.
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