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Frequency stabilization of a frequency-doubled 1556-nm source to the 5S_(1/2)→5D_(5/2) two-photon transitions of rubidium

机译:倍频1556 nm光源对5的5S_(1/2)→5D_(5/2)两光子跃迁的频率稳定

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摘要

Improvements in the power level of sources near 1550 nm and in the efficiency of waveguide frequency doublers enabled us to lock a frequency-doubled source directly to the 5S_(1/2)→5D_(5/2) two-photon transitions near 778 nm. We obtained a sufficiently powerful second-harmonic signal, exceeding 2 mW, by doubling an external-cavity diode laser that was amplified by an erbium-doped fiber amplifier in a periodically poled LiNbO_(3) channel waveguide. Our experimental scheme can be used for realizing compact, high-performance frequency standards near 1550 nm for fiber-optic communication and sensing applications.
机译:1550 nm附近光源的功率水平的提高和波导倍频器效率的提高,使我们能够将倍频光源直接锁定到778 nm附近的5S_(1/2)→5D_(5/2)两光子跃迁。通过将外腔二极管激光器加倍,并在周期性极化的LiNbO_(3)通道波导中通过掺by光纤放大器,我们获得了足够强大的二次谐波信号,超过2 mW。我们的实验方案可用于在1550 nm附近实现紧凑的高性能频率标准,用于光纤通信和传感应用。

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