High-power passively Q-switched Nd:YVO4 UV laser at 355 nm

Y. J. Huang, Y. P. Huang, P. Y. Chiang, H. C. Liang, Kuan-Wei Su, Yung-Fu Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We report on an efficient high-power passively Q-switched UV laser at 355 nm. We take into account the second threshold criterion and the thermal-lensing effect to design and realize a compact reliable passively Q-switched Nd:YVO 4 laser with Cr 4+:YAG as a saturable absorber. At an incident pump power of 16.3 W, the average output power at 1064 nm reaches 6.2 W with a pulse width of 7 ns and a pulse repetition rate of 56 kHz. Employing the developed passively Q-switched laser to perform the extra-cavity harmonic generations, the maximum average output powers at 532 nm and 355 nm are up to 2.2 W and 1.62 W, respectively.

Original languageEnglish
Pages (from-to)893-898
Number of pages6
JournalApplied Physics B: Lasers and Optics
Issue number4
StatePublished - 1 Mar 2012


  • Output Coupler
  • Saturable Absorber
  • Average Output Power
  • Laser Crystal
  • Incident Pump Power


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