Wavelength conversion device
AssigneeGigaphoton Inc.
InventorTakayuki OSANAI
Life of this patent
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Abstract
A wavelength conversion device according to an aspect of the present disclosure includes a wavelength conversion crystal configured to wavelength-convert incident light and to output outgoing light, a holder that holds the wavelength conversion crystal on an optical path of the incident light, a cell that houses the wavelength conversion crystal and the holder inside and has a first inlet for supplying a purge gas to the inside and a first outlet for discharging the purge gas from the inside, a first cylindrical member that has an internal space through which the optical path of the incident light passes, and is spaced from the wavelength conversion crystal, and a first partition wall that is disposed between the first inlet and the first outlet and holds the first cylindrical member.
Claims16
A wavelength conversion device comprising:
- a wavelength conversion crystal configured to wavelength-convert incident light and to output outgoing light;
- a holder that holds the wavelength conversion crystal on an optical path of the incident light;
- a cell that houses the wavelength conversion crystal and the holder inside and has a first inlet for supplying a purge gas to the inside and a first outlet for discharging the purge gas from the inside;
- a first cylindrical member that has an internal space and is spaced from the wavelength conversion crystal, the optical path of the incident light passing through the internal space;
- and
- a first partition wall that is disposed between the first inlet and the first outlet and holds the first cylindrical member.
Dependencies are inferred from the claim text.