Different measures of speckle and coherence at the output of a multimode optical fiber

doi:https://doi.org/10.1364/JOSAA.36.000001

Title: Different measures of speckle and coherence at the output of a multimode optical fiber

Abstract

Excitation of a multimode fiber with a focused spatially coherent light of finite bandwidth results in a partially coherent light at the output of the fiber. In this report, we observe the properties of speckle and classical coherence of such light with analytical theory, numerical modeling, and experimentally. Of particular interest is the relationship between measures of coherence and speckle and their dependence on input source bandwidth and fiber length. Speckle contrast is easy to measure experimentally and there exist at least two different methods to generate ensembles of random speckles. We demonstrate that speckle contrast evaluated over the ensemble of external diffusers is related to the number of effective modes—one of the characteristics of beam global coherence. The other speckle contrast measure evaluated over the ensemble of random bends and twists of the fiber is related to residual coherence, which is the pedestal on the average modulus of the complex degree of the coherence function on the output endface of the fiber.

Authors:

^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: 2018-12-06

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1571610

Alternate Identifier(s):: OSTI ID: 1484401

Report Number(s):: LA-UR-18-27749
Journal ID: ISSN 1084-7529; JOAOD6

Grant/Contract Number:: 89233218CNA000001; AC52-06NA25396

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Journal of the Optical Society of America. A, Optics, Image Science, and Vision

Additional Journal Information:: Journal Volume: 36; Journal Issue: 1; Journal ID: ISSN 1084-7529

Publisher:: Optical Society of America (OSA)

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Efimov, Anatoly. Different measures of speckle and coherence at the output of a multimode optical fiber.  United States: N. p., 2018. 
        Web.  doi:10.1364/JOSAA.36.000001.

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                    Efimov, Anatoly. Different measures of speckle and coherence at the output of a multimode optical fiber.  United States.  https://doi.org/10.1364/JOSAA.36.000001

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                    Efimov, Anatoly. Thu .  
        "Different measures of speckle and coherence at the output of a multimode optical fiber".  United States.  https://doi.org/10.1364/JOSAA.36.000001.  https://www.osti.gov/servlets/purl/1571610.

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@article{osti_1571610,

  title        = {Different measures of speckle and coherence at the output of a multimode optical fiber},

  author       = {Efimov, Anatoly},

  abstractNote = {Excitation of a multimode fiber with a focused spatially coherent light of finite bandwidth results in a partially coherent light at the output of the fiber. In this report, we observe the properties of speckle and classical coherence of such light with analytical theory, numerical modeling, and experimentally. Of particular interest is the relationship between measures of coherence and speckle and their dependence on input source bandwidth and fiber length. Speckle contrast is easy to measure experimentally and there exist at least two different methods to generate ensembles of random speckles. We demonstrate that speckle contrast evaluated over the ensemble of external diffusers is related to the number of effective modes—one of the characteristics of beam global coherence. The other speckle contrast measure evaluated over the ensemble of random bends and twists of the fiber is related to residual coherence, which is the pedestal on the average modulus of the complex degree of the coherence function on the output endface of the fiber.},

  doi          = {10.1364/JOSAA.36.000001},

  url          = {https://www.osti.gov/biblio/1571610},
  journal      = {Journal of the Optical Society of America. A, Optics, Image Science, and Vision},

  issn         = {1084-7529},

  number       = 1,

  volume       = 36,

  place        = {United States},

  year         = {2018},

  month        = {12}

}

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Works referenced in this record:

Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence
journal, January 2002

Ozaktas, Haldun M.; Yüksel, Serdar; Kutay, M. Alper
Journal of the Optical Society of America A, Vol. 19, Issue 8
https://doi.org/10.1364/JOSAA.19.001563

Frequency dependence of modal noise in multimode optical fibers
journal, January 1980

Rawson, Eric G.; Goodman, Joseph W.; Norton, Robert E.
Journal of the Optical Society of America, Vol. 70, Issue 8
https://doi.org/10.1364/JOSA.70.000968

Coherence of laser radiation traveling along an optical fiber
journal, October 1975

Dzhibladze, M. I.; Lezhava, B. S.; Chelidze, T. Ya
Soviet Journal of Quantum Electronics, Vol. 4, Issue 10
https://doi.org/10.1070/QE1975v004n10ABEH011619

