GB2469012A - Optical pulse propagation - Google Patents
Optical pulse propagation Download PDFInfo
- Publication number
- GB2469012A GB2469012A GB0823038A GB0823038A GB2469012A GB 2469012 A GB2469012 A GB 2469012A GB 0823038 A GB0823038 A GB 0823038A GB 0823038 A GB0823038 A GB 0823038A GB 2469012 A GB2469012 A GB 2469012A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse
- pulses
- probe
- composite pulse
- composite
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 abstract 5
- 239000000523 sample Substances 0.000 abstract 5
- 230000001934 delay Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
- 230000001902 propagating effect Effects 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 abstract 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
- G01M11/3127—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using multiple or wavelength variable input source
-
- 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
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
- H04B10/25137—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using pulse shaping at the transmitter, e.g. pre-chirping or dispersion supported transmission [DST]
-
- 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
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
- H04B10/2519—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using Bragg gratings
-
- 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
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
-
- 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
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
- H04B10/255—Self-phase modulation [SPM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A method for propagating short optical pulses comprises constructing a composite pulse (22) comprising a probe pulse (10) flanked by a pair of guard pulses (16, 18) of different wavelength from the probe pulse. These pulses have respective temporal delays so that the composite pulse has a central portion in which the intensity is substantially constant with time. This protects the probe pulse from self-phase modulation (SPM) during propagation of the composite pulse through an optical fibre; only the external edges of the guard pulses undergo SPM. After propagation, the guard pulses are filtered out, leaving an undistorted probe pulse for detection. In some embodiments, the composite pulse contains a plurality of probe pulses, which may have different wavelengths. Various apparatus can be used for generation of the composite pulse.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB2006/002083 WO2007141464A1 (en) | 2006-06-07 | 2006-06-07 | Optical pulse propagation |
Publications (5)
Publication Number | Publication Date |
---|---|
GB0823038D0 GB0823038D0 (en) | 2009-01-28 |
GB2469012A true GB2469012A (en) | 2010-09-29 |
GB2469012B GB2469012B (en) | 2015-02-18 |
GB2469012B8 GB2469012B8 (en) | 2015-06-17 |
GB2469012A8 GB2469012A8 (en) | 2015-06-17 |
Family
ID=37762387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0823038.5A Active GB2469012B8 (en) | 2006-06-07 | 2006-06-07 | Optical pulse propagation |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2469012B8 (en) |
WO (1) | WO2007141464A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9110018B2 (en) | 2010-12-08 | 2015-08-18 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9304017B2 (en) | 2010-11-11 | 2016-04-05 | Fotech Solutions Limited | Distributed optical fibre sensor |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7668411B2 (en) | 2008-06-06 | 2010-02-23 | Schlumberger Technology Corporation | Distributed vibration sensing system using multimode fiber |
US7859654B2 (en) | 2008-07-17 | 2010-12-28 | Schlumberger Technology Corporation | Frequency-scanned optical time domain reflectometry |
US7526149B1 (en) * | 2008-07-21 | 2009-04-28 | Qorex, Llc | Dual wavelength strain-temperature Brillouin sensing system and method |
WO2010045286A1 (en) | 2008-10-14 | 2010-04-22 | Schlumberger Canada Limited | Polarization-diverse, heterodyne optical receiving system |
US10359302B2 (en) | 2015-12-18 | 2019-07-23 | Schlumberger Technology Corporation | Non-linear interactions with backscattered light |
JP7385867B2 (en) * | 2020-06-12 | 2023-11-24 | 鹿島建設株式会社 | Strain measurement device, strain measurement method, and strain measurement program |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0700178A2 (en) * | 1994-08-02 | 1996-03-06 | Fujitsu Limited | Optical transmission system with optimisation of transmission conditions |
WO1998030881A1 (en) * | 1997-01-08 | 1998-07-16 | York Sensors Limited | Optical time domain reflectometry method and apparatus |
-
2006
- 2006-06-07 GB GB0823038.5A patent/GB2469012B8/en active Active
- 2006-06-07 WO PCT/GB2006/002083 patent/WO2007141464A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0700178A2 (en) * | 1994-08-02 | 1996-03-06 | Fujitsu Limited | Optical transmission system with optimisation of transmission conditions |
WO1998030881A1 (en) * | 1997-01-08 | 1998-07-16 | York Sensors Limited | Optical time domain reflectometry method and apparatus |
Non-Patent Citations (1)
Title |
---|
Rapp L, "Signal dependence of cross-phase modulation in WDM systems", European Transactions on Telecommunications, Vol. 11, No. 2, March 2000, ISSN: 1124-318X * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9304017B2 (en) | 2010-11-11 | 2016-04-05 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9562826B2 (en) | 2010-11-11 | 2017-02-07 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9574970B2 (en) | 2010-11-11 | 2017-02-21 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9759633B2 (en) | 2010-11-11 | 2017-09-12 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9110018B2 (en) | 2010-12-08 | 2015-08-18 | Fotech Solutions Limited | Distributed optical fibre sensor |
US9244009B2 (en) | 2010-12-08 | 2016-01-26 | Fotech Solutions Limited | Distributed optical fibre sensor |
Also Published As
Publication number | Publication date |
---|---|
GB2469012B8 (en) | 2015-06-17 |
GB2469012B (en) | 2015-02-18 |
WO2007141464A1 (en) | 2007-12-13 |
GB2469012A8 (en) | 2015-06-17 |
GB0823038D0 (en) | 2009-01-28 |
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