WO2000049450A3 - Optical circulator - Google Patents

Optical circulator Download PDF

Info

Publication number
WO2000049450A3
WO2000049450A3 PCT/US2000/004660 US0004660W WO0049450A3 WO 2000049450 A3 WO2000049450 A3 WO 2000049450A3 US 0004660 W US0004660 W US 0004660W WO 0049450 A3 WO0049450 A3 WO 0049450A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical
circulator
additionally
optical circulator
components
Prior art date
Application number
PCT/US2000/004660
Other languages
French (fr)
Other versions
WO2000049450A2 (en
WO2000049450A9 (en
Inventor
Hong-Du Liu
Original Assignee
Sigma Optics Inc
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 Sigma Optics Inc filed Critical Sigma Optics Inc
Priority to AU32431/00A priority Critical patent/AU3243100A/en
Publication of WO2000049450A2 publication Critical patent/WO2000049450A2/en
Publication of WO2000049450A3 publication Critical patent/WO2000049450A3/en
Publication of WO2000049450A9 publication Critical patent/WO2000049450A9/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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

Landscapes

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

Abstract

An optical circulator having a minimum number of optical circulators, resulting in a lowered insertion loss, and a simplified structure for ease of assembly is presented. The optical circulator includes two birefringent crystals (403, 406) separated by a non-reciprocal rotator section (404, 405). Optical circulators according to this invention exhibit reduced polarization mode dispersion. Additionally, the optical path through the optical circulators are free of epoxy, reducing insertion loss. Additionally, the optical circulator includes alignment prisms (402, 407) which insure that light beams traveling through the circulator are parallel with the optical axis of the circulator. The components of the optical circulator can be manufactured in such a way that there is a reduced need for matching individual components. Additionally, assembly is faster because there is no need to control the linear separation between components.
PCT/US2000/004660 1999-02-22 2000-02-22 Optical circulator WO2000049450A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU32431/00A AU3243100A (en) 1999-02-22 2000-02-22 Optical circulator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25540599A 1999-02-22 1999-02-22
US09/255,405 1999-02-22

Publications (3)

Publication Number Publication Date
WO2000049450A2 WO2000049450A2 (en) 2000-08-24
WO2000049450A3 true WO2000049450A3 (en) 2001-02-22
WO2000049450A9 WO2000049450A9 (en) 2001-08-23

Family

ID=22968177

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/004660 WO2000049450A2 (en) 1999-02-22 2000-02-22 Optical circulator

Country Status (2)

Country Link
AU (1) AU3243100A (en)
WO (1) WO2000049450A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112799187A (en) * 2021-04-14 2021-05-14 武汉恩达通科技有限公司 Four-port circulator and optical module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293438A (en) * 1991-09-21 1994-03-08 Namiki Precision Jewel Co., Ltd. Microlensed optical terminals and optical system equipped therewith, and methods for their manufacture, especially an optical coupling method and optical coupler for use therewith
JPH06242401A (en) * 1993-02-16 1994-09-02 Fuji Elelctrochem Co Ltd Three-port type optical circulator
US5574596A (en) * 1995-05-01 1996-11-12 Jds Fitel Inc. Optical circulator
JPH10186278A (en) * 1996-12-19 1998-07-14 Oyo Koden Kenkiyuushitsu:Kk Optical circulator
EP0860731A1 (en) * 1997-02-25 1998-08-26 Hewlett-Packard Company Compact, low crosstalk, three-port optical circulator
JPH11264954A (en) * 1998-03-16 1999-09-28 Fuji Elelctrochem Co Ltd Optical circulator and optical switch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293438A (en) * 1991-09-21 1994-03-08 Namiki Precision Jewel Co., Ltd. Microlensed optical terminals and optical system equipped therewith, and methods for their manufacture, especially an optical coupling method and optical coupler for use therewith
JPH06242401A (en) * 1993-02-16 1994-09-02 Fuji Elelctrochem Co Ltd Three-port type optical circulator
US5574596A (en) * 1995-05-01 1996-11-12 Jds Fitel Inc. Optical circulator
JPH10186278A (en) * 1996-12-19 1998-07-14 Oyo Koden Kenkiyuushitsu:Kk Optical circulator
EP0860731A1 (en) * 1997-02-25 1998-08-26 Hewlett-Packard Company Compact, low crosstalk, three-port optical circulator
JPH11264954A (en) * 1998-03-16 1999-09-28 Fuji Elelctrochem Co Ltd Optical circulator and optical switch

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
KOGA M ET AL: "POLARISATION-INSENSITIVE HIGH-ISOLATION NONRECIPROCAL DEVICE FOR OPTICAL CIRCULATOR APPLICATION", ELECTRONICS LETTERS,GB,IEE STEVENAGE, vol. 27, no. 11, 23 May 1991 (1991-05-23), pages 903 - 905, XP000232426, ISSN: 0013-5194 *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 627 (P - 1834) 29 November 1994 (1994-11-29) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 14 22 December 1999 (1999-12-22) *

Also Published As

Publication number Publication date
AU3243100A (en) 2000-09-04
WO2000049450A2 (en) 2000-08-24

Similar Documents

Publication Publication Date Title
EP0782029A1 (en) Optical appatatus
US5768005A (en) Multi-stage optical isolator
US5706371A (en) Optical isolator array device
CA2237319C (en) Device for focusing light through an optical component
US20020131171A1 (en) Optical fiber polarization independent non-reciprocal phase shifter
EP0391703A3 (en) Quasi-achromatic optical isolators and circulators using prisms with total internal fresnel reflection
US6757101B2 (en) None-mechanical dual stage optical switches
US4761050A (en) Optical switching device including polarization preserving coupler utilizing Kerr effect and method of using same
EP0661579A1 (en) Optical isolator without polarization mode dispersion
EP0945750A3 (en) Polarizing beam splitter/combiner
US20030113055A1 (en) Solid-state optical wavelength switches
US20150192805A1 (en) Optical Isolator, Attenuator, Circulator and Switch
US20020044710A1 (en) Optical fiber non-reciprocal phase shifter
US7173762B2 (en) Optical isolator with reduced insertion loss and minimized polarization mode dispersion
EP1061406A3 (en) A polarization independent light switching device based on liquid crystal
EP1168035A3 (en) Polarization beam splitter or combiner
US6091543A (en) Apparatus for providing non-reciprocal termination of parallel like polarization modes
US6466704B1 (en) Optical filtering method and device
CN110412780A (en) A kind of integrated free space optical circulator
WO2000049450A3 (en) Optical circulator
EP1113307A2 (en) Optical circulator
KR100299120B1 (en) Optical circulator
US6288826B1 (en) Multi-stage optical isolator
US6493140B1 (en) Polarization splitter and combiner and optical devices using the same
JPH0387814A (en) Optical isolator

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

COP Corrected version of pamphlet

Free format text: PAGES 1/28-28/28, DRAWINGS, REPLACED BY NEW PAGES 1/32-32/32; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

122 Ep: pct application non-entry in european phase