Role Of Coherence Concepts In The Study Of Speckle
conference, October 1979

Goodman, Joseph W.
23rd Annual Technical Symposium, SPIE Proceedings
https://doi.org/10.1117/12.957910

Effective number of degrees of freedom of partially coherent sources
journal, January 1982

Starikov, A.
Journal of the Optical Society of America, Vol. 72, Issue 11
https://doi.org/10.1364/JOSA.72.001538

Versatile method for achieving 1% speckle contrast in large-venue laser projection displays using a stationary multimode optical fiber
journal, January 2012

Manni, Jeffrey G.; Goodman, Joseph W.
Optics Express, Vol. 20, Issue 10
https://doi.org/10.1364/OE.20.011288

Experimental Study of Interference in Optical Fibers
journal, March 1967

Suzuki, Takeomi
Japanese Journal of Applied Physics, Vol. 6, Issue 3
https://doi.org/10.1143/JJAP.6.348

Propagation of partial coherence along optical fibres
journal, July 1977

Carpenter, D. J.; Pask, C.
Optics Communications, Vol. 22, Issue 1
https://doi.org/10.1016/0030-4018(77)90256-5

Spectral and Dispersion Analysis of Laser Sources and Multimode Fibres Via the Statistics of the Intensity Pattern
journal, May 1994

Hlubina, Petr
Journal of Modern Optics, Vol. 41, Issue 5
https://doi.org/10.1080/09500349414550941

Matrix treatment for partially polarized, partially coherent beams
journal, January 1998

Gori, Franco
Optics Letters, Vol. 23, Issue 4
https://doi.org/10.1364/OL.23.000241

Programmable shaping of ultrabroad-bandwidth pulses from a Tisapphire laser
journal, January 1995

Efimov, A.; Schaffer, C.; Reitze, D. H.
Journal of the Optical Society of America B, Vol. 12, Issue 10, p. 1968-1980
https://doi.org/10.1364/JOSAB.12.001968

Coherence and Fluctuations in Light Beams
journal, December 1964

Martienssen, W.; Spiller, E.
American Journal of Physics, Vol. 32, Issue 12
https://doi.org/10.1119/1.1970023

Speckle-pattern visibility of light transmitted through a multimode optical fiber
journal, January 1976

Crosignani, B.; Daino, B.; Di Porto, P.
Journal of the Optical Society of America, Vol. 66, Issue 11
https://doi.org/10.1364/JOSA.66.001312

Speckle reduction in pulsed-laser photographs
journal, September 1974

Kohler, D.; Seitz, W. L.; Loree, T. R.
Optics Communications, Vol. 12, Issue 1
https://doi.org/10.1016/0030-4018(74)90065-0

Measurement of very short optical delays in multimode fibers
journal, August 1975

Crosignani, B.; Daino, B.; Di Porto, P.
Applied Physics Letters, Vol. 27, Issue 4
https://doi.org/10.1063/1.88406

Space-time duality and average number of terms in mode decomposition of pulse fields
journal, July 1997

Karelin, N. V.; Lazaruk, A. M.
Radiophysics and Quantum Electronics, Vol. 40, Issue 7
https://doi.org/10.1007/BF02675838

Spatial coherence at the output of multimode optical fibers
journal, January 2014

Efimov, Anatoly
Optics Express, Vol. 22, Issue 13
https://doi.org/10.1364/OE.22.015577

Interference of mode patterns in optical fibers
journal, June 1974

Crosignani, Bruno; Daino, Benedetto; Di Porto, Paolo
Optics Communications, Vol. 11, Issue 2
https://doi.org/10.1016/0030-4018(74)90214-4

Propagation Of Coherence And Very High Resolution Measurements In Optical Fibers.
conference, July 1976

Crosignani, Bruno; Di Porto, Paolo
1976 SPIE/SPSE Technical Symposium East, SPIE Proceedings
https://doi.org/10.1117/12.975712

Long distance active hyperspectral sensing using high-power near-infrared supercontinuum light source
journal, January 2014

Manninen, Albert; Kääriäinen, Teemu; Parviainen, Tomi
Optics Express, Vol. 22, Issue 6
https://doi.org/10.1364/OE.22.007172

Simultaneous scintillation measurements of coherent and partially coherent beams in an open atmosphere experiment
conference, March 2014

Efimov, Anatoly; Velizhanin, Kirill; Gelikonov, Grigory
SPIE LASE, SPIE Proceedings
https://doi.org/10.1117/12.2037416

