Dual-frequency continuous wave optical parametric oscillator

Bingjie Sun, Xin Wang, Suhui Yang, Kun Li

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

Abstract

This article shows a dual-frequency OPO with multi-grating (28.5-31.5 μm) periodically poled MgO:LiNbO3 (MgO:PPLN) pumped by a dual-frequency continuous wave at 1.064 μm. The wavelengths of idler and signal varying versus temperature at different periods of inverted domains were numerical simulated. It proves that as the temperature rises, or as the poling period increases, the idler wavelength shortens and signal wavelength lengthens. The pump is a 30 W dual-frequency fiber laser MOPA with beat note frequency varying from 125 MHz to 175 MHz. The pump threshold of the bow-tie ring cavity OPO was 3 W. An average dual-frequency idler output power of 2.6 W was obtained when the pump power was 17.2 W at 45 °C. The idler wavelength was 3.4 μm when the poling period was 30.5 μm. The idler wavelength could be tuned from 2.9 μm to 3.9 μm by changing the temperature and the poling period, and the beat note frequency was proved to be equal to that of the pump.

Original languageEnglish
Title of host publication2017 International Conference on Optical Instruments and Technology
Subtitle of host publicationAdvanced Laser Technology and Applications
EditorsChunqing Gao, Jayanta Kumar Sahu, Franz X. Kartner, Franz X. Kartner, Zhiyi Wei, Pu Wang
PublisherSPIE
ISBN (Electronic)9781510617490
DOIs
Publication statusPublished - 2018
Event2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, OIT 2017 - Beijing, China
Duration: 28 Oct 201730 Oct 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10619
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, OIT 2017
Country/TerritoryChina
CityBeijing
Period28/10/1730/10/17

Keywords

  • Dual-frequency laser
  • Mid-infrared laser
  • Optical parametric oscillator
  • Quasi-phase match

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