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1. (WO2014060648) BENT OPTICAL WAVEGUIDE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2014/060648 International Application No.: PCT/FI2013/050987
Publication Date: 24.04.2014 International Filing Date: 15.10.2013
IPC:
G02B 6/125 (2006.01) ,G02B 6/122 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10
of the optical waveguide type
12
of the integrated circuit kind
122
Basic optical elements, e.g. light-guiding paths
125
Bends, branchings or intersections
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10
of the optical waveguide type
12
of the integrated circuit kind
122
Basic optical elements, e.g. light-guiding paths
Applicants:
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY [FI/FI]; Vuorimiehentie 3 FI-02150 Espoo, FI
Inventors:
CHERCHI, Matteo; FI
AALTO, Timo; FI
Agent:
IPR PARTNERS OY; Hietalahdenranta 13 FI-00180 Helsinki, FI
Priority Data:
2012608418.10.2012FI
Title (EN) BENT OPTICAL WAVEGUIDE
(FR) GUIDE D'ONDE OPTIQUE COURBE
Abstract:
(EN) An optical multi-mode HIC (high index contrast) waveguide (102,104, 201, 301) for transporting electromagnetic radiation in the optical waveband, the waveguide comprising a guiding core portion (204) with higher refractive index, and cladding portion (206) with substantially lower refractive index configured to at least partially surround the light guiding core in the transverse direction to facilitate confining the propagating radiation within the core, the waveguide being configured to support multiple optical modes of the propagating radiation, wherein the waveguide incorporates a bent waveguide section (202) having bend curvature that is configured to at least gradually, preferably substantially continuously, increase towards a maximum curvature of said section from a section end.
(FR) L'invention concerne un guide d'onde à contraste d'indice élevé (HIC) multimode optique (102, 104, 201, 301) pour transporter un rayonnement électromagnétique dans une bande d'onde optique, lequel guide d'onde comprend une partie âme de guidage (204) ayant un indice de réfraction plus élevé, et une partie revêtement (206) ayant un indice de réfraction essentiellement inférieur conçue pour entourer au moins partiellement l'âme de guidage de lumière dans la direction transversale afin de faciliter le confinement du rayonnement qui se propage dans l'âme, lequel guide d'onde est conçu pour supporter de multiples modes optiques du rayonnement qui se propage, et lequel guide d'onde comprend une section de guide d'onde courbe (202) ayant un courbure qui est conçue pour augmenter au moins graduellement, et de préférence essentiellement continuellement, vers une courbure maximale de ladite section depuis une section d'extrémité.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
CA2888597CN104781708US20150260916JP2015532470EP2909663