Short pulse width UV laser at 355 nm based on pulse LD side-pumped ceramic Nd:YAG and BBO electro-optical Q-switched |
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Authors: | Y Bai X M Chen B L Lu Z Y Ren J T Bai |
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Institution: | 1.National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), Institute of Photonics and Photon-Technology,Northwest University,Xi’an,China;2.Shaanxi Engineering Technology Research Center for Solid State Lasers and Application,Xi’an,China |
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Abstract: | 355 nm UV laser was obtained with a pulse width of less than 5 ns and a peak power at megawatt level by adopting the 808 nm
pulse laser diode (LD) side-pumped ceramic Nd:YAG and BBO crystal electrooptical Q-switched. The single-pulse energy was measured
to be 24.3 mJ with 4.86 ns pulse width and 5.11 MW peak power at a repetition rate of 1Hz under a 120 A pump current. Using
a volume of beam splitting mirrors, wavelength outputs at 1064, 532, and 355 nm pulse laser was obtained simultaneously with
a respective average output power of 656.6, 357.1, and 260.5 mW, the beam quality factor M
2 are (M
x − 10642 = 5.83, M
y − 10642 = 5.61), (M
x − 5322 = 4.25, M
y − 5322 = 4.08) and (M
x − 3552 = 6.32, M
y − 3552 = 6.15), corresponding to a conversion efficiency at 11% from 1064 to 355 nm. |
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Keywords: | |
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