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首页> 外文期刊>Optics Letters >Diode laser frequency-noise suppression by>50 dB by use of electro-optic parametric master oscillators
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Diode laser frequency-noise suppression by>50 dB by use of electro-optic parametric master oscillators

机译：通过使用电光参量主振荡器将二极管激光器的噪声噪声抑制大于50 dB

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摘要

We demonstrate a novel frequency-stabilization scheme for laser diodes that is capable of linewidth reduction by more than 5 orders of magnitude. In this master-slave scheme the diode laser emission is frequency-offset phase locked to the emission of an electro-optic parametric oscillator (EOPO), and the laser diode is simultaneously used as the EOPO pump source. As a result the initial frequency fluctuations of the pump are reduced to the intrinsic noise level of the EOPO, which can be extremely small. We demonstrate that subhertz linewidths of the beat notes of the signals of two of these systems can be readily achieved if acoustic perturbations are suppressed.
机译：我们演示了一种新颖的激光二极管频率稳定方案，该方案能够将线宽减小5个数量级以上。在此主从方案中，二极管激光发射的频偏锁相到电光参量振荡器（EOPO）的发射，并且激光二极管同时用作EOPO泵浦源。结果，泵的初始频率波动降低到EOPO的固有噪声水平，该噪声水平可能非常小。我们证明，如果抑制了声音扰动，则可以很容易地实现其中两个系统的信号节拍音的亚赫兹线宽。

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