Analysis on the thermal effect of dual-end pumped Tm:YLF crystal

Zhu-long Huang; Guang-yong Jin; Xin-yu Chen; Chun-ting Wu; Lei Wang

doi:10.1117/12.2072853

18 November 2014 Analysis on the thermal effect of dual-end pumped Tm:YLF crystal

Zhu-long Huang, Guang-yong Jin, Xin-yu Chen, Chun-ting Wu, Lei Wang

Proceedings Volume 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics; 92981N (2014) https://doi.org/10.1117/12.2072853
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

The theoretical model of thermal-steady-state anisotropic Tm:YLF crystal was built based on the practical operation condition. Integral transformation was used to get the analytical expression of the distribution of temperature in Tm crystal and thermal focal length. Matlab was used to simulate the influence of pump power density, crystal length and doping density to the distribution of temperature and thermal focal length. The results showed that under the invariant pumping power density and crystal length, the temperature rise and nonuniformity of thermal distortion are intensified by the increase of doping density which leads to a worse thermal effect. Under the invariant pumping power and doping density, the temperature rise and nonuniformity of thermal distortion are weaken by the modest increase of crystal length which leads to a good thermal condition. When the product of crystal length and doping concentration is a constant value, the thermal focal length keeps basic consistent. Furthermore, the simulated results are that when the dual-pumped power is 60W and waist radius is 430μm, the thermal focal length of 12mm, 3at.% doped which perpendicular and parallel to c axis are 184mm and 261mm respectively, and the thermal focal length of 12mm, 3.5at.% doped which perpendicular and parallel to c axis are 171mm and 243mm respectively. The results in this paper provide theoretical basis for thermal compensation and cavity design of dual-pumped Tm:YLF laser, meanwhile, the model built can be used to analyze other anisotropic crystals.

Citation Download Citation

Zhu-long Huang, Guang-yong Jin, Xin-yu Chen, Chun-ting Wu, and Lei Wang "Analysis on the thermal effect of dual-end pumped Tm:YLF crystal", Proc. SPIE 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, 92981N (18 November 2014); https://doi.org/10.1117/12.2072853

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Crystals

Thermal effects

Laser crystals

Doping

Thermal modeling

Thulium

Absorption

Show All Keywords

Keywords/Phrases

Search In:

Publication Years