Presentation 2004-10-15
Perturbation Analysis of Stimulated Brillouin Scattering in an Optical Fiber with a Finite Extinction Ratio
Ken'ichi NISHIGUCHI, Kinzo KISHIDA,
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Abstract(in English) The resolution of strain measurements using Brillouin scattering in an optical fiber depends on the pulse width of a pump laser pulse. It was considered that there was a lower limit for pulse width, since the line width of the Brillouin spectrum was broader for shorter pulses. However, on the contrary, Bao et al. recently discovered a phenomenon in which the line width of the spectrum reduced with a very short pulse when there was light leakage. Such a result suggests the possibility that the resolution of a strain measurement can be improved. In this report, we analyze the phenomenon by solving coupled wave equations by a perturbation method and clarify the cause of the phenomenon.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Brillouin scattering / Lorentz spectrum / strain measurement / perturbation method
Paper # OFT2004-47
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Committee OFT
Conference Date 2004/10/8(1days)
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Registration To Optical Fiber Technology (OFT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Perturbation Analysis of Stimulated Brillouin Scattering in an Optical Fiber with a Finite Extinction Ratio
Sub Title (in English)
Keyword(1) Brillouin scattering
Keyword(2) Lorentz spectrum
Keyword(3) strain measurement
Keyword(4) perturbation method
1st Author's Name Ken'ichi NISHIGUCHI
1st Author's Affiliation Advanced Technology R&D Center, Mitsubishi Electric Co.()
2nd Author's Name Kinzo KISHIDA
2nd Author's Affiliation Neubrex Co., Ltd.
Date 2004-10-15
Paper # OFT2004-47
Volume (vol) vol.104
Number (no) 341
Page pp.pp.-
#Pages 6
Date of Issue