Analysis of thermal stability based on V-type folded cavity

FAN Yiming; WEI Yong; ZHANG Ge; LI Hongming; TAO Jiayou; ZHOU Yueping

doi:10.7510/jgjs.issn.1001-3806.2018.02.013

LASER TECHNOLOGY > 2018 > 42(2): 206-211. > DOI: 10.7510/jgjs.issn.1001-3806.2018.02.013

FAN Yiming, WEI Yong, ZHANG Ge, LI Hongming, TAO Jiayou, ZHOU Yueping. Analysis of thermal stability based on V-type folded cavity[J]. LASER TECHNOLOGY, 2018, 42(2): 206-211. DOI: 10.7510/jgjs.issn.1001-3806.2018.02.013

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Analysis of thermal stability based on V-type folded cavity

1.
School of Physics and Electronics, Hunan Institute of Science and Technology, Yueyang 414006, China
2.
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
3.
Yueyang Main Land Laser Technology Co. Ltd., Yueyang 414000, China

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Received Date: May 02, 2017
Revised Date: May 22, 2017
Published Date: March 24, 2018

Graphical Abstract

Abstract

Abstract

In order to improve the thermal stability of V-type resonant cavity, based on graphic analysis, a simple V-type folded cavity was transformed into a coaxial spherical cavity with a thin lens. At the same time, considering the thermal effect of lens and combining with equivalent cavity analysis method of multi element optical resonator, the V-type folded cavity with lens group was transformed into a coaxial spherical cavity with no lens in the cavity. And the thermal stability of coaxial spherical cavity with no lens was calculated and analyzed. The results show that, the cavity has the widest range of thermal stability when the total cavity is 75mm and the fold angle is 0.15π. When the interval between the gain medium and folding mirror is 28mm, the focal length of the minimum thermal lens being suitable for the cavity can reach 12mm. The study shows that the key parameters of the cavity are important to thermal stability, and it has guiding significance for the optimization design of laser cavity stability.
- optical design,
- V-type folded cavity,
- equivalent cavity analysis,
- cavity stability

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References (19)

References

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