Abstract

We observed and measured the relative carrier-envelope phase difference per round trip between synchronized femtosecond Ti:sapphire and Cr:forsterite mode-locked lasers. The relative carrier-envelope phase slip was directly recorded by heterodyning of the Cr:forsterite laser with the supercontinuum from the Ti:sapphire laser. We also obtained another phase relation by superimposing the third harmonic of the Cr:forsterite laser with the second harmonic of the Ti:sapphire laser. In the latter case we obtained a stable beat signal with a signal-to-noise ratio larger than 30 dB and found a dependence of the beat frequency on the cavity length.

© 2002 Optical Society of America

Control of relative carrier-envelope phase slip in femtosecond Ti:sapphire and Cr:forsterite lasers

Yohei Kobayashi, Kenji Torizuka, and Zhiyi Wei
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Broadband phase-coherent optical frequency synthesis with actively linked Ti:sapphire and Cr:forsterite femtosecond lasers

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Synchronization of Ti:sapphire and Cr:forsterite mode-locked lasers with 100-attosecond precision by optical-phase stabilization

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All-optical phase locking of two femtosecond Ti:sapphire lasers: a passive coupling mechanism beyond the slowly varying amplitude approximation

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