DE69021635D1 - Beschichtete optische Übertragungsmedien. - Google Patents

Beschichtete optische Übertragungsmedien.

Info

Publication number
DE69021635D1
DE69021635D1 DE69021635T DE69021635T DE69021635D1 DE 69021635 D1 DE69021635 D1 DE 69021635D1 DE 69021635 T DE69021635 T DE 69021635T DE 69021635 T DE69021635 T DE 69021635T DE 69021635 D1 DE69021635 D1 DE 69021635D1
Authority
DE
Germany
Prior art keywords
optical transmission
transmission media
coated optical
coated
media
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69021635T
Other languages
English (en)
Other versions
DE69021635T2 (de
Inventor
Thomas J Chapin
Addison Guy Hardee
Lisa M Larsen-Moss
Charles M Leshe
Bob J Overton
John W Shea
Carl Taylor
John Michael Turnipseed
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69021635D1 publication Critical patent/DE69021635D1/de
Publication of DE69021635T2 publication Critical patent/DE69021635T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • 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
    • G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4457—Bobbins; Reels
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4486—Protective covering

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
DE69021635T 1989-05-15 1990-05-04 Beschichtete optische Übertragungsmedien. Expired - Fee Related DE69021635T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/351,984 US4962992A (en) 1989-05-15 1989-05-15 Optical transmission media and methods of making same

Publications (2)

Publication Number Publication Date
DE69021635D1 true DE69021635D1 (de) 1995-09-21
DE69021635T2 DE69021635T2 (de) 1996-01-18

Family

ID=23383283

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69021635T Expired - Fee Related DE69021635T2 (de) 1989-05-15 1990-05-04 Beschichtete optische Übertragungsmedien.

Country Status (10)

Country Link
US (1) US4962992A (de)
EP (1) EP0398564B1 (de)
JP (1) JP2828733B2 (de)
KR (1) KR0171887B1 (de)
CN (1) CN1026919C (de)
AU (1) AU618478B2 (de)
BR (1) BR9002274A (de)
CA (1) CA2016799C (de)
DE (1) DE69021635T2 (de)
DK (1) DK0398564T3 (de)

