Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2017137793) FEW MODE OPTICAL FIBERS FOR MODE DIVISION MULTIPLEXING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/137793 International Application No.: PCT/IB2016/001018
Publication Date: 17.08.2017 International Filing Date: 08.02.2016
IPC:
G02B 6/028 (2006.01) ,G02B 6/036 (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
02
Optical fibre with cladding
028
with core or cladding having graded refractive index
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
02
Optical fibre with cladding
036
core or cladding comprising multiple layers
Applicants:
DRAKA COMTEQ BV [NL/NL]; De Boelelaan 7 1083 HJ Amsterdam, NL
Inventors:
SILLARD, Pierre; FR
MOLIN, Denis; FR
BIGOT, Marianne; FR
Agent:
WINDAL, Gaëlle; FR
Priority Data:
Title (EN) FEW MODE OPTICAL FIBERS FOR MODE DIVISION MULTIPLEXING
(FR) FIBRES OPTIQUES À PEU DE MODES POUR MULTIPLEXAGE PAR DIVISION DE MODE
Abstract:
(EN) A Few Mode Fiber supporting 25 or 30 LP guided modes comprises: A graded index core with a α-profile, a radius R1 (at 0 refractive index difference) between 21.5 and 27μm and a maximum refractive index difference Dn1 between 12.5x10-3 and 20x10-3, and an end of the α-profile at a radius R1b, with index difference Dn1b; A trench surrounding the core with radius R3 between 30 and 42μm and refractive index difference Dn3 between -15.10-3 and -6.10-3, An intermediate depressed trench with a radius R2, with R1b23 and a refractive index difference Dn2, with Dn32<0, wherein : for I Dn1b-Dn2 | >=0.5x10-3, Min(Dn1b, Dn2) < -1.5x10-3, and for I Dn1b-Dn2 | <0.5x10-3, Dn2 is between -5x10-3 and -3.5x10-3.
(FR) L'invention concerne une fibre à peu de modes prenant en charge 25 ou 30 modes guidés LP, qui comprend : une âme à gradient d'indice ayant un profil en α, un rayon R1 (à une différence d'indice de réfraction à 0) entre 21,5 et 27 μm et une différence d'indice de réfraction maximale Dn1 entre 12.5x10-3 et 20x10-3, et une extrémité du profil en α ayant un rayon R1b, ayant la différence d'indice Dn1b; une tranchée entourant l'âme ayant un rayon R3 entre 30 et 42 µm et une différence d'indice de réfraction Dn3 entre -15.10 et -6.10-3, une tranchée renfoncée intermédiaire ayant un rayon R2, avec R1b23, et une différence d'indice de réfraction Dn2, avec Dn32<0, avec : o pour I Dn1b-Dn2 | >=0.5x10-3, Min(Dn1b, Dn2) < -1.5x10-3, et o pour I Dn1b-Dn2 | <0.5x10-3, Dn2 compris entre -5x10-3 et -3.5x10-3.
front page image
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, 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 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:
CN108700703EP3414605BR112018015019US20190033515