Abstract
We demonstrate a high-power frequency comb consisting of a Ti:sapphire bulk seed laser and a large-mode-area Yb-fiber power amplifier. An all-fiber pulse stretcher was carefully designed to suppress the amplitude-to-phase noise in the fiber amplifier. Near-Fourier-limited pulses were obtained with an average power of up to 30 W and a pulse duration of 178 fs. The free-running carrier-envelope-phase frequency was optimized to have a linewidth of 52 kHz, which was further phase-locked to a narrow linewidth of 1.8 mHz with an integrated phase noise of 0.78 rad.
| Original language | English |
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| Article number | 095112 |
| Journal | Laser Physics |
| Volume | 23 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2013 |
| Externally published | Yes |