High Peak Power Pulse Amplification in Large-Core Yb-Doped Fiber Amplifiers Export

@article{citeulike:1755980, abstract = {High peak power fiber lasers are important for a variety of applications ranging from material processing and remote sensing to laser-plasma produced extreme ultraviolet lithography (EUV) generation. These applications require high peak powers in the megawatt range, < 1-10-ns pulse durations and high average powers in preferably diffraction-limited beams. In this paper, we review our work on high peak power pulse generation using large- mode-area (LMA) Yb-doped fibers with very large cores. We report achieving up to > 5-MW peak power with subnanosecond pulses, the highest peak power achieved so far from a fiber laser. Use of a variety of core sizes between 65 and 200 mum has been explored and it has been shown that for core sizes as large as 80 mum, a good output beam quality of M² \~{} 1.3 can be maintained. This corresponds to the largest ever demonstrated mode area (2750 mum²) of a conventional LMA fiber with nearly diffraction-limited output. We also demonstrate average-power scaling of megawatt peak power pulses of up to \~{}90 W.}, author = {Galvanauskas, A. and Cheng, Ming-Yuan and Hou, Kai-Chung and Liao, Kai-Hsiu}, booktitle = {Selected Topics in Quantum Electronics, IEEE Journal of}, citeulike-article-id = {1755980}, citeulike-linkout-0 = {http://dx.doi.org/10.1109/JSTQE.2007.899145}, citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4244422}, day = {18}, doi = {10.1109/JSTQE.2007.899145}, journal = {Selected Topics in Quantum Electronics, IEEE Journal of}, keywords = {amplifier, area, core, fibre, high-power, large, mode}, month = {June}, number = {3}, pages = {559--566}, posted-at = {2009-08-25 18:44:11}, priority = {2}, title = {High Peak Power Pulse Amplification in Large-Core Yb-Doped Fiber Amplifiers}, url = {http://dx.doi.org/10.1109/JSTQE.2007.899145}, volume = {13}, year = {2007} }

TY - JOUR ID - citeulike:1755980 L3 - citeulike-article-id:1755980 N2 - High peak power fiber lasers are important for a variety of applications ranging from material processing and remote sensing to laser-plasma produced extreme ultraviolet lithography (EUV) generation. These applications require high peak powers in the megawatt range, < 1-10-ns pulse durations and high average powers in preferably diffraction-limited beams. In this paper, we review our work on high peak power pulse generation using large- mode-area (LMA) Yb-doped fibers with very large cores. We report achieving up to > 5-MW peak power with subnanosecond pulses, the highest peak power achieved so far from a fiber laser. Use of a variety of core sizes between 65 and 200 mum has been explored and it has been shown that for core sizes as large as 80 mum, a good output beam quality of M² ~ 1.3 can be maintained. This corresponds to the largest ever demonstrated mode area (2750 mum²) of a conventional LMA fiber with nearly diffraction-limited output. We also demonstrate average-power scaling of megawatt peak power pulses of up to ~90 W. IS - 3 JF - Selected Topics in Quantum Electronics, IEEE Journal of EP - 566 TI - High Peak Power Pulse Amplification in Large-Core Yb-Doped Fiber Amplifiers VL - 13 T2 - Selected Topics in Quantum Electronics, IEEE Journal of SP - 559 KW - amplifier KW - area KW - core KW - fibre KW - high-power KW - large KW - mode AU - Galvanauskas, A AU - Cheng, Ming-Yuan AU - Hou, Kai-Chung AU - Liao, Kai-Hsiu PY - 2007/06/18/ UR - http://dx.doi.org/10.1109/JSTQE.2007.899145 ER -