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Proceedings Paper

Using coherence properties for frequency stabilizing He-Ne laser
Author(s): Dejan V. Pantelic; Bratimir M. Panic; A. Kovacevic; Aleksandar J. Krmpot
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Paper 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.

Paper Details

Date Published: 22 April 2005
PDF: 5 pages
Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); doi: 10.1117/12.618818
Show Author Affiliations
Dejan V. Pantelic, Institute of Physics (Serbia and Montenegro)
Bratimir M. Panic, Institute of Physics (Serbia and Montenegro)
A. Kovacevic, Institute of Physics (Serbia and Montenegro)
Aleksandar J. Krmpot, Institute of Physics (Serbia and Montenegro)

Published in SPIE Proceedings Vol. 5830:
13th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Sanka V. Gateva; Lachezar A. Avramov; Alexander A. Serafetinides, Editor(s)

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