Phase-locked widely tunable optical single-frequency generator based on a femtosecond comb.
Phase-locked widely tunable optical single-frequency generator based on a femtosecond comb.
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DOI：
10.1364/ol.30.002323
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发表时间：
2005-09
期刊：
影响因子：
3.6
通讯作者：
T. Schibli;Kaoru Minoshima;Feng-Lei Hong;Hajime Inaba;Y. Bitou;A. Onae;Hirokazu Matsumoto
中科院分区：
文献类型：
--
作者：
T. Schibli;Kaoru Minoshima;Feng-Lei Hong;Hajime Inaba;Y. Bitou;A. Onae;Hirokazu Matsumoto
提出了一种基于飞秒光频梳的任意光单频发生器，其功能相当于射频合成器。然而，该设备的工作频率为数百太赫兹。该频率合成器的绝对频率精度在282 THz载波频率下约为1 kHz。100 s时的稳定性约为2 × 10（-14），调谐速度超过30 GHz/s。这个源演示了集成的锁相光梳成一个通用的和易于使用的系统，用于产生可调谐的，绝对的光频率。通过使用下变频，人们可以产生可调谐的太赫兹频率，其相位锁定到微波参考，例如Cs原子钟，并且高精度干涉测量可以从这种广泛可调谐源的稳定性和准确性中受益匪浅。
We present an arbitrary optical single-frequency generator based on a femtosecond optical frequency comb. The functions of this device are comparable to those of a radio-frequency synthesizer. However, this device operates at hundreds of terahertz. The absolute frequency accuracy of this synthesizer is approximately 1 kHz at a 282 THz carrier frequency. The stability is approximately 2 x 10(-14) at 100 s, and the tuning speed exceeds 30 GHz/s. This source demonstrates the integration of a phase-locked optical comb into a versatile and easy-to-use system for the generation of tunable, absolute optical frequencies. By using downconversion, one could generate tunable terahertz frequencies that are phase locked to a microwave reference, such as a Cs atomic clock, and high-precision interferometry could benefit greatly from the stability and accuracy of this widely tunable source.