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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
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Abstract

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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B. Willke, V. Quetschke, S. Gossler, O. S. Brozek, K. Danzmann. 2000-05-05. Frequency stabilization of a monolithic Nd:YAG ring laser by controlling the power of the laser-diode pump source. https://doi.org/10.1364/ol.25.001019

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