Zhang Guo, Sun Shuai, Zhang Yao, Sheng Quan, Shi Wei, Yao Jianquan. Theoretical investigation on optically pumped THz fiber laser based on negative curvature hollow-core fiber[J]. Infrared and Laser Engineering, 2020, 49(2): 0205001-0205001. doi: 10.3788/IRLA202049.0205001
Citation:
|
Zhang Guo, Sun Shuai, Zhang Yao, Sheng Quan, Shi Wei, Yao Jianquan. Theoretical investigation on optically pumped THz fiber laser based on negative curvature hollow-core fiber[J]. Infrared and Laser Engineering, 2020, 49(2): 0205001-0205001. doi: 10.3788/IRLA202049.0205001
|
Theoretical investigation on optically pumped THz fiber laser based on negative curvature hollow-core fiber
-
Zhang Guo1,2
,
-
Sun Shuai1,2
,
-
Zhang Yao1,2
,
-
Sheng Quan1,2
,
-
Shi Wei1,2
,
-
Yao Jianquan1,2
-
1. The Institute of Laser & Opto-electronics, School of Precision Instrument & Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;
-
2. Key Laboratory of Opto-electronics Information Technology(Ministry of Education), Tianjin University, Tianjin 300072, China
- Received Date: 2019-10-05
- Rev Recd Date:
2019-11-25
- Publish Date:
2020-03-02
-
Abstract
Based on the compact and efficient optically pumped terahertz laser(OPTL) technology, an optically pumped terahertz fiber laser(OPTFL) based on a negative curvature hollow core fiber was designed. This OPTFL used a hollow-core fiber with polymethylpentene(PMP) material as operation gas chamber and was filled with methanol gas and pumped by 9P(36) continuous-wave(CW) CO2 laser. Based on rate equations and the transmission theory in hollow core fiber, factors affecting the output characteristics of OPTFL were analyzed. By investigating inner microstructure of hollow-core fiber, a negative curvature hollow-core fiber for efficiently transmitting terahertz waves was proposed. Considering the designed negative curvature hollow-core fiber, the feasibility of long cavity OPTFL was analyzed. Theoretical calculations showed that by appropriately increasing the cavity length of the proposed OPTFL, the terahertz output power was expected to reach the order of 100 milliwatts with optimal operating conditions. The results provide a new method for the OPTFL with high power and high performance.
-
References
[1]
|
Chengli Wei, Joseph Weiblen R, Curtis R. Menyuk, et al. Negative curvature fibers[J]. Advances in Optics and Photonics, 2017, 9(3):504-561. |
[2]
|
Poletti, Francesco. Nested antiresonant nodeless hollow core fiber[J]. Optics Express, 2014, 22(20):23807-23828. |
[3]
|
Hartung A, Kobelke J, Schwuchow A, et al. Low-loss single-mode guidance in large-core antiresonant hollow-core fibers[J]. Optics Letters, 2015, 40(14):3432-3435. |
[4]
|
Kai Z, Wei S, Xu D G, et al. Optically pumped terahertz sources[J]. Science China Technological Sciences, 2017, 60(12):1801-1818. |
[5]
|
Chang T Y, Bridges T J. Laser action at 452, 496, and 541μm in optically pumped CH3F[J]. Optics Communications, 1970, 1(9):423-426. |
[6]
|
Nampoothiri A V V, Ratanavis A, Campbell N, et al. Molecular C2H2 and HCN lasers pumped by an optical parametric oscillator in the 1.5-microm band[J]. Optics Express, 2010, 18(3):1946-1951. |
[7]
|
Nampoothiri A V V, Beygi Azar Aghbolagh F, Debord B, et al. High photon conversion efficiency continuous wave lasing in an optically pumped I2 hollow fiber gas laser in the visible region[J]. Applied Optics, 2017, 56(34):9592-9595. |
[8]
|
Yan D, Zhang H, Xu D, et al. Numerical study of compact terahertz gas laser based on photonic crystal fiber cavity[J]. Journal of Lightwave Technology, 2016, 34(14):3373-3378. |
[9]
|
Zhou Zhiyue, Tang Ni, Li Zhixian, et al. High-power tunable mid-infrared fiber gas laser source by acetylene-filled hollow-core fibers[J]. Optics Express, 2018, 26(15):19144-19153. |
[10]
|
Detemple T, Danielewicz E. Continuous-wave CH3F waveguide laser at 496μm:Theory and experiment[J]. IEEE Journal of Quantum Electronics, 1976, 12(1):40-47. |
[11]
|
Frosz M H, Roth P, Günendi M C, et al. Analytical formulation for the bend loss in single-ring hollow-core photonic crystal fibers[J]. Photonics Research, 2017, 5(2):91-94. |
[12]
|
Zhang H, Liu M, Zhang Y. Output power enhancement of optical pumped gas waveguide terahertz laser by promoting vibrational de-excitation[J]. Optics Communications, 2014, 326(5):29-34. |
-
-
Proportional views
-