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http://dx.doi.org/10.3807/KJOP.2002.13.2.140

Output power characteristics of a CW Nd:YVO4/KTP laser pumped by a tunable Ti:Sapphire laser  

추한태 (금오공과대학교 자연과학부)
안범수 (금오공과대학교 자연과학부)
김규욱 (금오공과대학교 자연과학부)
이치원 (공주대학교 영상정보공학부)
Publication Information
Korean Journal of Optics and Photonics / v.13, no.2, 2002 , pp. 140-145 More about this Journal
Abstract
We measured the absorption rate of a Nd:YVO$_4$crystal with a thickness of 1 mm and the output power characteristics of a cw Nd:YVO$_4$/KTP laser with respect to the change of wavelength and the polarizations of a tunable Ti:sapphire pump laser with a linewidth of 0.2 nm. In the case of S-polarization (E┴$\pi$) and P-polarization (E∥$\pi$) of a pump laser, the maximum absorption rate of the crystal was 82% at 809.4 nm and 98% at 808.8 nm, and slope efficiencies for the output power of the Nd:YVO$_4$laser (1064 nm) were 43% and 52%, respectively. The maximum Nd:YYO$_4$laser output power of 516 mW was obtained from the P-polarization pump laser of 1000 mW. As a result of an intracavity frequency-doubling, slope efficiency for the output power of the Nd:YVO$_4$/KTP green laker (532nm) was 23% and the maximum output power of 205 mW with the beam quality (M$^2$) of 1.42 was obtained from the P-polarization pump laser of 1000 mW.
Keywords
Laser principles; Solid-state laser; Nonlinear optics;
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