公开(公告)号：US12265239B2

公开(公告)日：2025-04-01

申请号：US17259439

申请日：2018-09-12

Applicant: II-VI DELAWARE, INC.

Inventor： Li Wu ,  Zhe Liu ,  Guanglong Yu ,  Yu Li ,  Yan Su ,  Zhiqiang Lin

IPC: G02B5/08 ,  G02B1/10

Abstract: Provided is a wide angle application high reflective mirror having a reflection band partially overlapping in a wavelength range of 800-4000 nm. The mirror comprises a film system in which a plurality of high refractive index film layers and a plurality of low refractive index film layers that are alternately stacked, and the material of the high refractive index film layer is one of SiH, SiOxHy, or SiOxNy, or a mixture thereof. The highly reflective mirror can achieve a reflectance greater than 99% with an incident angle ranging from 0 to 60 degrees over a large angle range.

公开(公告)号：US11698493B2

公开(公告)日：2023-07-11

申请号：US17204768

申请日：2021-03-17

Applicant: II-VI Delaware, Inc

Inventor： Li Wu ,  Yunbing Xu ,  Weimin Chen ,  Yuping Wu ,  Danping Wei ,  Peng Xiao ,  Yang Li ,  Hongming Cai

IPC: G02B6/293 ,  G02B6/27 ,  F21V8/00 ,  G02B6/12 ,  G02B6/10

CPC classification number: G02B6/29322 ,  G02B6/002 ,  G02B6/105 ,  G02B6/12 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2932 ,  G02B2006/12116

Abstract: A single-ended output circulator includes a three-core optical fiber head having first, second, and third optical fiber cores; a walk-off crystal having a first surface facing towards the second end of the three-core optical fiber head tube and a second surface facing away from the second end of the three-core optical fiber head tube; a plurality of half-wave plates each having a first surface coupled to the second surface of the walk-off crystal and a second surface facing away from the second surface of the walk-off crystal; a collimating lens having a first end and a second end; a reflection mirror configured to reflect light beams from the collimating lens; an optical prism between the collimating lens and the reflection mirror and configured to transmit a light beam along a propagation direction according to a polarization direction of the light beam; and a polarization rotator.