公开(公告)号：US11530156B2

公开(公告)日：2022-12-20

申请号：US16863652

申请日：2020-04-30

Applicant: Ningbo University

Inventor： Xunsi Wang ,  Youren Dong ,  Shixun Dai ,  Qiuhua Nie ,  Xiange Wang ,  Minghui Zhong ,  Rongping Wang ,  Xiang Shen ,  Zijun Liu ,  Yongxing Liu

IPC: C03B37/012 ,  C03B37/10 ,  C03C3/32 ,  C03C3/12 ,  C03C3/253 ,  C03C3/23

Abstract: A method for preparing all-solid-state photonic crystal fiber preform by extrusion by aligning the center of the first jacking end of the first jacking rod with the center of the core outlet mold. The adverse effect on this part of extruded core glass by oxygen or other impurities in air during the extrusion out of the core outlets can be avoided. The defects on the core glass surface and the cladding glass surface can be effectively removed, and the purity and quality of the core component in the obtained fiber preform can be improved.

公开(公告)号：US20220231473A1

公开(公告)日：2022-07-21

申请号：US17305310

申请日：2021-07-02

Applicant: Ningbo University

Inventor： Rongping Wang ,  Kunlun Yan ,  Zhen Yang

IPC: H01S3/063 ,  H01S3/16 ,  H01S3/17 ,  C03C17/02 ,  G03F7/00

Abstract: A manufacturing method of a channel type planar waveguide amplifier and a channel type planar waveguide amplifier. The method is to pattern the channel structures on the surface of the optical substrate, and then seal them together with rare earth doped chalcogenide glass into the quartz tube, and finally the channel-type waveguide structure is directly created via the melt-quenching method to achieve high quality planar waveguide amplifier. Excellent side wall roughness can be assured since the present invention does not have any direct etching of rare earth ions. Chemical composition and the activity of the rare earth ions can be maintained since the whole process is not involved in any decomposition of the glass into atoms, ions or clusters as that occurs during the fabrication process of the films deposited by the traditional methods like thermal evaporation and magnetron sputtering.