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1. (WO2019031070) PRODUCTION METHOD FOR SINGLE CORE OPTICAL FIBER BASE MATERIAL AND PRODUCTION METHOD FOR SINGLE CORE OPTICAL FIBER
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/031070 International Application No.: PCT/JP2018/023340
Publication Date: 14.02.2019 International Filing Date: 19.06.2018
IPC:
C03B 37/012 (2006.01) ,C03B 37/00 (2006.01) ,C03B 37/018 (2006.01) ,G02B 6/02 (2006.01) ,G02B 6/036 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
B
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01
Manufacture of glass fibres or filaments
012
Manufacture of preforms for drawing fibres or filaments
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
B
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
B
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01
Manufacture of glass fibres or filaments
012
Manufacture of preforms for drawing fibres or filaments
014
made entirely or partially by chemical means
018
by glass deposition on a glass substrate, e.g. by chemical vapour deposition
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
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:
株式会社フジクラ FUJIKURA LTD. [JP/JP]; 東京都江東区木場一丁目5番1号 5-1, Kiba 1-chome, Koto-ku, Tokyo 1358512, JP
Inventors:
安間 淑通 AMMA Yoshimichi; JP
福本 良平 FUKUMOTO Ryohei; JP
Agent:
森村靖男 MORIMURA Yasuo; JP
青木博昭 AOKI Hiroaki; JP
Priority Data:
2017-15433309.08.2017JP
Title (EN) PRODUCTION METHOD FOR SINGLE CORE OPTICAL FIBER BASE MATERIAL AND PRODUCTION METHOD FOR SINGLE CORE OPTICAL FIBER
(FR) PROCÉDÉ DE FABRICATION D'UN MATÉRIAU À BASE DE FIBRE OPTIQUE À ÂME SIMPLE, ET PROCÉDÉ DE PRODUCTION POUR FIBRE OPTIQUE À ÂME SIMPLE
(JA) シングルコア光ファイバ用母材の製造方法、及び、シングルコア光ファイバの製造方法
Abstract:
(EN) The present invention comprises: a bundling step (P1) in which a plurality of glass rods are bundled that include a core rod (2) having a core section (10R) being a core (10) and a plurality of cladding rods (3) arranged in contact with an outer circumferential surface of the core rod (2) and becoming part of a cladding (20); an external attachment step (P2) in which soot (5), which becomes another part of the cladding (20), is deposited upon the outer circumferential surface of the bundled plurality of glass rods; and a sintering step (P3) in which the plurality of glass rods having the soot (5) deposited thereupon are heated and the soot (5) and each glass rod form an integrated glass body. In the bundling step (P1), the plurality of cladding rods (3) are arranged at positions at which same overlap each of the apexes of a polygon encircling the core rod (2).
(FR) La présente invention comprend : une étape de formation de faisceau (P1) dans laquelle une pluralité de tiges de verre sont regroupées qui comprennent une tige centrale (2) ayant une section centrale (10R) qui est une âme (10) et une pluralité de tiges de gainage (3) agencées en contact avec une surface circonférentielle externe de la tige centrale (2) et faisant partie d'une gaine (20) ; une étape de fixation externe (P2) dans laquelle la suie (5), qui devient une autre partie de la gaine (20), est déposée sur la surface circonférentielle externe de la pluralité de tiges de verre regroupées en faisceau ; et une étape de frittage (P3) dans laquelle la pluralité de tiges de verre ayant la suie (5) déposée sur celles-ci sont chauffées et la suie (5) et chaque tige de verre forment un corps en verre intégré. Dans l'étape de formation de faisceau (P1), la pluralité de tiges de gainage (3) sont agencées à des positions au niveau desquelles se chevauchent chacun des sommets d'un polygone encerclant la tige centrale (2).
(JA) コア(10)となるコア部(10R)を有するコアロッド(2)、及び、コアロッド(2)の外周面に接して配置され、クラッド(20)の一部となる複数のクラッドロッド(3)、を含む複数のガラスロッドを束ねるバンドル工程(P1)と、束ねられた複数のガラスロッドの外周面上にクラッド(20)の他の一部となるスート(5)を堆積する外付工程(P2)と、スート(5)が堆積した複数のガラスロッドを加熱してスート(5)とそれぞれのガラスロッドとを一体のガラス体とする焼結工程(P3)と、を備え、バンドル工程(P1)において、複数のクラッドロッド(3)は、コアロッド(2)を囲う多角形のそれぞれの頂点と重なる位置に配置される。
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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, 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 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: Japanese (JA)
Filing Language: Japanese (JA)