The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2013
Filed:
Dec. 13, 2012
Ngk Insulators, Ltd., Aichi-prefecture, JP;
NGK Insulators, Ltd., Aichi-prefecture, JP;
Abstract
It is provided a wavelength converting device oscillating an idler light having a wavelength of 5 to 10 μm from a pump light. The wavelength of the idler light is longer than that of the pump light. The wavelength converting device includes a wavelength converting layerof a semiconductor non-linear optical crystal and having a thickness of 50 μm or smaller. The wavelength converting layerincludes a crystal orientation inversion structure wherein crystal orientation of the optical crystal is inverted at a predetermined period and at least one flat main face. The device further includes a Peltier devicecontrolling a temperature of the wavelength converting layer; and a clad portionjoined with the flat main faceof the wavelength converting layerand provided between the wavelength converting layerand the Peltier device. The pump light, idler light and signal light satisfies a particular phase matching condition.