Frequency comb-referenced narrow line width diode laser system for coherent molecular spectroscopy

Frequency comb-referenced narrow line width diode laser system for coherent molecular spectroscopy
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用于相干分子光谱的频率梳参考窄线宽二极管激光系统

DOI:
10.1007/s00340-008-2955-0
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发表时间:
2008
期刊:
Applied Physics B
影响因子:
--
通讯作者:
A. Wicht
A. Wicht
中科院分区:
--
文献类型:
--
作者:
K. Döringshoff;I. Ernsting;R.-H. Rinkleff;S. Schiller;A. Wicht

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我们详细分析了光栅增强型外腔二极管激光器 (GEECDL) 的频率噪声特性。该系统融合了两种二极管激光器概念,即光栅稳定二极管激光器和具有谐振光学反馈的二极管激光器,从而将大调谐范围与出色的短期频率稳定性结合起来。我们将 GEECDL 的频率噪声谱与光栅稳定二极管激光器的频率噪声谱进行比较,并证明频率噪声线性谱密度降低了 10 倍。 GEECDL 被锁相到类似的激光器和带有伺服环路的飞秒频率梳,提供仅 237 kHz 的开环单位增益频率,这是光栅稳定二极管激光器通常所需带宽的十分之一。我们实现了小至 72 mrad (≈ 200 mrad) 的残余均方根相位误差,以稳定类似的激光器(飞秒频率梳)。我们证明,新型二极管激光器可以相位相干地跟踪稳定的光学参考,不稳定性为 1.8×10-16at 1 s。该激光系统非常适合在噪声条件下需要锁相到低功率光学参考的应用。也可以考虑将其用于光学时钟激光器的实施。
We analyze in detail the frequency noise properties of a grating enhanced external cavity diode laser (GEECDL). This system merges two diode laser concepts, the grating stabilized diode laser and the diode laser with resonant optical feedback, thus combining a large tuning range with an excellent short-term frequency stability. We compare the frequency noise spectrum of a GEECDL to that of a grating stabilized diode laser and demonstrate a 10-fold reduction of the frequency noise linear spectral density. The GEECDL is phase locked to a similar laser and to a fs-frequency comb with a servo loop providing an open-loop unity-gain frequency of only 237 kHz, which is a tenth of the bandwidth typically required for grating stabilized diode lasers. We achieve a residual rms phase error as small as 72 mrad (≈ 200 mrad) for stabilization to a similar laser (to the fs-frequency comb). We demonstrate that the novel diode laser can phase-coherently track a stable optical reference with an instability of 1.8×10-16at 1 s. This laser system is well suited for applications that require phase locking to a low-power optical reference under noisy conditions. It may also be considered for the implementation of optical clock lasers.
DOI: 10.1364/ao.45.009191
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影响因子: 1.9
作者:
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用于超高分辨率光谱的低噪声、可调谐二极管激光器。
DOI: --
发表时间: 2007
期刊: Optics Letters
影响因子: 3.6
作者:
K. Döringshoff;I. Ernsting;R. Rinkleff;S. Schiller;A. Wicht
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DOI: --
发表时间: 2004
期刊:
影响因子: --
作者:
A. Wicht;M. Rudolf;P. Huke;R. Rinkleff;K. Danzmann
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用于 40 Ca 亚稳态量子位的锁相激光系统。
DOI: --
发表时间: 2007
期刊: Optics Letters
影响因子: 3.6
作者:
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通讯作者: S. Urabe