Experimental Study on Transformation of Laser Beam Intensity Distribution by Deformable Mirrors

• Nemoto Koshichi

  CRIEPI

• Fujii Takashi

  CRIEPI

• Goto Naohiko

  CRIEPI

• Nayuki Takuya

  CRIEPI

• Kanai Yoshikazu

  Leonix

Bibliographic Information

Other Title

• デフォーマブルミラーを用いたレーザビームの強度分布変換
• デフォーマブルミラー オ モチイタ レーザ ビーム ノ キョウド ブンプ ヘン

Abstract

We developed a deformable mirror whose surface profile is slightly deformed by nine actuators and varies the phase profile of a reflected laser beam. After Fresnel propagation, the complex amplitude of the reflected laser beam is transformed into another complex amplitude whose profile is different from that of the initial laser beam. Thus, the intensity profile of the reflected laser beam is transformed into another intensity profile with conservation of spatial coherency. We achieved reshaping of a circular-cross-section Gaussian laser (He-Ne:633nm) beam into a rectangular-cross-section beam using a deformable mirror for the first time. The wavefront of the transformed laser beam has a profile similar to that predicted by a beam propagation simulation.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 116 (4), 319-327, 1996

  The Institute of Electrical Engineers of Japan

Keywords

• レーザ
• ビーム整形
• デフォーマブルミラー
• 強度分布変換
• アダプティブオプティクス

Details

• CRID: 1390282679576670848
• NII Article ID: 10002819306
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms1990.116.4_319
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 3947178
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3947178
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms1990/116/4/116_4_319/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed