Wavelength converter

Japanese Patent JP6322277

B2

　a wavelength conversion device (1F) with which it is possible to avoid situations in which optical elements and the like are exposed to outside air, causing deterioration, and with which the conversion operation of nonlinear optical elements can be carried out rapidly, wherein a casing (700) is divided into regions by a partition wall (730), with one being provided with an incident window (720) and the other provided with an exit window (750). The wavelength conversion device comprises: a housing (80) that houses a nonlinear optical element (70); a stage (71) that is detachably fixed to the housing and that moves, together with the housing, a nonlinear optical element, in a direction that intersects with the optical axis of laser light that has entered from the incident window (720); optical systems (M5, M6) that guide laser light that has passed through openings (740) formed in the partition wall after being emitted from the housing (80) to the exit window (750); and a flexible tube (800) that connects the housing and the opening (740) formed in the partition wall. Purge gas supplied from the purge gas supply unit (910) to the housing (80) is supplied via a flexible tube to the other regions of the casing.

Joji Okada
Yousuke Orii
Seiji Matsubara

JP2016504034A

May 09, 2018

February 09, 2015

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Spectronics Co., Ltd.

G02F1/37

JP2001296570A
JP2011099941A
JP2010231237A
JP2010535361A
JP2013546022A

WO2013153704A1
US20100118386

Kaoru Hashimoto
Matsui Hojin

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