| 講演名 | 2011-11-17 Rotation phenomena of speckle patterns observed in an output light spot from an optical fiber , |
|---|---|
| PDFダウンロードページ |  PDFダウンロードページへ |
| 抄録(和) | |
| 抄録(英) | When coherent light beams (laser beams) are incident on one end of an optical fiber, transmitted to another end to exit from there so as to form an output light spot on a screen, non-uniform intensity distribution called speckle patterns is often recognized in the output light spot. The authors have confirmed that when a multimode optical bare fiber is placed in a loop onto a support plate, the speckle patterns in the output light spot appear to rotate while rotating the support plate. In this paper, even when an optical fiber was placed in a U-shape, instead of a loop, onto the support plate, the similar rotation of speckle pattern was observed. Furthermore, it was confirmed that a distance between the optical fiber placed in parallel at the edge of the support plate provides certain influences on the observed rotating characteristics of the speckle patterns. Thus, the pattern rotation seems to be caused by upward and downward displacements of the optical fiber at the edge of the support plate. In addition, even in the case where a jacket-covered and connector-attached optical fiber was placed in the U-shape on the support plate and a laser diode was employed as a light source, similar speckle pattern rotation was recognized. |
| キーワード(和) | |
| キーワード(英) | Optical fiber / Speckle pattern / Coherent light / laser light / Sensing |
| 資料番号 | EMD2011-74 |
| 発行日 |
| 研究会情報 | |
| 研究会 | EMD |
|---|---|
| 開催期間 | 2011/11/10(から1日開催) |
| 開催地（和） | |
| 開催地（英） | |
| テーマ（和） | |
| テーマ（英） | |
| 委員長氏名（和） | |
| 委員長氏名（英） | |
| 副委員長氏名（和） | |
| 副委員長氏名（英） | |
| 幹事氏名（和） | |
| 幹事氏名（英） | |
| 幹事補佐氏名（和） | |
| 幹事補佐氏名（英） | |
| 講演論文情報詳細 | |
| 申込み研究会 | Electromechanical Devices (EMD) |
|---|---|
| 本文の言語 | ENG |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Rotation phenomena of speckle patterns observed in an output light spot from an optical fiber |
| サブタイトル（和） | |
| キーワード(1)（和/英） | / Optical fiber |
| 第 1 著者 氏名（和/英） | / Yusuke TAKAHASHI |
| 第 1 著者 所属（和/英） | Chitose Institute of Science & Technology |
| 発表年月日 | 2011-11-17 |
| 資料番号 | EMD2011-74 |
| 巻番号（vol） | vol.111 |
| 号番号（no） | 299 |
| ページ範囲 | pp.- |
| ページ数 | 6 |
| 発行日 | |