Distance-Meter Using Self-Coupled Effect of Semiconductor Laser Modulated with Sinusoidal Wave Current

• Ueda Tadashi

  Aichi Institute of Technology

• Yamada Jun

  Aichi Institute of Technology

• Shitou Susumu

  Aichi Institute of Technology

• Tuda Norio

  Aichi Institute of Technology

Bibliographic Information

Other Title

• 正弦波変調による半導体レーザの自己結合効果を利用した距離計
• セイゲンハ ヘンチョウ ニヨル ハンドウタイ レーザ ノ ジコ ケツゴウ コウ

Abstract

A Compact and simple distance meter based on self-coupling effect of semiconductor laser has been developed. Using the interference in the laser resonator with the returned light from the external surface, the sensor of the distance meter is composed of only a laser diode and a lens. As it has no external interference optics, it could be much smaller than the interference measurement. The drive current of the semiconductor laser is modulated with not only a triangular wave current but also a sinusoidal wave current. It is confirmed that the device modulated with sinusoidal wave can measure the distance with the same accuracy as one with triangular wave, and that the former is superior to the latter in the temperature characteristic.<br>The measurement error is found to be below one percent between 20cm and 90cm.

Journal

• IEEJ Transactions on Electronics, Information and Systems

  IEEJ Transactions on Electronics, Information and Systems 117 (7), 954-961, 1997

  The Institute of Electrical Engineers of Japan

Keywords

• 半導体レーザ
• 自己結合効果
• モードホップパルス
• 小型距離計
• 正弦波変調

Details

• CRID: 1390001204608100864
• NII Article ID: 130006843863
• NII Article ID: 10002810872
• NII Book ID: AN10065950
• DOI: 10.1541/ieejeiss1987.117.7_954
• ISSN: 13488155
• ISSN: 03854221
• ISSN: http://id.crossref.org/issn/03854221
• NDL BIB ID: 4248136
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4248136
• Web Site: https://www.jstage.jst.go.jp/article/ieejeiss1987/117/7/117_7_954/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed