公开(公告)号：US20170191870A1

公开(公告)日：2017-07-06

申请号：US15427906

申请日：2017-02-08

Applicant: Viavi Solutions Inc.

Inventor： Georg J. OCKENFUSS

IPC: G01J1/04 ,  G01J1/42

Abstract: A spectrometer assembly is provided having an optical transmission filter including a stack of continuous, non-patterned alternating dielectric and metal layers. Angle-dependent transmission wavelength shift of the optical transmission filter with continuous metal layers is small e.g. in comparison with multilayer dielectric filters, facilitating size reduction of the spectrometer assembly.

公开(公告)号：US20160266289A1

公开(公告)日：2016-09-15

申请号：US15158191

申请日：2016-05-18

Applicant: Viavi Solutions, Inc.

Inventor： Karen Denise HENDRIX ,  Richard A. BRADLEY, JR. ,  Marius GRIGONIS ,  Georg J. OCKENFUSS

IPC: G02B5/28 ,  H04N5/33 ,  G06K9/00 ,  H04N13/02

CPC classification number: G02B5/281 ,  G01J5/0862 ,  G02B1/11 ,  G02B5/207 ,  G02B5/285 ,  G06K9/00335 ,  H04N5/33 ,  H04N13/254

Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.

Abstract translation: 提供具有与800nm至1100nm的波长范围至少部分重叠的通带的滤光器。 滤光器包括由氢化硅层和交替堆叠的低折射率层形成的滤光片叠层。 氢化硅层在800nm至1100nm的波长范围内的折射率大于3，在800nm至1100nm的波长范围内的消光系数小于0.0005。