Email address: jeongtgmist.ac.kr. yEmail address: leejmgist.ac.kr. Japanese Journal of Applied Physics. Vol. 46, No. 12, 2007, pp. 77247730. 2007 The Japan Socieyt of Applied Physics ... (30 TW with direct pulse compression). 1. Master Oscillator: 20 fs, 4.5nJ. 2. Strethcer: 340 ps. 3. Regen. Amp.: 0.7 mJ with 10mJ pump at 1 kHz. (10 Hz after pulse picker). 6. 2nd Amp: 3 pass, 5.6 J with 10J pump at 10 Hz. 7. Compressor: 3.6 J, 32 fs, 100 TW ta 10 Hz ...