Diagnostic of High-Energy Nd-YAG Laser Polarizer

  • Mohd Ikhwan Hadi Yaacob
  • Nurul Syafiqah Yap Abdullah
Keywords: High power Nd:YAG laser, high energy polarizer, linear polarization.

Abstract

Polarized beam is very vital for operating light switches. High polarization purity is pertinent in high power Q-Switched Nd:YAG laser system. The aim of this project is to diagnose two high-energy polarizers which are commonly used in Q-Switched Nd:YAG laser system namely Glenn-Laser calcite and thin film. The polarization purity was determined by using low power He-Ne laser in place of high power Nd:YAG. The power of He-Ne laser was set at 10 mW with wavelength of 632.8 nm. The beam was aligned to produce parallel plane polarizer. A polaroid polarizer was used as analyzer. The transmission power was measured using a power meter at variable angular rotations from 00 to 360o. The result obtained shows that, both polarizers have produced linear polarization. However, the thin film polarizer had produced a closer result more similar to He-Ne beam polarization. Hence, the thin film polarizer is a better choice to polarize high power Nd:YAG beam since it has higher polarization purity and transmission.

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Author Biographies

Mohd Ikhwan Hadi Yaacob

Department of Physics, Faculty of Science and Technology, Universiti Pendidikan Sultan Idris, 35900 Tanjong Malim, Perak, Malaysia.

Nurul Syafiqah Yap Abdullah

Department of Physics, Faculty of Science and Technology, Universiti Pendidikan Sultan Idris, 35900 Tanjong Malim, Perak, Malaysia.

Published
2009-12-09
How to Cite
Hadi Yaacob, M. I., & Yap Abdullah, N. S. (2009). Diagnostic of High-Energy Nd-YAG Laser Polarizer. Journal of Science and Mathematics Letters, 1(2), 87-94. Retrieved from https://ejournal.upsi.edu.my/index.php/JSML/article/view/400