Design and analysis on optically pumped gas THz fiber laser based on hollow-core anti-resonant fiber

Guo Zhang; Shuai Sun; Yao Zhang; Quan Sheng; Wei Shi; Jianquan Yao

doi:10.1117/12.2544556

21 February 2020 Design and analysis on optically pumped gas THz fiber laser based on hollow-core anti-resonant fiber

Guo Zhang, Shuai Sun, Yao Zhang, Quan Sheng, Wei Shi, Jianquan Yao

Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112601G (2020) https://doi.org/10.1117/12.2544556
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

We designed and analyzed a novel optically pumped gas THz fiber laser (OPTFL) based on hollow-core anti-resonant fiber (HC-ARF). The OPTFL filled with methanol vapor and pumped by a continuous-wave tunable CO2 laser. Combining the rate equations and the THz wave transmission theory in HC-ARF, factors that impacting THz output are analyzed. By investigating the inner structure of HC-ARF, a HC-ARF with an intrinsic single-mode transmission and a low confinement loss lower than 0.2 dB/m in OPTFL is proposed for efficiently transmitting THz waves. Theoretical analysis indicate that by appropriately increasing the cavity length, the output power of OPTFL is expected to reach the magnitude of 100 milliwatts with optimal operating conditions. The results provide an available method for highperformance THz laser source.

Citation Download Citation

Guo Zhang, Shuai Sun, Yao Zhang, Quan Sheng, Wei Shi, and Jianquan Yao "Design and analysis on optically pumped gas THz fiber laser based on hollow-core anti-resonant fiber", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601G (21 February 2020); https://doi.org/10.1117/12.2544556

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