Amplified-spontaneous-emission feedback circuit scheme for optical measurement with improved optical power resolutions

• Masuda Hiroji

  Graduate School of Natural Science and Technology, Shimane University

• Biswas Biswajit

  Graduate School of Natural Science and Technology, Shimane University

• Islam MD Syful

  Graduate School of Natural Science and Technology, Shimane University

• Kitamura Kokoro

  Graduate School of Natural Science and Technology, Shimane University

Abstract

We proposed a novel optical power measurement scheme, which significantly improved optical power resolution (OPR) by implementing an amplified-spontaneous-emission feedback circuit (ASEFC) ahead of a conventional optical power meter. The scheme was named “ASEFC scheme.” The ASEFC operates in regions near the lasing threshold. The OPR characteristics of the ASEFC scheme were clarified experimentally. We demonstrated significantly improved OPRs in optical loss measurement of an optical component. The OPRs were less than 0.00014dB, and the sensitivity was greater than 67, at a display resolution of 0.01dB for the power meter.

Journal

• IEICE Communications Express

  IEICE Communications Express 11 (1), 46-51, 2022-01-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• optical power measurement
• resolution
• amplified spontaneous emission
• feedback

Details

• CRID: 1390853567321779968
• NII Article ID: 130008139301
• DOI: 10.1587/comex.2021xbl0189
• ISSN: 21870136
• Web Site: https://www.jstage.jst.go.jp/article/comex/11/1/11_2021XBL0189/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed