CA1042693A - Reduction of dispersion in a multimode fiber waveguide with core index fluctuations - Google Patents
Reduction of dispersion in a multimode fiber waveguide with core index fluctuationsInfo
- Publication number
- CA1042693A CA1042693A CA233,398A CA233398A CA1042693A CA 1042693 A CA1042693 A CA 1042693A CA 233398 A CA233398 A CA 233398A CA 1042693 A CA1042693 A CA 1042693A
- Authority
- CA
- Canada
- Prior art keywords
- fiber
- modes
- core
- coupling
- fluctuations
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 91
- 239000006185 dispersion Substances 0.000 title claims abstract description 14
- 230000009467 reduction Effects 0.000 title abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 73
- 238000010168 coupling process Methods 0.000 claims abstract description 73
- 238000005859 coupling reaction Methods 0.000 claims abstract description 73
- 230000005855 radiation Effects 0.000 claims abstract description 32
- 230000002708 enhancing effect Effects 0.000 claims abstract description 8
- 239000013307 optical fiber Substances 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 6
- 239000011162 core material Substances 0.000 description 46
- 238000001228 spectrum Methods 0.000 description 18
- 239000000306 component Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 241001061225 Arcos Species 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 101150097504 LHX1 gene Proteins 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Waveguides (AREA)
- Optical Integrated Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US522435A US3909110A (en) | 1974-11-11 | 1974-11-11 | Reduction of dispersion in a multimode fiber waveguide with core index fluctuations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042693A true CA1042693A (en) | 1978-11-21 |
Family
ID=24080843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA233,398A Expired CA1042693A (en) | 1974-11-11 | 1975-08-13 | Reduction of dispersion in a multimode fiber waveguide with core index fluctuations |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3909110A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS599881B2 (cg-RX-API-DMAC10.html) |
| BE (1) | BE835363A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1042693A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2550524C2 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2290674A1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1521541A (cg-RX-API-DMAC10.html) |
| IT (1) | IT1049045B (cg-RX-API-DMAC10.html) |
| NL (1) | NL7513125A (cg-RX-API-DMAC10.html) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140505A (en) * | 1976-07-12 | 1979-02-20 | International Standard Electric Corporation | Method of manufacturing a limited mode optical fiber |
| US4205901A (en) * | 1975-07-17 | 1980-06-03 | International Standard Electric Corporation | Limited mode optical fiber |
| US4038062A (en) * | 1976-03-25 | 1977-07-26 | Bell Telephone Laboratories, Incorporated | Method and apparatus for introducing geometrical perturbations in optical fiber waveguides |
| US4049413A (en) * | 1976-06-21 | 1977-09-20 | Bell Telephone Laboratories, Incorporated | Method for making optical fibers with variations in core diameter |
| US4053205A (en) * | 1976-07-30 | 1977-10-11 | Bell Telephone Laboratories, Incorporated | Optical fiber having reduced dispersion |
| US4053204A (en) * | 1976-07-30 | 1977-10-11 | Bell Telephone Laboratories, Incorporated | Optical fiber having reduced dispersion |
| CA1042247A (en) * | 1976-08-03 | 1978-11-14 | Frederick D. King | Reduction of modal and chromatic material dispersion in a multimode optical fiber |