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352712A (en) * 1989-05-11 1994-10-04 Borden, Inc. Ultraviolet radiation-curable coatings for optical fibers
US5536529A (en) * 1989-05-11 1996-07-16 Borden, Inc. Ultraviolet radiation-curable coatings for optical fibers and optical fibers coated therewith
CA1321671C (en) * 1989-05-11 1993-08-24 Paul J. Shustack Ultraviolet radiation-curable coatings for optical fibers and optical fibers coated therewith
US5062685A (en) * 1989-10-11 1991-11-05 Corning Incorporated Coated optical fibers and cables and method
US5371181A (en) * 1990-11-28 1994-12-06 Loctite Corporation Thiol-ene compositions with improved cure speed retention
US5459175A (en) * 1990-11-28 1995-10-17 Loctite Corporation Optical fiber primary coatings and fibers coated therewith
CA2082614A1 (en) * 1992-04-24 1993-10-25 Paul J. Shustack Organic solvent and water resistant, thermally, oxidatively and hydrolytically stable radiation-curable coatings for optical fibers, optical fibers coated therewith and processes for making same
US5257339A (en) * 1992-07-29 1993-10-26 At&T Bell Laboratories Package of optical fiber suitable for high speed payout
US6240230B1 (en) 1997-03-06 2001-05-29 Dsm N.V. Protective materials for optical fibers which do not substantially discolor
JPH09243877A (ja) * 1996-03-12 1997-09-19 Nippon Telegr & Teleph Corp <Ntt> 光ファイバ心線
JP2000508287A (ja) * 1996-04-10 2000-07-04 デー エス エム エヌ．ヴェー． 放射線硬化内側第一被覆と光学ガラス繊維との間の接着性を増大する方法
CN1094909C (zh) * 1997-01-20 2002-11-27 住友电气工业株式会社 带有被覆层的光纤维及其制造方法
US6579618B1 (en) * 1997-08-15 2003-06-17 Dsm N.V. Coated optical fiber and radiation curable resin composition
US6215934B1 (en) 1998-10-01 2001-04-10 Lucent Technologies, Inc. Coated optical fiber with improved strippability
US6215931B1 (en) * 1999-01-26 2001-04-10 Alcatel Flexible thermoplastic polyolefin elastomers for buffering transmission elements in a telecommunications cable
EP1227350A4 (de) * 1999-11-05 2005-06-01 Sumitomo Electric Industries Beschichtete optische faser
US6775451B1 (en) 1999-12-30 2004-08-10 Corning Incorporated Secondary coating composition for optical fibers
WO2001049624A2 (en) 1999-12-30 2001-07-12 Corning Incorporated Secondary coating composition for optical fibers
EP1254082A1 (de) 1999-12-30 2002-11-06 Corning Incorporated Schnellhärtende primärbeschichtung für optische faser
AU3262001A (en) 1999-12-30 2001-07-16 Corning Incorporated Composition containing tackifier and method of modifying time-sensitive rheological properties of optical fiber coating
WO2001049625A1 (en) 1999-12-30 2001-07-12 Corning Incorporated Optical fibers prepared with a primary coating composition including a monomer with a pendant hydroxyl functional group
JP2003531799A (ja) 2000-05-01 2003-10-28 コーニング インコーポレイテッド 光ファイバ被覆
US6577802B1 (en) 2000-07-13 2003-06-10 Corning Incorporated Application of silane-enhanced adhesion promoters for optical fibers and fiber ribbons
US6579914B1 (en) 2000-07-14 2003-06-17 Alcatel Coating compositions for optical waveguides and optical waveguides coated therewith
US6584263B2 (en) 2000-07-26 2003-06-24 Corning Incorporated Optical fiber coating compositions and coated optical fibers
US6553169B2 (en) 2000-11-29 2003-04-22 Corning Incorporated Optical fiber coating compositions and coated optical fibers
WO2002051763A1 (fr) * 2000-12-22 2002-07-04 Sumitomo Electric Industries, Ltd. Fibre optique gainee et son procede de production
US6602601B2 (en) 2000-12-22 2003-08-05 Corning Incorporated Optical fiber coating compositions
EP1370499A2 (de) 2000-12-29 2003-12-17 DSM IP Assets B.V. Nicht kristallbildende oligomere zur verwendung in strahlungshärtbaren faseroptiküberzügen
US20030077059A1 (en) * 2001-03-13 2003-04-24 Ching-Kee Chien Optical fiber coating compositions
US6707977B2 (en) * 2001-03-15 2004-03-16 Corning Incorporated All fiber polarization mode dispersion compensator
US6470128B1 (en) 2001-03-30 2002-10-22 Alcatel UV-curable coating composition for optical fiber for a fast cure and with improved adhesion to glass
US6810187B2 (en) * 2001-07-27 2004-10-26 Corning Incorporated Optical waveguide thermoplastic elastomer coating
