Ultra-narrow linewidth in continuous-wave external cavity diamond Raman laser

Yunpeng Cai, Hui Chen, Feng Gao, Zhenxu Bai, Yaoyao Qi, Yulei Wang, Zhiwei Lu, Jie Ding*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A continuous-wave narrow linewidth diamond Raman laser based on an intracavity frequency doubling structure was demonstrated. Linewidth narrowing and power enhancement were realized by tuning the phase matching in the second-harmonic generation element through temperature control. A maximum output power of 5 W at 592 nm with a linewidth of 72 MHz was obtained using a Yb doped fiber laser with a power of 40 W and a linewidth of >4 GHz, an enhancement of the linewidth by a factor of about 65. The results indicate that high-power and narrow linewidth lasers can be produced utilizing diamond Raman conversion combined with the phase matching in the second-harmonic generation element.

Original languageEnglish
Article number111254
Pages (from-to)1-5
Number of pages5
JournalDiamond and Related Materials
Volume146
DOIs
Publication statusPublished - Jun 2024

Keywords

  • Diamond Raman laser
  • Narrow linewidth
  • Phase matching
  • Temperature control

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