中国物理B ›› 2015, Vol. 24 ›› Issue (12): 124206-124206.doi: 10.1088/1674-1056/24/12/124206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Effects of 946-nm thermal shift and broadening on Nd3+:YAG laser performance

Seyed Ebrahim Pourmanda, Ghasem Rezaeib   

  1. a Department of Optics and Laser Engineering, Estahban Branch, Islamic Azad University, Estahban, Iran;
    b Department of Physics, College of Sciences, Yasouj University, Yasouj 75914-353, Iran
  • 收稿日期:2015-04-30 修回日期:2015-06-30 出版日期:2015-12-05 发布日期:2015-12-05
  • 通讯作者: Seyed Ebrahim Pourmand E-mail:se.pourmand@gmail.com
  • 基金资助:
    Project supported by Estahban Branch, Islamic Azad University.

Effects of 946-nm thermal shift and broadening on Nd3+:YAG laser performance

Seyed Ebrahim Pourmanda, Ghasem Rezaeib   

  1. a Department of Optics and Laser Engineering, Estahban Branch, Islamic Azad University, Estahban, Iran;
    b Department of Physics, College of Sciences, Yasouj University, Yasouj 75914-353, Iran
  • Received:2015-04-30 Revised:2015-06-30 Online:2015-12-05 Published:2015-12-05
  • Contact: Seyed Ebrahim Pourmand E-mail:se.pourmand@gmail.com
  • Supported by:
    Project supported by Estahban Branch, Islamic Azad University.

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摘要： Spectroscopic properties of flashlamp pumped Nd3+:YAG laser are studied as a function of temperature in a range from-30 ℃ to 60 ℃. The spectral width and shift of quasi three-level 946.0-nm inter-Stark emission within the respective intermanifold transitions of 4F3/2→4I9/2 are investigated. The 946.0-nm line shifts toward the shorter wavelength and broadens. In addition, the threshold power and slope efficiency of the 946.0-nm laser line are quantified with temperature. The lower the temperature, the lower the threshold power is and the higher the slope efficiency of the 946.0-nm laser line is, thus the higher the laser output is. This phenomenon is attributed to the ion-phonon interaction and the thermal population in the ground state.

关键词: 946-nm Nd:YAG laser, thermal broadening, thermal shift, flashlamp pump, slope efficiency, threshold power

Abstract: Spectroscopic properties of flashlamp pumped Nd3+:YAG laser are studied as a function of temperature in a range from-30 ℃ to 60 ℃. The spectral width and shift of quasi three-level 946.0-nm inter-Stark emission within the respective intermanifold transitions of 4F3/2→4I9/2 are investigated. The 946.0-nm line shifts toward the shorter wavelength and broadens. In addition, the threshold power and slope efficiency of the 946.0-nm laser line are quantified with temperature. The lower the temperature, the lower the threshold power is and the higher the slope efficiency of the 946.0-nm laser line is, thus the higher the laser output is. This phenomenon is attributed to the ion-phonon interaction and the thermal population in the ground state.

Key words: 946-nm Nd:YAG laser, thermal broadening, thermal shift, flashlamp pump, slope efficiency, threshold power

中图分类号:  (Laser spectroscopy)

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