The invention relates to a device for converting electromagnetic input radiation with a first frequency into electromagnetic output radiation with a second frequency which differs from the first frequency. The device has: a coupler; a crystal mounting; a non-linear crystal which is received on the crystal mounting, said non-linear crystal having a first domain and a final domain, wherein the spontaneous polarization of the crystal has a first orientation in the first domain and a second orientation in the final domain, the first orientation and the second orientation differ, the crystal has a first final facet and a second final facet, the final domain is delimited by the second final facet, and the final domain has the shape of a wedge with a wedge angle; and a back reflector. The coupler is designed and arranged such that during the operation of the device, the input radiation is emitted into the crystal through the first final facet by means of the coupler such that the input radiation is transmitted through the crystal and exits the crystal through the second final facet, the crystal is designed and arranged such that a component of the input radiation is converted into the output radiation during the operation of the device, the back reflector is designed and arranged such that, during the operation of the device, the back reflector reflects the input radiation exiting the crystal through the second final facet and the output radiation exiting the crystal through the second final facet back into the crystal through the second final facet such that the input radiation and the output radiation are transmitted through the crystal and exit the crystal through the first final facet. According to the invention, the crystal mounting is designed such that the crystal mounting can be pivoted together with the crystal about a pivot axis, the final domain having the shape of a wedge with the wedge angle on at least one plane which is perpendicular to the pivot axis.
- 출원번호 : EP2024/067256
- 출원인 : FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.;
- 특허번호 :
- IPC : G02F-001/35(2006.01);G02F-001/355(2006.01);