Abstract
Pulses from a tunable near-infrared femtosecond optical parametric oscillator and its Ti:sapphire pump laser were phase-locked by matching their carrier-envelope phase-slip frequencies to one quarter of their common pulse repetition frequency. Interferometric second-order cross-correlation and spectral interferometry traces demonstrated their mutual coherence for periods of at least 20 ms, compared with individual coherence times of 0.1 ms estimated from their phase-noise power spectra. This result is a prerequisite for versatile coherent pulse synthesis. Implications for the synthesis of arbitrary waveforms from multi-colour pulses are discussed. © 2008 Optical Society of America.
| Original language | English |
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| Pages (from-to) | 1616-1622 |
| Number of pages | 7 |
| Journal | Optics Express |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 4 Feb 2008 |