Presentation 2014-12-19
An experimental study on changes in speckle patterns to be induced by load application onto an optical fiber
Makoto HASEGAWA, Yuta SHIMIZU, Takuya NAKAMARU,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) When a certain load is being applied onto an jacket-covered communication-grade multimode glass optical fiber through which laser beams form a laser diode as a light source is propagating, some changes can be recognized in speckle patterns to be observed in an output light spot from the fiber. In the load range up to 15kg, an area covered by distributed patterns (a diameter of the output light spot) is reduced with increasing the applied load, and the counted number of speckles in the pattern is also reduced. In contrast, with gradual decreases in the applied load level from 15kg, the area covered by distributed patterns (a diameter of the output light spot) as well as the counted number of speckles are likely to increase toward their original state. Relatively good repeatabilities can be found in such characteristics. In addition, when a photovoltaic panel was irradiated with the whole output light spot, its output voltage shows changes in accordance with changes in the counted number of speckles in the pattern.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Speckle pattern / Optical fiber / Load / Sensing
Paper # EMD2014-100
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Conference Information
Committee EMD
Conference Date 2014/12/12(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An experimental study on changes in speckle patterns to be induced by load application onto an optical fiber
Sub Title (in English)
Keyword(1) Speckle pattern
Keyword(2) Optical fiber
Keyword(3) Load
Keyword(4) Sensing
1st Author's Name Makoto HASEGAWA
1st Author's Affiliation Faculty of Photonics Science()
2nd Author's Name Yuta SHIMIZU
2nd Author's Affiliation Faculty of Photonics Science
3rd Author's Name Takuya NAKAMARU
3rd Author's Affiliation Faculty of Photonics Science
Date 2014-12-19
Paper # EMD2014-100
Volume (vol) vol.114
Number (no) 382
Page pp.pp.-
#Pages 6
Date of Issue