| US4093343A (en) * | 1976-09-22 | 1978-06-06 | Bell Telephone Laboratories, Incorporated | Optical waveguide having periodic spatial perturbations |
| US4179187A (en) * | 1977-08-12 | 1979-12-18 | Corning Glass Works | Multiple mode waveguide having cylindrical perturbations |
| US4163601A (en) * | 1977-08-12 | 1979-08-07 | Corning Glass Works | Multimode waveguide with enhanced coupling with guided modes |
| US4308045A (en) * | 1978-03-10 | 1981-12-29 | Bell Telephone Laboratories, Incorporated | Method for fabricating optical fibers with enhanced mode coupling |
| US4372645A (en) * | 1978-03-10 | 1983-02-08 | Bell Telephone Laboratories, Incorporated | Optical fiber with enhanced mode coupling |
| US4236786A (en) * | 1978-12-13 | 1980-12-02 | Corning Glass Works | Method of effecting coupling of selected modes in an optical waveguide |
| US4212660A (en) * | 1979-03-22 | 1980-07-15 | Corning Glass Works | Method for making multiple mode waveguide having cylindrical perturbations |
| US4474427A (en) * | 1979-05-07 | 1984-10-02 | Canadian Patents & Development Limited | Optical fiber reflective filter |
| US4473273A (en) * | 1981-09-04 | 1984-09-25 | Trw Inc. | High bandwidth fiber and method of forming the same by preform rotation during drawing |
| US4447124A (en) * | 1981-10-27 | 1984-05-08 | Bell Telephone Laboratories, Incorporated | Multimode optical fiber with radially varying attenuation center density |
| DE3213704A1 (de) * | 1982-04-14 | 1984-02-02 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Monomode lichtleitfaser |
| US4630885A (en) * | 1984-03-02 | 1986-12-23 | Northrop Corporation | Multichannel optical wave guide resonator |
| FR2569866B1 (fr) * | 1984-08-28 | 1990-01-19 | Canon Kk | Dispositif de projection |
| US4768854A (en) * | 1985-07-11 | 1988-09-06 | Raychem Corp. | Optical fiber distribution network including nondestructive taps and method using same |
| US4856864A (en) * | 1985-07-11 | 1989-08-15 | Raychem Corporation | Optical fiber distribution network including non-destructive taps and method of using same |
| GB8722200D0 (en) * | 1987-09-21 | 1987-10-28 | British Telecomm | Modifying optical waveguide |
| US5363239A (en) * | 1992-12-23 | 1994-11-08 | At&T Bell Laboratories | Method for forming spatially-varying distributed Bragg reflectors in optical media |
| US5925163A (en) * | 1993-12-27 | 1999-07-20 | Corning, Inc. | Method of making an optical fiber with an axially decreasing group velocity dispersion |
| US5504829A (en) * | 1993-12-27 | 1996-04-02 | Corning Incorporated | Optical fiber for soliton transmission and method of making |
| JP3497298B2 (ja) * | 1995-10-23 | 2004-02-16 | 株式会社フジクラ | 光ファイバフィルタ |
| US6301934B1 (en) * | 1996-02-23 | 2001-10-16 | Corning Incorporated | Method of making a dispersion-managed optical fiber with varying the feed rates of an RIT process |
| US5940567A (en) * | 1998-02-20 | 1999-08-17 | Photon-X, Inc. | Optical fibers having an inner core and an outer core |
| FR2800475A1 (fr) * | 1999-11-03 | 2001-05-04 | Corning Inc | Dispositif photonique planaire et methode de filtrage du bruit optique survenant dans les dispositifs photoniques planaires |
| US6422043B1 (en) | 1999-11-16 | 2002-07-23 | Fitel Usa Corp. | Method of making an improved multimode optical fiber and fiber made by method |
| US6832023B1 (en) * | 2000-05-19 | 2004-12-14 | Georgia Tech Research Corporation | Optical fiber gratings with azimuthal refractive index perturbation, method of fabrication, and devices for tuning, attenuating, switching, and modulating optical signals |
