Solid State and Liquid Lasers

Laser Physics

, Volume 19, Issue 10, pp 1953-1956

Single-frequency laser at 473 nm by twisted-mode technique

  • E. J. HaoAffiliated withHeping Campus of Jilin University Email author 
  • , T. LiAffiliated withChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
  • , H. M. TanAffiliated withChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
  • , L. Q. ZhangAffiliated withHeping Campus of Jilin University
  • , Y. ZhangAffiliated withHeping Campus of Jilin University

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Abstract

We experimentally demonstrate an all solid-state laser producing single-frequency output at 473 nm. Spatial gain hole-burning in the gain material has been eliminated by use of twisted-mode cavity approach. By carefully designing, a V-cavity with two beam waists is chosen to provide the optimum beam radius in the gain medium Nd:YAG and second harmonic generation crystal LBO. A total output power of 105 mW was achieved when the laser was diode-end-pumped at an incident power of 3.5 W; the light-light conversion efficiency is up to 3%.

PACS numbers

42.55.Xi 42.60.By 42.65.Ky 42.70.Mp