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Narrow-linewidth all-solid-state Nd:YVO4 single-frequency laser with electro-optic frequency modulation based on PIN-PMN-PT crystal

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Frequency-modulated single-longitudinal mode lasers are widely used as light sources in coherent lidars because of their narrow linewidth and long coherence length. Electro-optic frequency tuning has a fast tuning speed but usually requires a high applied voltage due to the limited electro-optic coefficient. To reduce the required voltage, we used a new type of electro-optic crystal with a high electro-optic coefficient of 910pm/V. In this study, we focused on its performance of frequency modulation in the solid-state laser. We obtained a frequency tuning range of 1.8 GHz at a 280 V voltage. The linewidth of the laser was 61 kHz. We confirmed the capability of PIN-PMN-PT crystal to reduce the applied voltage in frequency tuning and provided some insights into electro-optic frequency modulation.

Original languageEnglish
Title of host publicationFourteenth National Conference on Photonics
EditorsYongkang Dong, Hongwei Li
PublisherSPIE
ISBN (Electronic)9781510699182
DOIs
StatePublished - 2 Dec 2025
Event14th National Conference on Photonics - Harbin, China
Duration: 15 Aug 202517 Aug 2025

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13986
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference14th National Conference on Photonics
Country/TerritoryChina
CityHarbin
Period15/08/2517/08/25

Keywords

  • Fabry-Perot etalon
  • PIN-PMN-PT crystal
  • electro-optic frequency modulation
  • narrow linewidth
  • single-longitudinal mode laser

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