Narrow-linewidth laser diode with compact optical-feedback system

K. Aoyama, R. Yoshioka, N. Yokota, H. Yasaka, W. Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A compact narrow-linewidth semiconductor laser source is demonstrated. Spectral linewidth of a single-mode laser diode (LD) utilized as this source can be reduced significantly by using a compact optical negative feedback system, which requires only two optical components, namely a lens and an optical filter. Our numerical analysis predicts that the spectral linewidth of LDs can be reduced by 40 dB by the proposed compact and simple optical negative feedback system. A proof-of-concept experiment confirms that the proposed system reduces the linewidth of a distributed-feedback laser from 6.4 MHz to 6.5 kHz (i.e., a reduction ratio of 30 dB). The proposed light source can be formed as a compact integrated light source by integrating a waveguide-type optical filter with a LD.

Original languageEnglish
Title of host publication2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages79-81
Number of pages3
ISBN (Electronic)9784885522901
DOIs
Publication statusPublished - 2014 Dec 19
Event2014 International Topical Meeting on Microwave Photonics, MWP 2014 and the 9th Asia-Pacific Microwave Photonics Conference, APMP 2014 - Sapporo, Japan
Duration: 2014 Oct 202014 Oct 23

Publication series

Name2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings

Other

Other2014 International Topical Meeting on Microwave Photonics, MWP 2014 and the 9th Asia-Pacific Microwave Photonics Conference, APMP 2014
CountryJapan
CitySapporo
Period14/10/2014/10/23

Keywords

  • Fabry-Perot etalon
  • Laser diode
  • optical negative feedback
  • spectral linewidth

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Aoyama, K., Yoshioka, R., Yokota, N., Yasaka, H., & Kobayashi, W. (2014). Narrow-linewidth laser diode with compact optical-feedback system. In 2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings (pp. 79-81). [6994495] (2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWP.2014.6994495