| 講演抄録/キーワード |
| 講演名 |
2023-12-22 14:25
Development of detection scheme for speckle pattern changes in an output light spot from an optical fiber with a PIV method ○Takato Chiba・Makoto Hasegawa(Chitose Inst. of Science & Technology) EMD2023-35 |
| 抄録 |
(和) |
When visible laser beams are input into a multi-mode optical fiber (MMF) from its one end and are allowed to travel therein to output from another end onto a screen, non-uniform granular patterns can be observed in the output light spot. Such patterns are often called as speckle pattern. The authors’ research group is trying to investigate the speckle pattern movements to be obtained upon application of external disturbances onto the optical fiber with FFT correlation in the PIV method to continuously reproduce the movements. In this paper, appropriate parameter determinations and statistic process procedures are mainly discussed. The obtained data distribution was found to be derived from normal distribution, and appropriate parameter determinations were confirmed to be effective for improving temporal preciseness. |
| (英) |
When visible laser beams are input into a multi-mode optical fiber (MMF) from its one end and are allowed to travel therein to output from another end onto a screen, non-uniform granular patterns can be observed in the output light spot. Such patterns are often called as speckle pattern. The authors’ research group is trying to investigate the speckle pattern movements to be obtained upon application of external disturbances onto the optical fiber with FFT correlation in the PIV method to continuously reproduce the movements. In this paper, appropriate parameter determinations and statistic process procedures are mainly discussed. The obtained data distribution was found to be derived from normal distribution, and appropriate parameter determinations were confirmed to be effective for improving temporal preciseness. |
| キーワード |
(和) |
Optical fiber / Sensing / PIV / Image processing / Speckle pattern / Sattistic processing / / |
| (英) |
Optical fiber / Sensing / PIV / Image processing / Speckle pattern / Sattistic processing / / |
| 文献情報 |
信学技報, vol. 123, no. 324, EMD2023-35, pp. 19-24, 2023年12月. |
| 資料番号 |
EMD2023-35 |
| 発行日 |
2023-12-15 (EMD) |
| ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
EMD2023-35 |