Lateral-shearing, delay-dithering Mach–Zehnder interferometer for spatial coherence measurement
journal, January 2013

Efimov, Anatoly
Optics Letters, Vol. 38, Issue 22
https://doi.org/10.1364/OL.38.004522

Spatial coherence of the optical field in multimode waveguides
journal, May 1984

Abdullaev, S. S.
Soviet Journal of Quantum Electronics, Vol. 14, Issue 5
https://doi.org/10.1070/QE1984v014n05ABEH005084

How modal noise in multimode fibers depends on source spectrum and fiber dispersion
journal, January 1985

Dandliker, R.; Bertholds, A.; Maystre, F.
Journal of Lightwave Technology, Vol. 3, Issue 1
https://doi.org/10.1109/JLT.1985.1074136

Coherence of an electromagnetic field propagating in a weakly guiding fiber
journal, October 1973

Crosignani, B.; Di Porto, P.
Journal of Applied Physics, Vol. 44, Issue 10
https://doi.org/10.1063/1.1662010

Connection between spatial coherence and modal structure in optical fibers and semiconductor lasers
journal, June 1980

Spano, Paolo
Optics Communications, Vol. 33, Issue 3
https://doi.org/10.1016/0030-4018(80)90241-2

Effective degree of coherence: a second look
journal, January 2015

Blomstedt, Kasimir; Setälä, Tero; Friberg, Ari T.
Journal of the Optical Society of America A, Vol. 32, Issue 5
https://doi.org/10.1364/JOSAA.32.000718

Speckle interferometry for spectral analysis of laser sources and multimode optical waveguides
journal, January 1986

Freude, W.; Fritzsche, C.; Grau, G.
Journal of Lightwave Technology, Vol. 4, Issue 1
https://doi.org/10.1109/JLT.1986.1074634

Coherence and speckle contrast at the output of a stationary multimode optical fiber
journal, January 2018

Efimov, Anatoly
Optics Letters, Vol. 43, Issue 19
https://doi.org/10.1364/OL.43.004767

Crosstalk rejection in parallel optical coherence tomography using spatially incoherent illumination with partially coherent sources
journal, January 2010

Dhalla, Al-Hafeez; Migacz, Justin V.; Izatt, Joseph A.
Optics Letters, Vol. 35, Issue 13
https://doi.org/10.1364/OL.35.002305

Interrelation between the coherence properties and the space-time structure of light beams
journal, October 1980

Pasmanik, G. A.; Sidorovich, V. G.
Radiophysics and Quantum Electronics, Vol. 23, Issue 10
https://doi.org/10.1007/BF01033451

Practical method to derive nonlinear response functions of cameras for scientific imaging
journal, January 2011

Hanaoka, Yoichiro; Suzuki, Isao; Sakurai, Takashi
Applied Optics, Vol. 50, Issue 16
https://doi.org/10.1364/AO.50.002401

Spatial coherence analysis of light propagation in optical fibers by interferometric methods
journal, January 1986

Imai, M.; Ohtsuka, Y.; Satoh, S.
Journal of the Optical Society of America A, Vol. 3, Issue 7
https://doi.org/10.1364/JOSAA.3.001059

Coherence of the electromagnetic field in dielectric waveguides
journal, October 1977

Deryugin, I. A.; Abdullaev, S. S.; Mirzaev, Ag T.
Soviet Journal of Quantum Electronics, Vol. 7, Issue 10
https://doi.org/10.1070/QE1977v007n10ABEH012849

Linear algebraic theory of partial coherence: continuous fields and measures of partial coherence
journal, January 2016

Ozaktas, Haldun M.; Gulcu, Talha Cihad; Alper Kutay, M.
Journal of the Optical Society of America A, Vol. 33, Issue 11
https://doi.org/10.1364/JOSAA.33.002115

Partially coherent light generated by using single and multimode optical fibers in a high‐power Nd:glass laser system
journal, August 1993

Nakano, H.; Miyanaga, N.; Yagi, K.
Applied Physics Letters, Vol. 63, Issue 5
https://doi.org/10.1063/1.109955

Scintillations of a partially coherent beam in a laboratory turbulence: experiment and comparison to theory
conference, March 2015

Efimov, Anatoly
SPIE LASE, SPIE Proceedings
https://doi.org/10.1117/12.2079473

Optical spatial smoothing of Nd-Glass laser beam
journal, January 1988

Véron, D.; Ayral, H.; Gouedard, C.
Optics Communications, Vol. 65, Issue 1
https://doi.org/10.1016/0030-4018(88)90438-5

