WO2000051269B1 - High order spatial mode optical fiber - Google Patents

High order spatial mode optical fiber

Info

Publication number
WO2000051269B1
WO2000051269B1 PCT/US2000/004581 US0004581W WO0051269B1 WO 2000051269 B1 WO2000051269 B1 WO 2000051269B1 US 0004581 W US0004581 W US 0004581W WO 0051269 B1 WO0051269 B1 WO 0051269B1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
high order
mode
waveguide
dispersion
Prior art date
Application number
PCT/US2000/004581
Other languages
French (fr)
Other versions
WO2000051269A1 (en
WO2000051269A8 (en
WO2000051269A9 (en
Inventor
Yochay Danziger
Eran Herman
Michael Roseblit
David Menashe
Original Assignee
Lasercomm 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
Priority claimed from US09/510,027 external-priority patent/US6418256B1/en
Priority claimed from US09/507,001 external-priority patent/US6360045B1/en
Application filed by Lasercomm Inc filed Critical Lasercomm Inc
Priority to AU38602/00A priority Critical patent/AU3860200A/en
Publication of WO2000051269A1 publication Critical patent/WO2000051269A1/en
Publication of WO2000051269B1 publication Critical patent/WO2000051269B1/en
Publication of WO2000051269A8 publication Critical patent/WO2000051269A8/en
Publication of WO2000051269A9 publication Critical patent/WO2000051269A9/en

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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
    • 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
    • G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
    • G02B6/02009—Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
    • G02B6/02023—Based on higher order modes, i.e. propagating modes other than the LP01 or HE11 fundamental mode
    • 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02228—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range
    • G02B6/02238—Low dispersion slope fibres
    • G02B6/02242—Low dispersion slope fibres having a dispersion slope <0.06 ps/km/nm2
    • 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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2581—Multimode transmission
    • 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02252—Negative dispersion fibres at 1550 nm
    • G02B6/02257—Non-zero dispersion shifted fibres, i.e. having a small negative dispersion at 1550 nm, e.g. ITU-T G.655 dispersion between - 1.0 to - 10 ps/nm.km for avoiding nonlinear effects
    • 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02266—Positive dispersion fibres at 1550 nm
    • G02B6/02271—Non-zero dispersion shifted fibres, i.e. having a small positive dispersion at 1550 nm, e.g. ITU-T G.655 dispersion between 1.0 to 10 ps/nm.km for avoiding nonlinear effects

Abstract

The invention relates to method and apparatus for transmitting an optical signal having optical energy substantially in a high order spatial mode. The optical waveguide, in one embodiment, includes a few mode fiber designed to have specific transmission characteristics for supporting the single high order spatial mode, and the few mode fiber transmits the single high order spatial mode. The optical waveguide, in one embodiment, has a dispersion and a dispersion slope for a given transmission bandwidth. Another aspect of the invention includes a method for transmitting an optical signal having optical energy substantially in a single high order spatial mode. The method includes the steps of providing a few mode fiber, which supports optical energy in the single high order spatial mode. In one embodiment, the single high order spatial mode is the LP02 spatial mode. In another embodiment, the few mode fiber supports an optical signal having optical energy having less than twenty spatial modes.

Claims

21AMENDED CLAIMS[received by the International Bureau on 24 August 2000 (24.08.00); original claims 1-17 and 19 amended; remaining claim unchanged (2 pages)]
1. An optical transmission waveguide for transmitting an optical signal having optical energy substantially in a single high order spatial mode comprising:
a few mode transmission fiber supporting optical communication in said single high order spatial mode, wherein said few mode transmission fiber transmits said single high order spatial mode.
2. The optical transmission waveguide of claim 1 wherem said single high order spatial mode is the LP02 spatial mode.
3. The optical transmission waveguide of claim 1 wherein said few mode transmission fiber supports an optical signal having optical energy having less than twenty spatial modes.
4. The optical transmission waveguide of claim 1 wherein said few mode transmission fiber has an effective area which is greater than 50μm2.
5. The optical transmission waveguide of claim 1 wherein said optical transmission waveguide has a dispersion and a dispersion slope for a given transmission bandwidth.
6. The optical transmission waveguide of claim 5 wherein said dispersion comprises at least material dispersion, and wherein the absolute value of said dispersion is substantially between zero and said material dispersion.
7. The optical transmission waveguide of claim 5 wherein said dispersion of said waveguide is negative over said transmission bandwidth.
8. The optical transmission waveguide of claim 5 wherein said dispersion of said waveguide is positive over said transmission bandwidth.
9. The optical transmission waveguide of claim 5 wherein said dispersion has a nominal value.
10. The optical transmission waveguide of claim 7 wherem said dispersion slope is nominally zero. 22
11. The optical transmission waveguide of claim 7 wherein said dispersion slope is positive.
12. The optical transmission waveguide of claim 7 wherein said dispersion slope is negative.
13. The optical transmission waveguide of claim 8 wherein said dispersion slope is nominally zero.
14. The optical transmission waveguide of claim 8 wherein said dispersion slope is positive.
15. The optical transmission waveguide of claim 8 wherein said dispersion slope is negative.
16. The optical transmission waveguide of claim 5 wherein said dispersion slope has a no ii-al value.
17. A method for 1ι-msmitting an optical signal having optical energy substantially in a single high order spatial mode comprising the steps of:
providing a few mode transmission fiber for transmission of said optical signal, wherein said few mode transmission fiber supports optical communication in said single high order spatial mode;
injecting said optical signal into said few mode transmission fiber; and
transmitting said optical signal through said few mode transmission fiber.
18. The method of claim 17 wherein said single high order spatial mode is the LP02 spatial mode.
19. The method of claim 1 wherein said few mode transmission fiber supports optical energy having less than twenty spatial modes.
PCT/US2000/004581 1999-02-23 2000-02-23 High order spatial mode optical fiber WO2000051269A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38602/00A AU3860200A (en) 1999-02-23 2000-02-23 High order spatial mode optical fiber

