10 kHz accuracy of an optical frequency reference based on (12)C2H2-filled large-core kagome photonic crystal fibers.
10 kHz accuracy of an optical frequency reference based on (12)C2H2-filled large-core kagome photonic crystal fibers.
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DOI：
10.1364/oe.17.016017
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发表时间：
2009-08
期刊：
影响因子：
3.8
通讯作者：
K. Knabe;Shun Wu;Jinkang Lim;K. Tillman;P. Light;F. Couny;N. Wheeler;R. Thapa;Andrew M. Jones;J. Nicholson;B. Washburn;F. Benabid;K. Corwin
中科院分区：
文献类型：
--
作者：
K. Knabe;Shun Wu;Jinkang Lim;K. Tillman;P. Light;F. Couny;N. Wheeler;R. Thapa;Andrew M. Jones;J. Nicholson;B. Washburn;F. Benabid;K. Corwin
饱和吸收光谱揭示了迄今为止分子气体填充空心光子晶体光纤中最窄的特征。这里使用的 kagome 结构光纤的 48-68 μm 芯径可实现 8 MHz 全宽半高亚多普勒特性，其对波长不敏感的传输适合高精度频率测量。光纤激光器锁定 (12)C2H2 nu(1)； + kagome 光纤内的 nu(3) P(13) 跃迁，并与基于碳纳米管光纤激光器和 Cr:镁橄榄石激光器的频率梳进行比较，每个频率梳均参考 GPS 规范的 Rb 振荡器。测得的线路中心的绝对频率与功率积聚腔中测得的绝对频率一致，误差在 9.3 kHz 以内（1 sigma 误差），并且在 1 s 平均时间内，分数频率不稳定性小于 1.2 x 10(-11)。
Saturated absorption spectroscopy reveals the narrowest features so far in molecular gas-filled hollow-core photonic crystal fiber. The 48-68 mum core diameter of the kagome-structured fiber used here allows for 8 MHz full-width half-maximum sub-Doppler features, and its wavelength-insensitive transmission is suitable for high-accuracy frequency measurements. A fiber laser is locked to the (12)C2H2 nu(1); + nu(3) P(13) transition inside kagome fiber, and compared with frequency combs based on both a carbon nanotube fiber laser and a Cr:forsterite laser, each of which are referenced to a GPS-disciplined Rb oscillator. The absolute frequency of the measured line center agrees with those measured in power build-up cavities to within 9.3 kHz (1 sigma error), and the fractional frequency instability is less than 1.2 x 10(-11) at 1 s averaging time.