Hiroaki Sunaga, Ryusuke Horiuchi, Kazuya Jyosui, Kazuyoku Tei, Shigeru Yamaguchi, Kenzo Nanri, Tomoo Fujioka. Second harmonic generation of high peak power, high repetition rate from Yb-doped fiber amplifier[J]. Chinese Optics Letters, 2007, 5(s1): 111