Bagheri, Mahsa, Olyaee, Saeed, Leitgeb, Erich (2014). Analysis the Performance of Controllers for He-Ne Laser Stabilization by Combination of Frequency Locking and Power Balanced Methods for Nano-Metrology Applications. , 13(4), 93-98.
Mahsa Bagheri; Saeed Olyaee; Erich Leitgeb. "Analysis the Performance of Controllers for He-Ne Laser Stabilization by Combination of Frequency Locking and Power Balanced Methods for Nano-Metrology Applications". , 13, 4, 2014, 93-98.
Bagheri, Mahsa, Olyaee, Saeed, Leitgeb, Erich (2014). 'Analysis the Performance of Controllers for He-Ne Laser Stabilization by Combination of Frequency Locking and Power Balanced Methods for Nano-Metrology Applications', , 13(4), pp. 93-98.
Bagheri, Mahsa, Olyaee, Saeed, Leitgeb, Erich Analysis the Performance of Controllers for He-Ne Laser Stabilization by Combination of Frequency Locking and Power Balanced Methods for Nano-Metrology Applications. , 2014; 13(4): 93-98.

Analysis the Performance of Controllers for He-Ne Laser Stabilization by Combination of Frequency Locking and Power Balanced Methods for Nano-Metrology Applications

The Modares Journal of Electrical Engineering
Article 10, Volume 13, Issue 4, 2014, Pages 93-98    PDF (138.37 K)
Authors
Mahsa Bagheri1; Saeed Olyaee* 2; Erich Leitgeb3
1MSc Student, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran, nbm.
2Associate Professor, Nano-photonics and Optoelectronics Research Laboratory (NORLab), Shahid Rajaee Teacher Training University, Tehran, Iran,.
3Professor, Graz University of Technology, Institute of Microwave and Photonic Engineering, Graz, Austria,
Abstract
In this paper, analysis the performance of PI, PI-like fuzzy, and parallel fuzzy P+ fuzzy I controllers for He-Ne lasers frequency stabilization by combination of frequency locking and power balanced methods is presented. He-Ne lasers can be attributed to an unstable system due to the influence of environmental factors on its' frequency. Therefore, the stabilization of He-Ne laser is so important in sensitive applications such as laser interferometers and nanometrology systems. The simulation results of controllers by powerful software MATLAB/SIMULINK-GUI show that parallel fuzzy P+ fuzzy I controller has better stabilization performance and integrated absolute error (IAE) than others. Also, frequency fluctuations of He-Ne laser is about 2×10-11 by parallel fuzzy P+ fuzzy I controller.

Keywords
Cavity Length; Controller; He-Ne Lasers; Nanometrology; Thermal Instability
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