Hysteresis loop and pattern from the dual-wavelength competition in an Nd:YVO4 laser with an intracavity periodically-poled lithium niobate Bragg modulator

Kun Guei Hong, Shoutai Lin, Ming Dar Wei

研究成果: Conference contribution

摘要

This study demonstrates hysteresis loop and pattern formation in a Nd:YVO4 laser at 1064nm (4F3/24I11/2) and 1342nm (4F3/24I13/2) with an intracavity electro-optic periodically poled lithium niobate (EO PPLN) Bragg modulator by using a T-type cavity configuration. Based on these dual wavelengths sharing population inversion in the same upper energy level to lase, the transmission, Tp, of EO PPLN was chosen as the controlling parameter to explore the dynamics of dualwavelength competition. A hysteresis loop occurred when the extracting efficiencies of dual wavelength were near equivalent. When the pump power was 9.0 W, the hysteresis loop was observed in the region of the transmission of PPLN between Tp=64.88% to Tp=84.47%. The slope efficiencies were 25.96 and 3.92% and the thresholds were 2.5 and 3.5 W for the wavelengths of 1064 and 1342 nm, respectively. The width of the hysteresis loop increased when the pump power increased. Moreover, the hysteresis loop accompanied with the variation of the pattern formation. A high-order transvers mode was easily observed at 1342 nm light, but a simple spot existed for 1064 nm light. Apparently, the role of gain competition is worthy to deeply explore.

原文English
主出版物標題Laser Beam Shaping XV
編輯Andrew Forbes, Todd E. Lizotte
發行者SPIE
ISBN(電子)9781628412215
DOIs
出版狀態Published - 2014 一月 1
事件Laser Beam Shaping XV - San Diego, United States
持續時間: 2014 八月 172014 八月 19

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9194
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Other

OtherLaser Beam Shaping XV
國家/地區United States
城市San Diego
期間14-08-1714-08-19

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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