| US6594429B1 (en) * | 2000-10-20 | 2003-07-15 | Lucent Technologies Inc. | Microstructured multimode fiber |
| NL1022315C2 (nl) * | 2003-01-07 | 2004-07-13 | Draka Fibre Technology Bv | Werkwijze ter vervaardiging van een optische vezel voorzien van variaties in de brekingsindex. |
| US6990277B2 (en) * | 2003-04-04 | 2006-01-24 | Fitel Usa Corp. | Enhanced multimode fiber |
| US20080240653A1 (en) * | 2007-03-27 | 2008-10-02 | Jonathan Paul King | Optical coupler including mode-mixing |
| NL1033769C2 (nl) * | 2007-04-27 | 2008-10-28 | Draka Comteq Bv | Werkwijze voor het vervaardigen van een voorvorm alsmede werkwijze voor het uit een dergelijke voorvorm vervaardigen van optische vezels. |
| US20100316070A1 (en) | 2007-09-25 | 2010-12-16 | Mikhail Sumetsky | Asymmetrically perturbed optical fibers for mode transformers |
| US7865050B1 (en) * | 2010-02-16 | 2011-01-04 | Ofs Fitel, Llc | Equalizing modal delay of high order modes in bend insensitive multimode fiber |
| US8666213B2 (en) | 2011-08-22 | 2014-03-04 | Corning Incorporated | Method of making multimode optical fibers |
| DE102011114586A1 (de) * | 2011-09-30 | 2013-04-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Modenfilter mit Brechzahlmodifikation |
| US9484706B1 (en) | 2012-06-12 | 2016-11-01 | Nlight, Inc. | Tapered core fiber manufacturing methods |
| WO2017189863A1 (en) * | 2016-04-28 | 2017-11-02 | Analog Photonics LLC | Optical waveguide device |
| US10921512B2 (en) | 2017-10-02 | 2021-02-16 | Corning Incorporated | Multi-mode optical fiber and methods for manufacturing the same |
| US12493147B2 (en) * | 2018-04-23 | 2025-12-09 | Legrand DPC, LLC | Continuously formed optical fiber with different core profile zones |
| WO2019213163A1 (en) * | 2018-05-01 | 2019-11-07 | Finisar Corporation | Mmf optical mode conditioning device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666348A (en) * | 1970-09-25 | 1972-05-30 | Bell Telephone Labor Inc | Multimode waveguide |
| US3687514A (en) * | 1970-09-25 | 1972-08-29 | Bell Telephone Labor Inc | Reduction of dispersion in multimode waveguide |
| US3831038A (en) * | 1973-09-19 | 1974-08-20 | Western Electric Co | Periodic dielectric waveguide for backward parametric interactions |
| US3891302A (en) * | 1973-09-28 | 1975-06-24 | Western Electric Co | Method of filtering modes in optical waveguides |
-
1974
- 1974-11-11 US US522435A patent/US3909110A/en not_active Expired - Lifetime
-
1975
- 1975-08-13 CA CA233,398A patent/CA1042693A/en not_active Expired
- 1975-10-09 GB GB41507/75A patent/GB1521541A/en not_active Expired
- 1975-11-05 FR FR7533842A patent/FR2290674A1/fr active Granted
- 1975-11-07 BE BE161687A patent/BE835363A/xx not_active IP Right Cessation
- 1975-11-07 IT IT29120/75A patent/IT1049045B/it active
- 1975-11-10 NL NL7513125A patent/NL7513125A/xx not_active Application Discontinuation
- 1975-11-11 DE DE2550524A patent/DE2550524C2/de not_active Expired
- 1975-11-11 JP JP50134788A patent/JPS599881B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE835363A (fr) | 1976-03-01 |
| US3909110A (en) | 1975-09-30 |
| GB1521541A (en) | 1978-08-16 |
| FR2290674B1 (cg-RX-API-DMAC10.html) | 1979-04-27 |
| JPS599881B2 (ja) | 1984-03-06 |
| IT1049045B (it) | 1981-01-20 |
| FR2290674A1 (fr) | 1976-06-04 |
| NL7513125A (nl) | 1976-05-13 |
| DE2550524A1 (de) | 1976-05-13 |
| DE2550524C2 (de) | 1983-06-01 |
| JPS5170653A (cg-RX-API-DMAC10.html) | 1976-06-18 |
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