BRPI0210491B1 (pt) * 2002-04-24 2016-02-23 Pirelli & C Spa método para controlar perdas de atenuação causadas pela microflexão no sinal transmitido por uma fibra ótica
US20050226582A1 (en) * 2002-04-24 2005-10-13 Nagelvoort Sandra J Radiation curable coating composition for optical fiber with reduced attenuation loss
WO2003091177A1 (en) * 2002-04-24 2003-11-06 Pirelli & C. S.P.A. Optical fiber with reduced attenuation loss
US7238386B2 (en) * 2002-05-09 2007-07-03 Hexion Specialty Chemicals, Inc. Methods for making and using point lump-free compositions and products coated with point lump-free compositions
US6862392B2 (en) 2003-06-04 2005-03-01 Corning Incorporated Coated optical fiber and curable compositions suitable for coating optical fiber
US7207732B2 (en) * 2003-06-04 2007-04-24 Corning Incorporated Coated optical fiber and curable compositions suitable for coating optical fiber
US7050688B2 (en) * 2003-07-18 2006-05-23 Corning Cable Systems Llc Fiber optic articles, assemblies, and cables having optical waveguides
US7715675B2 (en) * 2003-07-18 2010-05-11 Corning Incorporated Optical fiber coating system and coated optical fiber
ATE524759T1 (de) * 2003-09-30 2011-09-15 Prysmian Spa Ein optisches hohladerkabel mit einem reduzierten durchmesser für telekommunikation
US20050207716A1 (en) * 2004-03-17 2005-09-22 Kariofilis Konstadinidis Optical fiber cable coatings
US7423105B2 (en) * 2005-09-30 2008-09-09 Corning Incorporated Fast curing primary optical fiber coatings
US8093322B2 (en) * 2005-10-27 2012-01-10 Corning Incorporated Non-reactive additives for fiber coatings
US7257299B2 (en) * 2005-11-30 2007-08-14 Corning Incorporated Optical fiber ribbon with improved stripability
US7289706B2 (en) * 2005-11-30 2007-10-30 Corning Incorporated Optical fiber ribbon with improved stripability
CN101535196A (zh) * 2006-12-14 2009-09-16 帝斯曼知识产权资产管理有限公司 光纤上的d1363bt可辐射固化初级涂层
RU2434914C2 (ru) * 2006-12-14 2011-11-27 ДСМ Ай Пи ЭССЕТС Б.В. Отверждаемое излучением первичное покрытие d 1368 cr для оптического волокна
CN101535202B (zh) * 2006-12-14 2011-07-27 帝斯曼知识产权资产管理有限公司 光纤上的d1379 p可辐射固化初级涂层
CN103232175B (zh) * 2006-12-14 2016-05-11 帝斯曼知识产权资产管理有限公司 光纤上的d1363bt可辐射固化初级涂层
EP2089332B1 (de) * 2006-12-14 2011-06-29 DSM IP Assets B.V. D1381-superbeschichtungen für optische fasern
RU2434915C2 (ru) * 2006-12-14 2011-11-27 ДСМ Ай Пи ЭССЕТС Б.В. Отверждаемое излучением вторичное покрытие d 1369 d для оптического волокна
RU2436822C2 (ru) * 2006-12-14 2011-12-20 ДСМ Ай Пи ЭССЕТС Б.В. Отверждаемое излучением вторичное покрытие d 1370 r для оптического волокна
CN101535203B (zh) * 2006-12-14 2012-07-25 帝斯曼知识产权资产管理有限公司 光纤用d1365bj可辐射固化初级涂层
CN102557484B (zh) * 2006-12-14 2015-02-25 帝斯曼知识产权资产管理有限公司 光纤上的d1364 bt次级涂层
JP2008224744A (ja) * 2007-03-08 2008-09-25 Furukawa Electric Co Ltd:The 光ファイバ心線
RU2487839C2 (ru) * 2007-11-29 2013-07-20 Корнинг Инкорпорейтед Отверждение волокна протяженными излучателями
CN102203647B (zh) 2008-09-26 2014-04-30 康宁股份有限公司 高数值孔径多模光纤
US8314408B2 (en) 2008-12-31 2012-11-20 Draka Comteq, B.V. UVLED apparatus for curing glass-fiber coatings
US20100220966A1 (en) 2009-02-27 2010-09-02 Kevin Wallace Bennett Reliability Multimode Optical Fiber
IN2012DN00463A (de) 2009-07-17 2015-06-05 Corning Cable Sys Llc
US8406596B2 (en) 2009-08-12 2013-03-26 Corning Incorporated Optical fiber containing multi-layered coating system
US20110188822A1 (en) * 2010-02-04 2011-08-04 Ofs Fitel, Llc Optical fiber coatings for reducing microbend losses
US8385703B2 (en) 2010-03-02 2013-02-26 Corning Incorporated High numerical aperture multimode optical fiber
EP2388239B1 (de) 2010-05-20 2017-02-15 Draka Comteq B.V. Härtungsvorrichtung mit in einem Winkel gerichteter UV-LEDs
US8871311B2 (en) 2010-06-03 2014-10-28 Draka Comteq, B.V. Curing method employing UV sources that emit differing ranges of UV radiation
US20110300367A1 (en) 2010-06-07 2011-12-08 Ching-Kee Chien Optical Fiber With Photoacid Coating
EP2418183B1 (de) 2010-08-10 2018-07-25 Draka Comteq B.V. Verfahren zur Härtung beschichteter Glasfasern mit erhöhter UVLED-Intensität
JP5533825B2 (ja) * 2011-09-13 2014-06-25 住友電気工業株式会社 光ファイバ製造方法および光ファイバ
WO2013039751A1 (en) 2011-09-16 2013-03-21 Corning Incorporated Few mode optical fibers for mode division multiplexing
