DE69006748D1 - Optischer Filter-Einstellungsapparat und optisches Filter-Verfahren. - Google Patents

Optischer Filter-Einstellungsapparat und optisches Filter-Verfahren.

Info

Publication number
DE69006748D1
DE69006748D1 DE90300386T DE69006748T DE69006748D1 DE 69006748 D1 DE69006748 D1 DE 69006748D1 DE 90300386 T DE90300386 T DE 90300386T DE 69006748 T DE69006748 T DE 69006748T DE 69006748 D1 DE69006748 D1 DE 69006748D1
Authority
DE
Germany
Prior art keywords
optical filter
filter
setting apparatus
optical
reflects light
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
DE90300386T
Other languages
English (en)
Other versions
DE69006748T2 (de
Inventor
Keith Robert Preston
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE69006748D1 publication Critical patent/DE69006748D1/de
Application granted granted Critical
Publication of DE69006748T2 publication Critical patent/DE69006748T2/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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/34—Optical coupling means utilising prism or grating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Surgical Instruments (AREA)
  • Microscoopes, Condenser (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Glass Compositions (AREA)
  • Optical Communication System (AREA)
  • Prostheses (AREA)
DE69006748T 1989-01-13 1990-01-12 Optischer Filter-Einstellungsapparat und optisches Filter-Verfahren. Expired - Fee Related DE69006748T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898900730A GB8900730D0 (en) 1989-01-13 1989-01-13 An optical filter tuning apparatus and an optical filtering method

Publications (2)

Publication Number Publication Date
DE69006748D1 true DE69006748D1 (de) 1994-03-31
DE69006748T2 DE69006748T2 (de) 1994-05-26

Family

ID=10649973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69006748T Expired - Fee Related DE69006748T2 (de) 1989-01-13 1990-01-12 Optischer Filter-Einstellungsapparat und optisches Filter-Verfahren.

Country Status (13)

Country Link
US (1) US5193027A (de)
EP (1) EP0378442B1 (de)
JP (1) JP2801394B2 (de)
KR (1) KR970003765B1 (de)
AT (1) ATE101925T1 (de)
AU (1) AU621985B2 (de)
CA (1) CA2047710C (de)
DE (1) DE69006748T2 (de)
ES (1) ES2049412T3 (de)
GB (1) GB8900730D0 (de)
HK (1) HK136396A (de)
IE (1) IE900130L (de)
WO (1) WO1990008335A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362904B1 (en) * 2000-09-01 2002-03-26 Robert H. Cormack Tunable optical filter with retained complementary output
US6587608B2 (en) 2000-11-14 2003-07-01 Chameleon Optics, Inc. Reconfigurable, all optical add/drop nodes using non-interrupting switching apparatus and methods
WO2002086596A1 (en) 2001-04-20 2002-10-31 Cormack Robert H Polarization insensitive tunable optical filters
US6795654B2 (en) 2001-09-18 2004-09-21 Robert H. Cormack Tunable add/drop filter
US7894692B2 (en) * 2009-05-19 2011-02-22 Ipg Photonics Corporation Method and device for suppressing high-order modes in MM fibers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569569A (en) * 1982-03-31 1986-02-11 Plessey Overseas Limited Optical coupling devices
US4669811A (en) * 1983-11-17 1987-06-02 Pilkington P.E. Limited Optical filtering apparatus
US4671603A (en) * 1983-11-17 1987-06-09 Pilkington P.E. Limited Optical filters and multiplexing-demultiplexing devices using the same
WO1991013377A1 (en) * 1990-02-20 1991-09-05 British Telecommunications Public Limited Company Tunable optical filters
US5039201A (en) * 1990-04-30 1991-08-13 International Business Machines Corporation Double-pass tunable fabry-perot optical filter

Also Published As

Publication number Publication date
US5193027A (en) 1993-03-09
JPH04504176A (ja) 1992-07-23
KR910700475A (ko) 1991-03-15
JP2801394B2 (ja) 1998-09-21
GB8900730D0 (en) 1989-03-08
AU621985B2 (en) 1992-03-26
CA2047710C (en) 1997-12-09
KR970003765B1 (ko) 1997-03-21
IE900130L (en) 1990-07-13
AU4969190A (en) 1990-08-13
EP0378442A1 (de) 1990-07-18
WO1990008335A1 (en) 1990-07-26
ES2049412T3 (es) 1994-04-16
HK136396A (en) 1996-08-02
DE69006748T2 (de) 1994-05-26
CA2047710A1 (en) 1990-07-14
ATE101925T1 (de) 1994-03-15
EP0378442B1 (de) 1994-02-23

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Legal Events

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