公开(公告)号：US20240393516A1

公开(公告)日：2024-11-28

申请号：US18792711

申请日：2024-08-02

Applicant: VIAVI Solutions Inc.

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

IPC: G02B5/28 ,  C23C14/08 ,  C23C14/18 ,  C23C14/54 ,  C23C14/58 ,  G01J5/0802 ,  G02B1/11 ,  G02B1/115 ,  G02B5/20 ,  G06V40/20 ,  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.

公开(公告)号：US20210028213A1

公开(公告)日：2021-01-28

申请号：US16947898

申请日：2020-08-24

Applicant: VIAVI Solutions Inc.

Inventor： Karen Denise HENDRIX ,  Charles A. HULSE ,  Richard A. BRADLEY ,  Jeffrey James KUNA

IPC: H01L27/146 ,  G02B5/28 ,  G01J3/26 ,  G01J3/02

Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.

公开(公告)号：US20160231483A1

公开(公告)日：2016-08-11

申请号：US15099180

申请日：2016-04-14

Applicant: Viavi Solutions, Inc.

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

IPC: G02B5/28 ,  G06K9/00 ,  H04N13/02 ,  H04N5/33 ,  G02B5/20 ,  G02B1/11

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.

公开(公告)号：US20210396919A1

公开(公告)日：2021-12-23

申请号：US17446852

申请日：2021-09-03

Applicant: VIAVI Solutions Inc.

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

IPC: G02B5/28 ,  G01J5/08 ,  H04N13/254 ,  G02B1/115 ,  C23C14/58 ,  C23C14/08 ,  C23C14/54 ,  C23C14/18 ,  G02B1/11 ,  G02B5/20 ,  G06K9/00 ,  H04N5/33

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 mn to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.

公开(公告)号：US20170047366A1

公开(公告)日：2017-02-16

申请号：US15337489

申请日：2016-10-28

Applicant: Viavi Solutions Inc.

Inventor： Karen Denise HENDRIX ,  Charles A. HULSE ,  Richard A. BRADLEY ,  Jeffrey James KUNA

IPC: H01L27/146 ,  G02B5/28

CPC classification number: H01L27/14621 ,  G01J3/0259 ,  G01J3/26 ,  G01J2003/1226 ,  G01J2003/1234 ,  G01J2003/1239 ,  G02B5/281 ,  G02B5/288 ,  H01L27/14623 ,  H01L27/1463 ,  H01L27/14634 ,  H01L27/14643 ,  H01L27/14685

Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.

Abstract translation: 公开了一种可变滤波器，其包括带通滤波器和阻塞滤波器。 带通滤波器包括交替的第一和第二层的堆叠，并且阻挡滤波器包括交替的第三和第四层的堆叠。 第一，第二和第四材料各自包括不同的材料，使得第一材料的折射率小于第二材料的折射率，其小于第四材料的折射率; 而第二材料的吸收系数小于第四材料的吸收系数。 可以选择材料以确保阻挡滤波器中的高折射率对比度和带通滤波器中的低光损耗。 第一至第四层可以直接沉积在光电检测器阵列上。