公开(公告)号：US20220100049A1

公开(公告)日：2022-03-31

申请号：US17483231

申请日：2021-09-23

Applicant: Shanxi University

Inventor： Kuanshou Zhang ,  Jinxia Feng ,  Yuanji Li ,  Zhenyu Jiang

IPC: G02F1/35

Abstract: An integral optical resonant cavity for frequency conversion is provided. The integral optical resonant cavity includes: a housing, a cavity-length adjustment device, a temperature control device and a nonlinear crystal provided in the temperature control device; a first plano-concave mirror and a second plano-concave mirror included in the cavity-length adjustment device and a nonlinear crystal form the optical resonant cavity; and light passes through the first plano-concave mirror, the nonlinear crystal and the second plano-concave mirror sequentially. The stability of the length of the optical resonant cavity is improved through an integral design thereof, and the stability of the temperature of the nonlinear crystal in the integral optical resonant cavity is improved through the temperature control device, thereby stably controlling relative phases between light fields for the frequency conversion in the resonant cavity. Meanwhile, the length of the integral optical resonant cavity is accurately controlled through the cavity-length adjustment device.

公开(公告)号：US12184029B2

公开(公告)日：2024-12-31

申请号：US17483231

申请日：2021-09-23

Applicant: Shanxi University

Inventor： Kuanshou Zhang ,  Jingke Sun ,  Jinxia Feng ,  Yuanji Li ,  Zhenyu Jiang

IPC: H01S3/09 ,  H01S3/00 ,  H01S3/102 ,  H01S3/105 ,  H01S3/109 ,  H01S3/131 ,  H01S3/139 ,  G02F1/35

Abstract: An integral optical resonant cavity for frequency conversion is provided. The integral optical resonant cavity includes: a housing, a cavity-length adjustment device, a temperature control device and a nonlinear crystal provided in the temperature control device; a first plano-concave mirror and a second plano-concave mirror included in the cavity-length adjustment device and a nonlinear crystal form the optical resonant cavity; and light passes through the first plano-concave mirror, the nonlinear crystal and the second plano-concave mirror sequentially. The stability of the length of the optical resonant cavity is improved through an integral design thereof, and the stability of the temperature of the nonlinear crystal in the integral optical resonant cavity is improved through the temperature control device, thereby stably controlling relative phases between light fields for the frequency conversion in the resonant cavity. Meanwhile, the length of the integral optical resonant cavity is accurately controlled through the cavity-length adjustment device.