NL180883C - Optische circulator. - Google Patents

Optische circulator.

Info

Publication number: NL180883C
Authority: NL; Netherlands
Prior art keywords: optical circulator; circulator; optical
Prior art date: 1978-11-28

Application number

NLAANVRAGE7908628,A

Other languages

English (en)

Dutch (nl)

Other versions

NL180883B (nl

NL7908628A (nl

Original Assignee

Nippon Telegraph & Telephone

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.)

1978-11-28

Filing date

1979-11-28

Publication date

1987-05-04

1978-11-28 Priority claimed from JP14689778A external-priority patent/JPS5845004B2/ja

1978-12-26 Priority claimed from JP16297578A external-priority patent/JPS5588009A/ja

1979-02-26 Priority claimed from JP54021679A external-priority patent/JPS6012607B2/ja

1979-11-28 Application filed by Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone

1980-05-30 Publication of NL7908628A publication Critical patent/NL7908628A/nl

1986-12-01 Publication of NL180883B publication Critical patent/NL180883B/xx

1987-05-04 Application granted granted Critical

1987-05-04 Publication of NL180883C publication Critical patent/NL180883C/xx

Links

230000003287 optical effect Effects 0.000 title 1

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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/288—Filters employing polarising elements, e.g. Lyot or Solc filters
- 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
- G02F2203/00—Function characteristic
- G02F2203/06—Polarisation independent

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Nonlinear Science (AREA)
Engineering & Computer Science (AREA)
Power Engineering (AREA)

NLAANVRAGE7908628,A 1978-11-28 1979-11-28 Optische circulator. NL180883C (nl)

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
JP14689778A JPS5845004B2 (ja)	1978-11-28	1978-11-28	光サ−キユレ−タ
JP14689778		1978-11-28
JP16297578		1978-12-26
JP16297578A JPS5588009A (en)	1978-12-26	1978-12-26	Double refractive polarizing prism
JP2167979		1979-02-26
JP54021679A JPS6012607B2 (ja)	1979-02-26	1979-02-26	光サ−キユレ−タ

Publications (3)

Publication Number	Publication Date
NL7908628A NL7908628A (nl)	1980-05-30
NL180883B NL180883B (nl)	1986-12-01
NL180883C true NL180883C (nl)	1987-05-04

Family

ID=27283517

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7908628,A NL180883C (nl)	1978-11-28	1979-11-28	Optische circulator.

Country Status (7)

Country	Link
US (1)	US4272159A (it)
CA (1)	CA1128347A (it)
DE (1)	DE2947730C2 (it)
FR (1)	FR2443079A1 (it)
GB (1)	GB2038022B (it)
IT (1)	IT1127644B (it)
NL (1)	NL180883C (it)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55121215U (it) *	1979-02-21	1980-08-28
DE3137442A1 (de) *	1981-09-21	1983-03-31	Siemens AG, 1000 Berlin und 8000 München	Optischer polarisator
US4482202A (en) *	1982-09-20	1984-11-13	Tsukasa Nagao	Optical glass fiber transmission lines coupled junction circulators
US4464022A (en) *	1982-09-28	1984-08-07	At&T Bell Laboratories	Optical circulator
DE3327417A1 (de) *	1983-07-29	1985-02-07	Philips Patentverwaltung Gmbh, 2000 Hamburg	Optische verzweigungsvorrichtung
JPS60202415A (ja) *	1984-03-27	1985-10-12	Hoya Corp	光アイソレ−タ
JPS61104348A (ja) *	1984-10-22	1986-05-22	Nec Corp	光磁気ヘツド
US5223975A (en) *	1988-11-11	1993-06-29	Fujitsu Limited	Polarization beam coupler including a splitter for producing an output monitor beam
US5124634A (en) *	1989-03-14	1992-06-23	Square D Company	Ring optical current transducer
EP0435296B1 (en) *	1989-12-28	1994-10-05	Fujitsu Limited	Optical space switch and network with such optical space switches
US5052786A (en) *	1990-03-05	1991-10-01	Massachusetts Institute Of Technology	Broadband faraday isolator
EP0491607B1 (en) *	1990-12-17	1996-07-31	Nippon Telegraph And Telephone Corporation	Optical circulator
US5191467A (en) *	1991-07-24	1993-03-02	Kaptron, Inc.	Fiber optic isolater and amplifier
DE4128468C2 (de) *	1991-08-28	1997-05-28	Hell Ag Linotype	Vorrichtung zur Teilung eines Lichtstrahls
US5212586A (en) *	1991-11-26	1993-05-18	Optics For Research	Optical circulator having a simplified construction
WO1994009400A1 (en) *	1992-10-20	1994-04-28	Telstra Corporation Limited	An optical circulator
US5689593A (en) *	1995-10-13	1997-11-18	E-Tek Dynamics, Inc.	Compact fiberoptic circulator with low polarization mode dispersion
US5682446A (en) *	1995-10-13	1997-10-28	E-Tek Dynamics, Inc.	Polarization mode dispersion-free circulator
US6487014B2 (en) *	1996-08-12	2002-11-26	National Research Council Of Canada	High isolation optical switch, isolator or circulator having thin film polarizing beam-splitters
JP4079228B2 (ja) *	1996-12-12	2008-04-23	富士通株式会社	光サーキュレータの機能を有する光デバイス
US6278547B1 (en) *	1998-05-06	2001-08-21	Hughes Electronics Corporation	Polarization insensitive faraday attenuator
US6075596A (en) *	1998-05-19	2000-06-13	E-Tek Dynamics, Inc.	Low cost fiber optic circulator
US6154581A (en) *	1998-10-27	2000-11-28	Adc Telecommunications, Inc.	Multiple port, fiber optic circulator
US6301045B1 (en) *	1999-01-27	2001-10-09	Alliance Fiber Optics Products, Inc.	Three-port optical circulator
US6246807B1 (en)	1999-04-06	2001-06-12	Adc Telecommunications, Inc.	Optical circulator
US6407861B1 (en)	1999-04-06	2002-06-18	Adc Telecommunications, Inc.	Adjustable optical circulator
US6178044B1 (en) *	1999-08-31	2001-01-23	Oplink Communications, Inc.	Method and system for providing an optical circulator
JP2001154148A (ja) *	1999-11-26	2001-06-08	Tokin Corp	光回路素子及びその製造方法
US20060044650A1 (en) *	2004-08-27	2006-03-02	Liren Du	Low insertion loss circulator
US8314988B2 (en) *	2007-12-21	2012-11-20	Infinera Corporation	Polarization insensitive optical circuit
US8452185B2 (en) *	2007-12-21	2013-05-28	Infinera Corporation	Polarization insensitive optical circuit
JP5751328B2 (ja) *	2011-06-29	2015-07-22	株式会社ニコン	構造化照明光学系および構造化照明顕微鏡装置
US10775637B2 (en)	2017-12-06	2020-09-15	Google Llc	Integrated optical circulator enabling polarization diversity
US10838157B1 (en)	2019-08-28	2020-11-17	Rad Data Communications Ltd.	BiDi QSFP