JP5255690B2 (ja) * 2011-12-27 2013-08-07 古河電気工業株式会社 光ファイバ着色心線、光ファイバテープ心線および光ファイバケーブル
US8848285B2 (en) 2012-01-12 2014-09-30 Corning Incorporated Few mode optical fibers for Er doped amplifiers, and amplifiers using such
US9678247B2 (en) 2012-05-08 2017-06-13 Corning Incorporated Primary optical fiber coating composition containing non-radiation curable component
US9197030B2 (en) 2012-07-31 2015-11-24 Corning Incorporated Few mode rare earth doped optical fibers for optical amplifiers, and amplifiers using such fibers
US9057814B2 (en) 2013-03-28 2015-06-16 Corning Incorporated Large effective area fiber with low bending losses
US9057817B2 (en) 2013-04-15 2015-06-16 Corning Incorporated Low diameter optical fiber
US9383511B2 (en) 2013-05-02 2016-07-05 Corning Incorporated Optical fiber with large mode field diameter and low microbending losses
US9488774B2 (en) 2014-04-01 2016-11-08 Corning Incorporated Primary optical fiber coating composition containing non-radiation curable component
US9891379B2 (en) 2014-11-14 2018-02-13 Corning Incorporated Optical fiber coating compositions with acrylic polymers
US20160177092A1 (en) 2014-12-18 2016-06-23 Corning Incorporated Optical fiber coating composition with non-reactive reinforcing agent
US10604659B2 (en) 2015-06-08 2020-03-31 Dsm Ip Assets B.V. Liquid, hybrid UV/VIS radiation curable resin compositions for additive fabrication
CN108027558B (zh) 2015-10-01 2022-03-25 科思创(荷兰)有限公司 用于加成法制造的液体、混杂的可紫外/可见光辐射固化树脂组合物
KR20180095666A (ko) * 2015-12-18 2018-08-27 레오니 카벨 게엠베하 케이블 및 케이블을 제조하기 위한 방법
WO2017173296A1 (en) 2016-04-01 2017-10-05 Dsm Ip Assets B.V. Multi-layered coated colored optical fibers
JP7111432B2 (ja) 2017-06-02 2022-08-02 コベストロ （ネザーランズ） ビー．ブイ． 光ファイバー用耐熱放射線硬化性コーティング
JP2019129005A (ja) * 2018-01-22 2019-08-01 住友電気工業株式会社 被覆電線および多芯ケーブル
WO2019212800A1 (en) 2018-04-30 2019-11-07 Corning Incorporated Small outer diameter low attenuation optical fiber
US11181687B2 (en) 2018-04-30 2021-11-23 Corning Incorporated Small diameter low attenuation optical fiber
US11181686B2 (en) 2018-04-30 2021-11-23 Corning Incorporated Small diameter low attenuation optical fiber
US10775557B2 (en) 2018-05-03 2020-09-15 Corning Incorporated Fiber coatings with low pullout force
US10689544B2 (en) 2018-05-03 2020-06-23 Corning Incorporated Fiber coatings with low pullout force
CN116239949B (zh) 2018-06-01 2024-07-05 科思创(荷兰)有限公司 用于涂覆光纤的辐射可固化组合物及由其生产的涂层
WO2020069053A1 (en) 2018-09-28 2020-04-02 Corning Research & Development Corporation Small diameter fiber optic cables having low-friction cable jackets and optical fibers with reduced cladding and coating diameters
JP2022509797A (ja) 2018-12-03 2022-01-24 コベストロ （ネザーランズ） ビー．ヴィー． 光ファイバーをコーティングするための充填放射線硬化性組成物およびそれから製造されるコーティング
US11036000B2 (en) 2019-01-16 2021-06-15 Corning Incorporated Optical fiber cable with high fiber count
WO2020239563A1 (en) 2019-05-24 2020-12-03 Dsm Ip Assets B.V. Radiation curable compositions for coating optical fiber with enhanced high-speed processability
WO2020239564A1 (en) 2019-05-24 2020-12-03 Dsm Ip Assets B.V. Radiaton curable compositions for coating optical fiber with enhanced high-speed processability
JP2022543200A (ja) 2019-07-31 2022-10-11 コベストロ （ネザーランズ） ビー．ブイ． 光ファイバーを被覆するための多官能性長アームオリゴマーを含む放射線硬化性組成物
US11194107B2 (en) 2019-08-20 2021-12-07 Corning Incorporated High-density FAUs and optical interconnection devices employing small diameter low attenuation optical fiber
CN114930218B (zh) 2020-01-07 2024-05-03 康宁股份有限公司 具有高的机械可靠性的半径减小的光纤
CN115190871A (zh) 2020-01-17 2022-10-14 康宁股份有限公司 具有低损耗和微弯曲敏感度的涂层直径减小的氯掺杂二氧化硅光纤
WO2021231083A1 (en) 2020-05-12 2021-11-18 Corning Incorporated Reduced diameter single mode optical fibers with high mechanical reliability
CN111707206B (zh) * 2020-06-04 2022-03-18 哈尔滨工程大学 一种带位置检测功能的量子点光纤微弯传感器
CN115777077A (zh) 2020-06-30 2023-03-10 科思创(荷兰)有限公司 光纤涂料的粘度指数改进剂
JP2023007731A (ja) * 2021-07-02 2023-01-19 住友電気工業株式会社 光ファイバの製造方法および製造装置
WO2023205223A1 (en) 2022-04-21 2023-10-26 Covestro (Netherlands) B.V. Radiation curable compositions for coating optical fibers
US12187852B1 (en) 2024-01-02 2025-01-07 Covestro Llc Ethylenically unsaturated oligomers, methods for their preparation, and the use thereof in coating compositions