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US12132199P 1999-02-23 1999-02-23
US60/121,321 1999-02-23
US09/507,001 2000-02-22
US09/510,027 2000-02-22
US09/510,027 US6418256B1 (en) 1999-02-23 2000-02-22 High order spatial mode optical fiber
US09/507,001 US6360045B1 (en) 1999-02-23 2000-02-22 High order spatial mode transmission system

Publications (4)

Publication Number Publication Date
WO2000051269A1 WO2000051269A1 (en) 2000-08-31
WO2000051269B1 true WO2000051269B1 (en) 2000-11-16
WO2000051269A8 WO2000051269A8 (en) 2001-04-12
WO2000051269A9 WO2000051269A9 (en) 2001-11-22

Family

ID=27382609

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2000/004581 WO2000051269A1 (en) 1999-02-23 2000-02-23 High order spatial mode optical fiber
PCT/US2000/004528 WO2000051268A1 (en) 1999-02-23 2000-02-23 High order spatial mode transmission system

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2000/004528 WO2000051268A1 (en) 1999-02-23 2000-02-23 High order spatial mode transmission system

Country Status (2)

Country Link
AU (1) AU3240100A (en)
WO (2) WO2000051269A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3643774B2 (en) 1998-10-14 2005-04-27 マサチューセッツ インスティテュート オブ テクノロジー Omnidirectional multilayer device for optical waveguides
GB9929344D0 (en) 1999-12-10 2000-02-02 Univ Bath Improvements in or relating to photonic crystal fibres
US6625364B2 (en) 2001-01-25 2003-09-23 Omniguide Communications Low-loss photonic crystal waveguide having large core radius
CA2436151A1 (en) 2001-01-25 2002-08-01 Omniguide Communications Photonic crystal optical waveguides having tailored dispersion profiles
WO2002061467A2 (en) 2001-01-31 2002-08-08 Omniguide Communications Electromagnetic mode conversion in photonic crystal multimode waveguides
US6665481B2 (en) 2001-12-20 2003-12-16 Corning Incorporated Low MPI dispersion compensating fiber
FR2839221B1 (en) 2002-04-29 2006-01-27 Cit Alcatel FIBER FOR COMPENSATION OF THE CHROMATIC DISPERSION CUMULATED IN A NEGATIVE CHROMATIC DISPERSION FIBER
FR2860598B1 (en) * 2003-10-03 2005-12-16 Cit Alcatel SUPRESSION OF MODE (S) FOR PROPAGATION OF UNDESIRABLE SIGNALS BEFORE A MODE CONVERTER
FR2864254B1 (en) * 2003-12-23 2006-03-03 Cit Alcatel HOM MULTIMODE OPTICAL FIBER WITH DISPERSION MANAGEMENT
US7228029B1 (en) * 2005-09-20 2007-06-05 Furukawa Electric North America Inc. Short pulse lasers using large mode area fibers and higher order modes
FR2891058B1 (en) * 2005-09-20 2007-11-02 Draka Comteq France COMPOSITION FIBER OF CHROMATIC DISPERSION AND CUMULATED DISPERSION SLOPE.
US7356232B1 (en) * 2006-08-01 2008-04-08 Furukawa Electric North America Optical fibers for high power applications
KR101858459B1 (en) * 2010-09-03 2018-05-16 오에프에스 피텔 엘엘씨 Dispersion compensating system and dispersion compensating fiber with improved figure of merit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185827A (en) * 1991-09-26 1993-02-09 At&T Bell Laboratories Apparatus for compensating chromatic dispersion in optical fibers
US5802234A (en) * 1997-03-21 1998-09-01 Lucent Technologies, Inc Dispersion compensating optical fiber, and communication system comprising same

Also Published As

Publication number Publication date
WO2000051269A1 (en) 2000-08-31
AU3240100A (en) 2000-09-14
WO2000051269A8 (en) 2001-04-12
WO2000051269A9 (en) 2001-11-22
WO2000051268A1 (en) 2000-08-31
WO2000051268B1 (en) 2000-11-23

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