Using coherence properties for frequency stabilizing He-Ne laser

Dejan V. Pantelic; Bratimir M. Panic; A. Kovacevic; Aleksandar J. Krmpot

doi:10.1117/12.618818

22 April 2005 Using coherence properties for frequency stabilizing He-Ne laser

Dejan V. Pantelic, Bratimir M. Panic, A. Kovacevic, Aleksandar J. Krmpot

Proceedings Volume 5830, 13th International School on Quantum Electronics: Laser Physics and Applications; (2005) https://doi.org/10.1117/12.618818
Event: 13th International School on Quantum Electronics: Laser Physics and Applications, 2004, Bourgas, Bulgaria

Abstract

We have demonstrated that the frequency of the laser radiation can be stabilized by controlling its coherence properties. Theoretical analysis of the laser radiation visibility function was performed and connection with the longitudinal mode structure was established. It was established that laser emission frequency could be stabilized by controlling the visibility of interference pattern. Calculations have shown that, in theory, stability around 4 kHz can be expected. As a proof-of-the-principle, a HeNe laser, stabilized by measurement of the interference pattern visibility in a modified Mechelson interferometer, was built. Stabilization was performed by temperature control of the laser tube in a digital feedback loop and total frequency variation of 3 MHz was obtained. Possible improvements of the experimental setup, together with some applications of multimode stabilized lasers are discussed.

Citation Download Citation

Dejan V. Pantelic, Bratimir M. Panic, A. Kovacevic, and Aleksandar J. Krmpot "Using coherence properties for frequency stabilizing He-Ne laser", Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); https://doi.org/10.1117/12.618818

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