公开(公告)号：US11300874B2

公开(公告)日：2022-04-12

申请号：US16382137

申请日：2019-04-11

申请人： Finisar Corporation

发明人： Nitesh Gulati ,  Vincent Choo ,  Yiwei Xu ,  Glenn Wayne Baxter ,  Steven James Frisken

IPC分类号： G02B5/18 ,  G02B3/00 ,  G03F7/00

摘要： Described herein are embodiments of a diffractive optical element (23) such as a grism. In one embodiment, the diffractive optical element (23) includes an input surface (31) configured to receive an input optical signal (29), a diffractive surface (33) adapted to spatially disperse the input optical beam (29) into a dispersed signal and an output surface (35) configured to output the dispersed signal from the diffractive optical element. The input surface (31) and the diffractive surface (33) are non-parallel and the diffractive surface (33) is formed in situ by a photolithographic technique.

公开(公告)号：US20190317256A1

公开(公告)日：2019-10-17

申请号：US16382137

申请日：2019-04-11

申请人： Finisar Corporation

发明人： Nitesh Gulati ,  Vincent Choo ,  Yiwei Xu ,  Glenn Wayne Baxter ,  Steven James Frisken

IPC分类号： G02B5/18

摘要： Described herein are embodiments of a diffractive optical element (23) such as a grism. In one embodiment, the diffractive optical element (23) includes an input surface (31) configured to receive an input optical signal (29), a diffractive surface (33) adapted to spatially disperse the input optical beam (29) into a dispersed signal and an output surface (35) configured to output the dispersed signal from the diffractive optical element. The input surface (31) and the diffractive surface (33) are non-parallel and the diffractive surface (33) is formed in situ by a photolithographic technique.