Optimization Design and Modeling of High Peak Power Yb:YAG Pulsed Lasers with High Efficiency

2010 ◽  
Vol 30 (8) ◽  
pp. 2278-2283
Author(s):  
王建磊 Wang Jianlei ◽  
施翔春 Shi Xiangchun ◽  
朱小磊 Zhu Xiaolei
2002 ◽  
Vol 31 (2) ◽  
pp. 136-141 ◽  
Author(s):  
Makoto Ogura ◽  
Shunichi Sato ◽  
Miya Ishihara ◽  
Satoko Kawauchi ◽  
Tunenori Arai ◽  
...  

2017 ◽  
Vol 46 (6) ◽  
pp. 605004
Author(s):  
崔建丰 Cui Jianfeng ◽  
高 涛 Gao Tao ◽  
张亚男 Zhang Ya′nan ◽  
王 迪 Wang Di ◽  
姚 俊 Yao Jun ◽  
...  

2000 ◽  
Vol 49 (12) ◽  
pp. 2378
Author(s):  
WANG YI-SHAN ◽  
CHEN GUO-FU ◽  
YU LIAN-JUN ◽  
ZHAO SHANG-HONG ◽  
ZHAO WEI

2021 ◽  
Author(s):  
Hongzhan Qiao ◽  
Kai Zhong ◽  
Fangjie Li ◽  
Xianzhong Zhang ◽  
Quan Sheng ◽  
...  

Author(s):  
Yang Bai ◽  
Bing Bai ◽  
Diao Li ◽  
Yanxiao Sun ◽  
Jianlin Li ◽  
...  

We report a cavity-dumped 1123 nm laser with narrow pulse width and high peak power by an MgO: LN crystal electro-optic (EO) modulator. Based on the structural optimization design of a folded biconcave cavity using the 808 nm pulsed laser diode (LD) side-pumped ceramic Nd: YAG rod, output pulses with maximum pulse energy and peak power up to 39.6 mJ and 9.73 MW were obtained, corresponding to 100 Hz repetition rate and 4.07 ns pulse width. The instabilities of pulse width and pulse energy were $\pm$1.55% and $\pm$2.06%, respectively. At the highest repetition rate of 1 kHz, the pulse energy, pulse width, and peak power were 11.3 mJ, 5.05 ns, and 2.24 MW, respectively. The instabilities of pulse width and pulse energy were $\pm$2.65% and $\pm$3.47%, respectively.


Author(s):  
Azer P. Yalin ◽  
Sachin Joshi ◽  
Adam Reynolds ◽  
Morgan Defoort ◽  
Bryan Willson ◽  
...  

Past research has shown that laser ignition is capable of operating high bmep engines at high efficiency and with low emission levels. However, for laser ignition systems to be adopted by industry, one requires a practical (and economical) mode of beam delivery other than the conventional open-path beam delivery that has been used in much of the past research. One potential beam delivery method is via optical fibers capable of handling high peak power. This paper summarizes our recent efforts in this area. Using coated hollow fibers, our research group has demonstrated the delivery of laser pulses to form optical sparks both on the bench-top and for ignition and operation of a single cylinder of an ARES engine. When held relatively straight, the hollow fibers allow transmission of nanosecond pulse energies of 10s of milli-Joules with transmission above 90% and sufficient beam quality for spark formation. We have also been able to deliver optical sparks on the bench-top with high peak power pulsed fiber lasers. Pulse energies in those experiments were approximately 2 mJ. Other recent work has studied the transmission characteristics of recently developed photonic crystal fibers.


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