SG11201804738SA - Hollow core optical fiber and a laser system - Google Patents

Hollow core optical fiber and a laser system

Info

Publication number
SG11201804738SA
SG11201804738SA SG11201804738SA SG11201804738SA SG11201804738SA SG 11201804738S A SG11201804738S A SG 11201804738SA SG 11201804738S A SG11201804738S A SG 11201804738SA SG 11201804738S A SG11201804738S A SG 11201804738SA SG 11201804738S A SG11201804738S A SG 11201804738SA
Authority
SG
Singapore
Prior art keywords
international
hollow tubes
hollow core
laser system
pct
Prior art date
Application number
SG11201804738SA
Inventor
Jens Kristian Lyngsøe
Christian Jakobsen
Mattia Michieletto
Original Assignee
Nkt Photonics As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nkt Photonics As filed Critical Nkt Photonics As
Publication of SG11201804738SA publication Critical patent/SG11201804738SA/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
    • G02B6/02347—Longitudinal structures arranged to form a regular periodic lattice, e.g. triangular, square, honeycomb unit cell repeated throughout cladding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02319—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
    • G02B6/02323—Core having lower refractive index than cladding, e.g. photonic band gap guiding
    • G02B6/02328—Hollow or gas filled core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C03B37/0122—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of photonic crystal, microstructured or holey optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
    • C03B2203/16—Hollow core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/42—Photonic crystal fibres, e.g. fibres using the photonic bandgap PBG effect, microstructured or holey optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02319—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
    • G02B6/02338—Structured core, e.g. core contains more than one material, non-constant refractive index distribution in core, asymmetric or non-circular elements in core unit, multiple cores, insertions between core and clad
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
    • G02B6/02366—Single ring of structures, e.g. "air clad"
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
    • G02B6/02371—Cross section of longitudinal structures is non-circular
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau 1111111111111111111111111111111111111111111111111111111111111111111111111111R111111111111111 (10) International Publication Number WO 2017/108061 Al WIPO I PCT (43) International Publication Date 29 June 2017 (29.06.2017) (51) International Patent Classification: (74) Agent• HEGNER & PARTNERS A/S; Symbion Science G02B 6/032 (2006.01) Park, Fruebjergvej 3, 2100 Copenhagen 0 (DK). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/DK2016/050460 kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: 22 December 2016 (22.12.2016) 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, JP, KE, KG, KB, KN, English (25) Filing Language: KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, English (26) Publication Language: MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (30) Priority Data: RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, PA 2015 70877 23 December 2015 (23.12.2015) DK TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, PA 2016 70263 27 April 2016 (27.04.2016) DK ZA, ZM, ZW. (71) Applicant: NKT PHOTONICS A/S [DK/DK]; Blokken (84) Designated States (unless otherwise indicated, for every 84, DK-3460 Birkerod (DK). kind of regional protection available): ARIPO (BW, GH, (72) Inventors: LYNGSOE, Jens Kristian; Per Bjorns Vej 5, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, DK-3100 Hornbwk (DK). JAKOBSEN, Christian; Vir- TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, umgade 37a, DK-2830 Virum (DK). MICHIELETTO, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Mattia; Graspurvevej 57, st, DK-2400 Copenhagen NV DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (DK). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, [Continued on next page] (54) Title: HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM (57) : A hollow core photonic crystal fiber (PCF) comprising an outer cladding region and 7 hollow tubes surrounded by the outer clad- ding region. Each of the hollow tubes is fused to the outer cladding to foiin a ring defining an inner cladding region and a hollow core region surroun- ded by the inner cladding region. The hollow tubes are not touching each other, but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter dl, wherein dl/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9. Also a laser system is disclosed. W O 20 17 / 10806 1 Al Fig. WO 2017/108061 Al MIDEDIM000101011101010MMIRMO1101EM01111111011110111111 SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Published: GW, KM, ML, MR, NE, SN, TD, TG). — with international search report (Art. 21(3))
SG11201804738SA 2015-12-23 2016-12-22 Hollow core optical fiber and a laser system SG11201804738SA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA201570877 2015-12-23
DKPA201670263 2016-04-27
PCT/DK2016/050460 WO2017108061A1 (en) 2015-12-23 2016-12-22 Hollow core optical fiber and a laser system

Publications (1)

Publication Number Publication Date
SG11201804738SA true SG11201804738SA (en) 2018-07-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201804738SA SG11201804738SA (en) 2015-12-23 2016-12-22 Hollow core optical fiber and a laser system

Country Status (8)

Country Link
US (5) US10527782B2 (en)
EP (1) EP3394650B1 (en)
JP (3) JP7107840B2 (en)
KR (1) KR20180089513A (en)
CN (3) CN108474905B (en)
CA (1) CA3008053A1 (en)
SG (1) SG11201804738SA (en)
WO (1) WO2017108061A1 (en)

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