A new frequency-stabilized design for 633nm He-Ne laser

Liqiang Wang; Aibin Zuo; Yuexiang Peng

doi:10.1117/12.693654

10 June 2006 A new frequency-stabilized design for 633nm He-Ne laser

Liqiang Wang, Aibin Zuo, Yuexiang Peng

Proceedings Volume 6344, Advanced Laser Technologies 2005; 634423 (2006) https://doi.org/10.1117/12.693654
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China

Abstract

The two longitudinal modes whose polarizations are orthogonal to each other can appear in the resonant cavity of He-Ne laser cavity 140mm long with. The both modes compete each other. Controlling the resonant cavity length, the heater wrapped on it enhances the output power of the weakening mode so as to stabilize the frequencies of the both modes. The intracavity laser includes a laser resonant cavity, a heater, an analyzer, a polarized spectroscope, and two detectors. The voltage multiplying rectifier circuit is designed for the laser power. When the frequencies of the both modes are stable, the positive duty of the output pulse of the comparator is 50%. With the beat frequency method, the frequency stability of this laser is tested for 2x10^-10. The laser using this method has a lot of particular advantages that other methods do not possess, such as no piezocrystal or magnetic field.

Citation Download Citation

Liqiang Wang, Aibin Zuo, and Yuexiang Peng "A new frequency-stabilized design for 633nm He-Ne laser", Proc. SPIE 6344, Advanced Laser Technologies 2005, 634423 (10 June 2006); https://doi.org/10.1117/12.693654

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