Solid-state laser device

Details Solid-state laser device Solid-state laser device

2005-08-16

2005-08-16

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

C372S029010, C372S029020, C372S038100

Reexamination Certificate

active

06931048

ABSTRACT:
According to the present invention, there is provided a solid-state laser diode comprising:a laser diode for exciting a solid laser medium;a constant current source for supplying a constant current to the laser diode;voltage measurement unit for measuring a voltage at both ends of the laser diode; andabnormality detection unit for detecting an abnormality at the laser diode based on an output of the voltage measurement unit. Whereby a photodiode need not be arranged on the periphery of the solid laser medium and the laser diode, and an abnormality at the laser diode can be detected without increasing the size of the device and complicating the device and without deteriorating the laser emission efficiency.

REFERENCES:
patent: 6255707 (2001-07-01), Bylsma et al.
patent: 6574257 (2003-06-01), Thronton et al.
patent: 5-343809 (1993-12-01), None
patent: 08136356 (1996-05-01), None
patent: 8-25833 (1996-10-01), None

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