GB2143337B - Optical isolator - Google Patents

Optical isolator

Info

Publication number
GB2143337B
GB2143337B GB08417899A GB8417899A GB2143337B GB 2143337 B GB2143337 B GB 2143337B GB 08417899 A GB08417899 A GB 08417899A GB 8417899 A GB8417899 A GB 8417899A GB 2143337 B GB2143337 B GB 2143337B
Authority
GB
United Kingdom
Prior art keywords
optical isolator
isolator
optical
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
Application number
GB08417899A
Other versions
GB8417899D0 (en
GB2143337A (en
Inventor
Takayuki Nakano
Hidetoshi Iwamura
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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
Priority claimed from JP12893783A external-priority patent/JPS6021023A/en
Priority claimed from JP8469084A external-priority patent/JPS60227222A/en
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of GB8417899D0 publication Critical patent/GB8417899D0/en
Publication of GB2143337A publication Critical patent/GB2143337A/en
Application granted granted Critical
Publication of GB2143337B publication Critical patent/GB2143337B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
    • G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
    • 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
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
    • G02B6/4209—Optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
GB08417899A 1983-07-15 1984-07-13 Optical isolator Expired GB2143337B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12893783A JPS6021023A (en) 1983-07-15 1983-07-15 Optical isolator element
JP8469084A JPS60227222A (en) 1984-04-26 1984-04-26 Optical isolator

Publications (3)

Publication Number Publication Date
GB8417899D0 GB8417899D0 (en) 1984-08-15
GB2143337A GB2143337A (en) 1985-02-06
GB2143337B true GB2143337B (en) 1987-03-18

Family

ID=26425677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08417899A Expired GB2143337B (en) 1983-07-15 1984-07-13 Optical isolator

Country Status (4)

Country Link
DE (1) DE3426138C2 (en)
FR (1) FR2549246B1 (en)
GB (1) GB2143337B (en)
NL (1) NL192407C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815806A (en) * 1987-12-04 1989-03-28 Coherent, Inc. Stabilized laser fiber launcher
US4941738A (en) * 1988-07-29 1990-07-17 American Telephone And Telegraph Company Polarization independent optical amplifier apparatus
US5052786A (en) * 1990-03-05 1991-10-01 Massachusetts Institute Of Technology Broadband faraday isolator
GB9219095D0 (en) * 1992-09-09 1992-10-28 Univ Strathclyde Ring laser
JP2002162609A (en) * 2000-11-27 2002-06-07 Ando Electric Co Ltd Polarization scrambler and spectroscope

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420601A (en) * 1965-06-24 1969-01-07 American Optical Corp Materials and structures for optical faraday rotation devices
GB1219267A (en) * 1967-06-05 1971-01-13 Mullard Ltd Magneto-optic body
SE7502770L (en) * 1974-03-12 1975-09-15 Comp Generale Electricite
US3824492A (en) * 1972-06-22 1974-07-16 United Aircraft Corp Solid state single frequency laser
US4272158A (en) * 1979-03-02 1981-06-09 Coherent, Inc. Broadband optical diode for a ring laser
JPS5649517U (en) * 1979-09-25 1981-05-01

Also Published As

Publication number Publication date
NL192407B (en) 1997-03-03
GB8417899D0 (en) 1984-08-15
NL192407C (en) 1997-07-04
FR2549246A1 (en) 1985-01-18
DE3426138A1 (en) 1985-01-24
NL8402233A (en) 1985-02-01
FR2549246B1 (en) 1988-05-27
GB2143337A (en) 1985-02-06
DE3426138C2 (en) 1999-07-22

Similar Documents

Publication Publication Date Title
GB8429794D0 (en) Optical glasses
GB8427109D0 (en) Optical system
GB8410895D0 (en) Optical glass
GB8313484D0 (en) Optical waveguide
DE3477477D1 (en) Laser beamwelding
GB2135475B (en) Optical de-polarizer
GB2137981B (en) Optical glass
EP0206325A3 (en) Optical isolator
GB8402807D0 (en) Optical device
GB2213605B (en) Optical isolator
EP0279412A3 (en) Optical isolator
GB2137189B (en) Optical glass
GB2151869B (en) Optical amplifiers
GB2145711B (en) Optical glass
GB8515283D0 (en) Glass
GB8403733D0 (en) Glass
GB2143337B (en) Optical isolator
GB8427448D0 (en) Optical attenuator
GB2133901B (en) Optical bench
GB8418851D0 (en) Optical glass
GB8301114D0 (en) Waveguides
GB8308154D0 (en) Cladding
DE3475114D1 (en) Optical assemblies
GB8426260D0 (en) Cladding
SU1141964A1 (en) Laser

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020713