Coherent light generators – Particular beam control device – Producing plural wavelength output
Reexamination Certificate
2011-03-01
2011-03-01
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular beam control device
Producing plural wavelength output
C372S021000, C372S022000, C372S100000
Reexamination Certificate
active
07899094
ABSTRACT:
A laser light source device includes: a light source; an external resonator; a wavelength conversion element converting the wavelength of part of incident light having the first wavelength into the second wavelength which is different from the first wavelength; and an optical-path conversion element causing the light that has been converted into light of the second wavelength in the process of traveling to the light source due to reflection from the external resonator to be separated into a second optical-path different from the first optical-path, and emitting a second laser light of the second wavelength. In the laser light source device, and the height of the wavelength conversion element is greater than a distance between an optical-axis of the first laser light on an end face of the wavelength conversion element which is close to the external resonator and an optical-axis of the second laser light.
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Kamijima Shunji
Kumagai Keiko
Nguyen Dung T
Oliff & Berridg,e PLC
Seiko Epson Corporation
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