Börzsönyi A, Chiche R, Cormier E, Flaminio R, Jojart P, Michel C, Osvay K, Pinard L, Soskov V, Variola A, Zomer F
Appl Opt. 2013 Dec 1;52(34):8376-80. doi: 10.1364/AO.52.008376.
We report on the first demonstration, to the best of our knowledge, of the locking of a Fabry-Perot cavity with a finesse of 28,000 in the pulsed regime. The system is based on a stable picosecond oscillator, an ultrastable cavity with high-reflection mirrors, and an all-numerical feedback system that allows efficient and independent control of the repetition rate and the pulse to pulse carrier-to-envelop phase drift (CEP). We show that the carrier to envelop phase can have a dramatic effect even for pulses with hundreds of cycles. Moreover, we have succeeded in unambiguously measuring the CEP of a 2 ps pulse train. Finally, we discuss the potential of our findings to reach the MW average power level stored in an external cavity enhancement architecture.
据我们所知，我们首次展示了在脉冲状态下对精细度为28000的法布里-珀罗腔进行锁定。该系统基于一个稳定的皮秒振荡器、一个带有高反射镜的超稳定腔以及一个全数字反馈系统，该反馈系统能够对重复频率以及脉冲间载波包络相位漂移（CEP）进行高效且独立的控制。我们表明，即使对于具有数百个周期的脉冲，载波包络相位也会产生显著影响。此外，我们成功地明确测量了一个2皮秒脉冲序列的CEP。最后，我们讨论了我们的研究结果在外部腔增强架构中达到兆瓦平均功率水平的潜力。
