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http://dx.doi.org/10.3807/HKH.2007.18.1.066

Output Characteristics of a Pulsed Ti:sapphire Laser Oscillator Pumped Longitudinally by Second Harmonic Wave of Nd:YAG Laser and a Ti:sapphire Laser Amplifier Operated along the Single Path of the Oscillator Beam  

Kim, Kyung-Nam (Dept. of Applied Optics and Electromagnetics, Hannam University)
Jo, Jae-Heung (Dept. of Applied Optics and Electromagnetics, Hannam University)
Lim, Gwon (Quantum Optics Division, Korea Atomic Energy Research Institute)
Cha, Byung-Heon (Quantum Optics Division, Korea Atomic Energy Research Institute)
Publication Information
Korean Journal of Optics and Photonics / v.18, no.1, 2007 , pp. 66-73 More about this Journal
Abstract
The various output characteristics of a pulsed Ti:sapphire laser oscillator with a plane-parallel resonator, pumped longitudinally by the second harmonic wave of a Nd:YAG laser, and the output of a Ti:sapphire laser amplifier operated along the single path of the oscillator beam were investigated and analyzed. In the case of the oscillator, we measured the spectrum, the pulse buildup time, the temporal duration time of the pulse, and the output energy according to the variation of the pumping energy, resonator length, and the reflectance of the output coupler. And, in the case of the amplifier, we investigated and analyzed the output energy of the amplifier as a function of the time difference between the two pump beams of the oscillator and the amplifier, the pumping energy of the oscillator, and the pumping energy of the amplifier When pump energies of both the oscillator and the amplifier were 18 mJ/pulse, we could find that the output energy of the amplifier increased linearly and gradually up to the time difference of 35 ns. Finally, we determined that the slope efficiencies of the oscillator and the amplifier were 23.5 % and 11.6 %, respectively.
Keywords
Ti:sapphire 레이저 발진기;Ti:sapphire 레이저 증폭기;파장가변 레이저;고출력 펄스 레이저;
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