Optical coherence tomography speckle reduction by a partially spatially coherent source
journal, January 2005

Kim, Jeehyun; Miller, Donald T.; Kim, Eunha
Journal of Biomedical Optics, Vol. 10, Issue 6
https://doi.org/10.1117/1.2138031

Partially coherent beam propagation in atmospheric turbulence [Invited]
journal, January 2014

Gbur, Greg
Journal of the Optical Society of America A, Vol. 31, Issue 9
https://doi.org/10.1364/JOSAA.31.002038

The Van Cittert-Zernike theorem for optical fibres
journal, September 1973

Pask, Colin; Snyder, Allan W.
Optics Communications, Vol. 9, Issue 1
https://doi.org/10.1016/0030-4018(73)90344-1

Visibility of speckle patterns: effect of the optical guide length in coherent light
journal, January 1976

Takahara, Hikaru
Applied Optics, Vol. 15, Issue 3
https://doi.org/10.1364/AO.15.000609

Works referencing / citing this record:

Effects of residual coherence on the scintillation of a partially coherent beam
journal, January 2019

Efimov, Anatoly
Optics Express, Vol. 27, Issue 19
https://doi.org/10.1364/oe.27.026874

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Similar Records

Title: Different measures of speckle and coherence at the output of a multimode optical fiber

Abstract

Citation Formats

Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence journal, January 2002

Frequency dependence of modal noise in multimode optical fibers journal, January 1980

Coherence of laser radiation traveling along an optical fiber journal, October 1975

Role Of Coherence Concepts In The Study Of Speckle conference, October 1979

Effective number of degrees of freedom of partially coherent sources journal, January 1982

Versatile method for achieving 1% speckle contrast in large-venue laser projection displays using a stationary multimode optical fiber journal, January 2012

Experimental Study of Interference in Optical Fibers journal, March 1967

Propagation of partial coherence along optical fibres journal, July 1977

Spectral and Dispersion Analysis of Laser Sources and Multimode Fibres Via the Statistics of the Intensity Pattern journal, May 1994

Matrix treatment for partially polarized, partially coherent beams journal, January 1998

Programmable shaping of ultrabroad-bandwidth pulses from a Tisapphire laser journal, January 1995

Coherence and Fluctuations in Light Beams journal, December 1964

Speckle-pattern visibility of light transmitted through a multimode optical fiber journal, January 1976

Speckle reduction in pulsed-laser photographs journal, September 1974

Measurement of very short optical delays in multimode fibers journal, August 1975

Space-time duality and average number of terms in mode decomposition of pulse fields journal, July 1997

Spatial coherence at the output of multimode optical fibers journal, January 2014

Interference of mode patterns in optical fibers journal, June 1974

Propagation Of Coherence And Very High Resolution Measurements In Optical Fibers. conference, July 1976

Long distance active hyperspectral sensing using high-power near-infrared supercontinuum light source journal, January 2014

Simultaneous scintillation measurements of coherent and partially coherent beams in an open atmosphere experiment conference, March 2014

Lateral-shearing, delay-dithering Mach–Zehnder interferometer for spatial coherence measurement journal, January 2013

Spatial coherence of the optical field in multimode waveguides journal, May 1984

How modal noise in multimode fibers depends on source spectrum and fiber dispersion journal, January 1985

Coherence of an electromagnetic field propagating in a weakly guiding fiber journal, October 1973

Connection between spatial coherence and modal structure in optical fibers and semiconductor lasers journal, June 1980

Effective degree of coherence: a second look journal, January 2015

Speckle interferometry for spectral analysis of laser sources and multimode optical waveguides journal, January 1986

Coherence and speckle contrast at the output of a stationary multimode optical fiber journal, January 2018

Crosstalk rejection in parallel optical coherence tomography using spatially incoherent illumination with partially coherent sources journal, January 2010

Interrelation between the coherence properties and the space-time structure of light beams journal, October 1980

Practical method to derive nonlinear response functions of cameras for scientific imaging journal, January 2011

Spatial coherence analysis of light propagation in optical fibers by interferometric methods journal, January 1986

Coherence of the electromagnetic field in dielectric waveguides journal, October 1977

Linear algebraic theory of partial coherence: continuous fields and measures of partial coherence journal, January 2016

