公开(公告)号：US20190025483A1

公开(公告)日：2019-01-24

申请号：US15657515

申请日：2017-07-24

Applicant: Viavi Solutions Inc.

Inventor： James SWITZER III ,  Georg OCKENFUSS

IPC: G02B5/28 ,  G02B6/44 ,  G02B5/08 ,  G02B6/02

Abstract: A bandpass filter may include a set of layers. The set of layers may include a first subset of layers. The first subset of layers may include hydrogenated germanium (Ge:H) with a first refractive index. The set of layers may include a second subset of layers. The second subset of layers may include a material with a second refractive index. The second refractive index may be less than the first refractive index.