Presentation 2023-03-03
Analysis of pattern changes in an output light spot from an optical fiber with an RIPOC method
Ryusei Sato, Makoto Hasegawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) When laser light beams are allowed to propagate from one end of an optical fiber to the other end and further to be output onto a screen, irregular pattern called as speckle pattern can be observed in an output light spot. The authors previously reported the rotating phenomenon of speckle pattern when the optical fiber was placed onto a support plate in a loop-shape and the support plate was tilted. In this paper, an analysis procedure of a rotation angle of the speckle pattern in such rotation phenomenon has been studied through comparison between the results obtained from measurements utilizing an RIPOC method and the results obtained from manual measurements with an image processing software. As a result, the RIPOC method was confirmed to provide the rotation angle values close to the values obtained from the manual measurements. The obtained rotation angle values were confirmed be almost a half of the tilt angle of the support plate.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optic fiber / Speckle pattern / Laser light beams / Sensing / POC / RIPOC
Paper # EMD2022-27
Date of Issue 2023-02-24 (EMD)

Conference Information
Committee EMD
Conference Date 2023/3/3(1days)
Place (in Japanese) (See Japanese page)
Place (in English) NIT and Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Short NOTE, etc.
Chair Takahiro Ueno(Nippon Inst. of Tech.)
Vice Chair
Secretary (NAIST)
Assistant Yoshiki Kayano(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Electromechanical Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analysis of pattern changes in an output light spot from an optical fiber with an RIPOC method
Sub Title (in English)
Keyword(1) Optic fiber
Keyword(2) Speckle pattern
Keyword(3) Laser light beams
Keyword(4) Sensing
Keyword(5) POC
Keyword(6) RIPOC
1st Author's Name Ryusei Sato
1st Author's Affiliation Chitose Institute of Science and Technology(Chitose Instit. of Science and Technology)
2nd Author's Name Makoto Hasegawa
2nd Author's Affiliation Chitose Institute of Science and Technology(Chitose Instit. of Science and Technology)
Date 2023-03-03
Paper # EMD2022-27
Volume (vol) vol.122
Number (no) EMD-416
Page pp.pp.35-40(EMD),
#Pages 6
Date of Issue 2023-02-24 (EMD)