Partially coherent light generated by using single and multimode optical fibers in a high‐power Nd:glass laser system journal, August 1993

Scintillations of a partially coherent beam in a laboratory turbulence: experiment and comparison to theory conference, March 2015

Optical spatial smoothing of Nd-Glass laser beam journal, January 1988

Optical coherence tomography speckle reduction by a partially spatially coherent source journal, January 2005

Partially coherent beam propagation in atmospheric turbulence [Invited] journal, January 2014

The Van Cittert-Zernike theorem for optical fibres journal, September 1973

Visibility of speckle patterns: effect of the optical guide length in coherent light journal, January 1976

Effects of residual coherence on the scintillation of a partially coherent beam journal, January 2019

Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence
journal, January 2002

Frequency dependence of modal noise in multimode optical fibers
journal, January 1980

Coherence of laser radiation traveling along an optical fiber
journal, October 1975

Role Of Coherence Concepts In The Study Of Speckle
conference, October 1979

Effective number of degrees of freedom of partially coherent sources
journal, January 1982

Versatile method for achieving 1% speckle contrast in large-venue laser projection displays using a stationary multimode optical fiber
journal, January 2012

Experimental Study of Interference in Optical Fibers
journal, March 1967

Propagation of partial coherence along optical fibres
journal, July 1977

Spectral and Dispersion Analysis of Laser Sources and Multimode Fibres Via the Statistics of the Intensity Pattern
journal, May 1994

Matrix treatment for partially polarized, partially coherent beams
journal, January 1998

Programmable shaping of ultrabroad-bandwidth pulses from a Tisapphire laser
journal, January 1995

Coherence and Fluctuations in Light Beams
journal, December 1964

Speckle-pattern visibility of light transmitted through a multimode optical fiber
journal, January 1976

Speckle reduction in pulsed-laser photographs
journal, September 1974

Measurement of very short optical delays in multimode fibers
journal, August 1975

Space-time duality and average number of terms in mode decomposition of pulse fields
journal, July 1997

Spatial coherence at the output of multimode optical fibers
journal, January 2014

Interference of mode patterns in optical fibers
journal, June 1974

Propagation Of Coherence And Very High Resolution Measurements In Optical Fibers.
conference, July 1976

Long distance active hyperspectral sensing using high-power near-infrared supercontinuum light source
journal, January 2014

Simultaneous scintillation measurements of coherent and partially coherent beams in an open atmosphere experiment
conference, March 2014

Lateral-shearing, delay-dithering Mach–Zehnder interferometer for spatial coherence measurement
journal, January 2013

Spatial coherence of the optical field in multimode waveguides
journal, May 1984

How modal noise in multimode fibers depends on source spectrum and fiber dispersion
journal, January 1985

Coherence of an electromagnetic field propagating in a weakly guiding fiber
journal, October 1973

Connection between spatial coherence and modal structure in optical fibers and semiconductor lasers
journal, June 1980

Effective degree of coherence: a second look
journal, January 2015

Speckle interferometry for spectral analysis of laser sources and multimode optical waveguides
journal, January 1986

Coherence and speckle contrast at the output of a stationary multimode optical fiber
journal, January 2018

Crosstalk rejection in parallel optical coherence tomography using spatially incoherent illumination with partially coherent sources
journal, January 2010

Interrelation between the coherence properties and the space-time structure of light beams
journal, October 1980

Practical method to derive nonlinear response functions of cameras for scientific imaging
journal, January 2011

Spatial coherence analysis of light propagation in optical fibers by interferometric methods
journal, January 1986

Coherence of the electromagnetic field in dielectric waveguides
journal, October 1977

Linear algebraic theory of partial coherence: continuous fields and measures of partial coherence
journal, January 2016

Partially coherent light generated by using single and multimode optical fibers in a high‐power Nd:glass laser system
journal, August 1993

Scintillations of a partially coherent beam in a laboratory turbulence: experiment and comparison to theory
conference, March 2015

Optical spatial smoothing of Nd-Glass laser beam
journal, January 1988

Optical coherence tomography speckle reduction by a partially spatially coherent source
journal, January 2005

Partially coherent beam propagation in atmospheric turbulence [Invited]
journal, January 2014

The Van Cittert-Zernike theorem for optical fibres
journal, September 1973

Visibility of speckle patterns: effect of the optical guide length in coherent light
journal, January 1976

Effects of residual coherence on the scintillation of a partially coherent beam
journal, January 2019