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105284A (en) * 1976-05-10 1978-08-08 Corning Glass Works Buffered optical waveguide fiber
US4324575A (en) * 1980-08-11 1982-04-13 Bell Telephone Laboratories, Incorporated Low TG soft UV-curable coatings
JPS58211707A (ja) * 1982-06-04 1983-12-09 Nippon Telegr & Teleph Corp <Ntt> 被覆光フアイバ
GB2145841B (en) * 1983-09-01 1987-04-01 American Telephone & Telegraph Coated optical fiber
NL8502402A (nl) * 1985-09-03 1987-04-01 Philips Nv Optische vezel voorzien van een kunststofbedekking, en werkwijze en inrichting voor de vervaardiging van een dergelijke optische vezel.
NL8702395A (nl) * 1987-10-08 1989-05-01 Philips Nv Optische vezel voorzien van een kunststofbedekking.
US4900126A (en) * 1988-06-30 1990-02-13 American Telephone & Telegraph Co. Bonded array of transmission media

Also Published As

Publication number Publication date
CA2016799C (en) 1994-12-13
EP0398564A3 (de) 1991-07-17
AU5487690A (en) 1990-11-15
DK0398564T3 (da) 1995-09-18
CN1047394A (zh) 1990-11-28
DE69021635T2 (de) 1996-01-18
JPH039311A (ja) 1991-01-17
KR900018709A (ko) 1990-12-22
CA2016799A1 (en) 1990-11-15
CN1026919C (zh) 1994-12-07
JP2828733B2 (ja) 1998-11-25
KR0171887B1 (ko) 1999-05-01
US4962992A (en) 1990-10-16
EP0398564A2 (de) 1990-11-22
BR9002274A (pt) 1991-08-06
AU618478B2 (en) 1991-12-19
EP0398564B1 (de) 1995-08-16

Similar Documents

Publication Publication Date Title
DE69021635D1 (de) Beschichtete optische Übertragungsmedien.
DE69023342D1 (de) Optische vorrichtungen.
DE69023489D1 (de) Optische Koppelvorrichtung.
DE69017848D1 (de) Optische Übertragungsvorrichtung.
DE69108349D1 (de) Optische Verstärker.
DE69022497D1 (de) Optisches Aufzeichnungsmedium.
DE69010594D1 (de) Optische Verstärker.
NL193153B (nl) Optische koppelinrichting.
DE69020688D1 (de) Optische Plattenaufzeichnungsvorrichtung.
DE3854059D1 (de) Optische Wellenleitervorrichtung.
DE69019635D1 (de) Optisches Aufzeichnungsmedium.
DE69018561D1 (de) Optisches Plattengerät.
DE68915630D1 (de) Medium für optische Scheiben.
DE69001657D1 (de) Optische kodierer.
DE3888150D1 (de) Optische Vermittlung.
DE69019889D1 (de) Optische Komponente.
DE69009513D1 (de) Optische Fasereinheit.
DE3576572D1 (de) Optische kupplung.
DE69021484D1 (de) Optische Verstärker-Photodetektor-Anordnung.
DE69014837D1 (de) Optische Verbindungsvorrichtung.
DE58907515D1 (de) Optische Datenübertragungsvorrichtung.
DE68914605D1 (de) Element für optische Kopplung.
DE3884748D1 (de) Optische Plattenspieler.
DE3763266D1 (de) Optische speicherplatte.
DE69005720D1 (de) Beschichtete optische Faser.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee