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1. (WO2018102219) SILICON-GERMANIUM BASED OPTICAL FILTER
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Pub. No.: WO/2018/102219 International Application No.: PCT/US2017/063115
Publication Date: 07.06.2018 International Filing Date: 22.11.2017
IPC:
G02B 5/28 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
20
Filters
28
Interference filters
Applicants:
VIAVI SOLUTIONS INC. [US/US]; 430 N. McCarthy Blvd. Milpitas, California 95035, US
Inventors:
OCKENFUSS, Georg J.; US
Agent:
HARRITY, John E.; US
HARRITY, Paul A.; US
GURZO, Paul M.; US
Priority Data:
15/365,54030.11.2016US
Title (EN) SILICON-GERMANIUM BASED OPTICAL FILTER
(FR) FILTRE OPTIQUE À BASE DE SILICIUM-GERMANIUM
Abstract:
(EN) An optical filter may include a substrate. An optical filter may include a set of optical filter layers disposed onto the substrate. The set of optical filter layers including a first subset of optical filter layers. The first subset of optical filter layers may include a silicon-germanium (SiGe) with a first refractive index. An optical filter may include a second subset of optical filter layers. The second subset of optical filter layers may include a material with a second refractive index. The second refractive index being less than the first refractive index.
(FR) L'invention concerne un filtre optique pouvant comprendre un substrat. Un filtre optique peut comprendre un ensemble de couches de filtre optique placées sur le substrat. L'ensemble de couches de filtre optique comprend un premier sous-ensemble de couches de filtre optique. Le premier sous-ensemble de couches de filtre optique peut comprendre du silicium-germanium (SiGe) présentant un premier indice de réfraction. Un filtre optique peut comprendre un second sous-ensemble de couches de filtre optique. Le second sous-ensemble de couches de filtre optique peut comprendre un matériau présentant un second indice de réfraction. Le second indice de réfraction est inférieur au premier indice de réfraction.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)