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首页> 外文期刊>Applied optics >Tunable extended-cavity diode laser stabilized on iodine at λ=633 nm
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Tunable extended-cavity diode laser stabilized on iodine at λ=633 nm

机译：可调谐的长腔二极管激光器稳定在λ= 633 nm的碘上

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摘要

We present a tunable extended-cavity semiconductor laser, based on the Littman configuration, which has been frequency-stabilized to Doppler-free hyperfine transitions in I_(2). The stability was measured compared with the reference He-Ne-I_(2) laser system, whereas the semiconductor laser was locked on components of the P(33) 6—3 transition close enough to the reference R(127) 11—5 line to allow beat frequency counting. A relative stability of 4×10~(12) over a 100-s integration time was achieved. The laser configuration allowed mode-hop-free tuning over a range including the P(33) 6—3 transition and the group of strong overlapping transitions R(60) 8—4, R(125) 9—4, and P(54) 8—4 with higher signal-to-noise ratio than the P(33) 6—3 located approximately 13 GHz toward lower optical frequencies.
机译：我们提出了一种基于Littman配置的可调腔激光器，该激光器已在I_（2）中稳定到无多普勒超精细跃迁。与参考He-Ne-I_（2）激光系统相比，测量了稳定性，而半导体激光器被锁定在足够靠近参考R（127）11-5线的P（33）6-3过渡的组件上允许对拍频进行计数。在100s的积分时间内获得了4×10〜（12）的相对稳定性。激光器配置允许在包括P（33）6-3过渡和一组强重叠过渡R（60）8-4，R（125）9-4和P（54）的范围内进行无模跳调谐）8-4具有比P（33）6-3更高的信噪比，而P（33）6-3在较低的光频率下大约位于13 GHz。

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