Abstract
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 language | English |
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Pages (from-to) | 893-898 |
Number of pages | 6 |
Journal | Applied Physics B: Lasers and Optics |
Volume | 106 |
Issue number | 4 |
DOIs | |
State | Published - 1 Mar 2012 |
Keywords
- Output Coupler
- Saturable Absorber
- Average Output Power
- Laser Crystal
- Incident Pump Power