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2745316A (en) *	1952-12-23	1956-05-15	Rca Corp	High efficiency polarizing light valve
FR1379310A (fr) *	1963-12-30	1964-11-20	Western Electric Co	Circulateur optique
US3401590A (en) *	1965-03-01	1968-09-17	Sylvania Electric Prod	Optical coupler

1979
- 1979-11-14 US US06/093,967 patent/US4272159A/en not_active Expired - Lifetime
- 1979-11-20 CA CA340,188A patent/CA1128347A/en not_active Expired
- 1979-11-22 GB GB7940459A patent/GB2038022B/en not_active Expired
- 1979-11-26 FR FR7929032A patent/FR2443079A1/fr active Granted
- 1979-11-27 DE DE2947730A patent/DE2947730C2/de not_active Expired
- 1979-11-28 NL NLAANVRAGE7908628,A patent/NL180883C/xx not_active IP Right Cessation
- 1979-11-28 IT IT7927653A patent/IT1127644B/it active

Also Published As

Publication number	Publication date
NL180883B (nl)	1986-12-01
FR2443079A1 (fr)	1980-06-27
IT7927653A0 (it)	1979-11-28
DE2947730C2 (de)	1984-04-26
US4272159A (en)	1981-06-09
NL7908628A (nl)	1980-05-30
GB2038022A (en)	1980-07-16
DE2947730A1 (de)	1980-07-10
GB2038022B (en)	1983-05-05
CA1128347A (en)	1982-07-27
FR2443079B1 (it)	1982-12-03
IT1127644B (it)	1986-05-21

Legal Events

Date	Code	Title	Description
1980-06-10	A1A	A request for search or an international-type search has been filed
1980-07-25	BB	A search report has been drawn up
1980-11-25	BC	A request for examination has been filed
1985-01-01	A85	Still pending on 85-01-01
1986-03-17	CNR	Transfer of rights (patent application after its laying open for public inspection)	Free format text: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
2000-02-01	V4	Discontinued because of reaching the maximum lifetime of a patent	Free format text: 19991128

Publication	Publication Date	Title
NL180883B (nl)	1986-12-01	Optische circulator.
NL7613968A (nl)	1977-06-21	Optische schakelinrichting.
NL7901042A (nl)	1979-08-17	Optisch meetstelsel.
NL182754C (nl)	1988-05-02	Optische golfgeleider.
IT7921053A0 (it)	1979-03-16	Lettore ottico.
IT7921466A0 (it)	1979-03-30	Accoppiatore ottico.
NL7703232A (nl)	1978-09-27	Optische aftastinrichting.
NL186711C (nl)	1991-02-01	Optische vezel.
IT7919524A0 (it)	1979-01-23	Moltiplatore e demultiplatore ottico.
IT7922479V0 (it)	1979-09-07	Dispositivo ottico di illuminazione.
NL7801720A (nl)	1978-08-24	Optische koppelinrichting.
NO810101L (no)	1981-01-13	Optiske sleperinger.
NL7611744A (nl)	1977-04-26	Optische vezel.
NL7902254A (nl)	1979-09-25	Optisch orgaan.
NL186540C (nl)	1990-12-17	Optische vezel.
IT7928123A0 (it)	1979-12-18	Accoppiatore ottico perfezionato.
NL188345C (nl)	1992-06-01	Optische vezel.
NO790345L (no)	1979-08-07	Lense.
NL7610393A (nl)	1977-03-22	Optische vezel.
NL7801870A (nl)	1979-08-22	Optische platenspeler.
NL183211C (nl)	1988-08-16	Optische modulatie-inrichting.
AT384682B (de)	1987-12-28	Objektiv
NL7904481A (nl)	1979-12-11	Optische kop.
NL7900428A (nl)	1979-07-24	Optisch koppelstuk.
NL7608107A (nl)	1977-03-24	Optische vezel.