Analyzing Output Phase Properties of Confocal Positive-Branch Laser Resonators by Use of Hartmann-Shack Sensor

Abstract:

The effect of intracavity aberrated perturbation on output mode structure properties of passive confocal unstable resonator is been experimentally researched by adopting H-S wavefront sensor and Zernike modal wavefront reconstruction on the basis of numerical simulation. Results show that intracavity tilted perturbation notablely affects outcoupled intensity distribution, and will also increase some high-order aberrations of beam phase properties. However, low-order Zernike tilt aberration is the main component when phase-tilted perturbation is introduced into the resonator. Defocus, astigmatism and coma aberration will all be brought, and also such high-order aberration included in wavefront will directly degrade output beam quality. When correction device of adaptive optics adopted for intracavity aberration correction, correction of tilted aberration should be considered firstly.

• Periodical: Advanced Materials Research (Volumes 282-283)
• Pages: 561-564
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.282-283.561
• Online since: July 2011
• Authors: Xiang Zhang
• Keywords: Measurement Engineering, Phase Properties, Unstable Laser Resonators, Wavefront Sensor, Zernike Aberration Analysis

References

[1] B. K. Zhou, Y. Z. Gao and T. R. Chen: The Principle of Laser (National Defense Industry Press, China 2000).

[2] Q. Zhuang, F. T. Sang and D. Z. Zhou: Shortwave Chemical Laser (National Defence Industry Press, China 1997).

[3] B. D. Lv, X. L. Ji and S. R. Luo: Parametric Characterization of Laser Beams and Beam Quality, Infrared and Laser Engineering, Vol. 33, No. 1, pp.14-17, (2004).

[4] T. Y. Fan: Diode Pumped Solid State Lasers, Lincoln Lab. J., Vol. 3, pp.413-415, (1990).

[5] A. G. Fox and T. Li: Resonant Modes in a Master Interferometer, Bell Syst Tech J, Vol. 40, No. 3, pp.453-488, (1961).

[6] E. A. Sziklas and A. E. Siegman: Mode Calculations in Unstable Resonators with Flowing Saturable Gain 2: Fast Fourier Transform Method, Applied Optics, Vol. 14, No. 8, pp.1874-1889, (1975).

DOI: 10.1364/ao.14.001874

[7] A. E. Siegman and H. Y. Miller: Unstable Optical Resonator Loss Calculations Using the Pront Method, Applied Optics, Vol. 9, No. 12, pp.2729-2735, (1970).

DOI: 10.1364/ao.9.002729

[8] W. H. Jiang and H. G. Li: Hartmann-Shack Wavefront Sensing and Wavefront Control Algorithm, Proceedings of the SPIE, Vol. 1271, pp.82-93, (1990).

[9] R. Cubalchini: Modal Wave-front Estimation from Phase Derivative Measurements, Journal of the Optical Society of America, Vol. 69, No. 7, pp.972-977, (1979).

DOI: 10.1364/josa.69.000972

[10] W. H. Southwell: Wave-front Estimation from Wave-Front Slope Measurements, Journal of the Optical Society of America, Vol. 70, No. 8, pp.998-1006, (1980).

DOI: 10.1364/josa.70.000998