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arXiv physics/0005015physics.optics
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通过控制激光二极管泵浦功率实现Nd:YAG单片环形laser的稳频

Frequency stabilization of a monolithic Nd:YAG ring laser by controlling the power of the laser-diode pump source

B. Willke, V. Quetschke, S. Gossler, O. S. Brozek, K. Danzmann

摘要:

700mW单片非平面Nd:YAG环形激光器(NPRO)的频率与其激光二极管泵浦源的功率有很大的耦合系数(MHz/mW)。利用这种效应,我们证明了一个NPRO的频率稳定的频率参考反馈到其泵二极管的电流。在不增加功率稳定反馈系统的情况下,实现了误差点频率噪声小于1mHz/sqrt(Hz),同时使NPRO的功率噪声降低了10dB。

英文摘要:

The frequency of a 700mW monolithic non-planar Nd:YAG ring laser (NPRO) depends with a large coupling coefficient (some MHz/mW) on the power of its laser-diode pump source. Using this effect we demonstrate the frequency stabilization of an NPRO to a frequency reference by feeding back to the current of its pump diodes. We achieved an error point frequency noise smaller than 1mHz/sqrt(Hz), and simultaneously a reduction of the power noise of the NPRO by 10dB without an additional power stabilization feed-back system.

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