High-Power High-Brightness Terahertz Source Based on Nonlinear Optical Crystal Fiber

被引：8
|
作者：
Liu, Pengxiang [1 ,2 ,3 ]
Shi, Wei [1 ]
Xu, Degang [1 ]
Zhang, Xinzheng [2 ,3 ]
Yao, Jianquan [1 ]
Norwood, Robert A. [4 ]
Peyghambarian, Nasser [4 ]
机构：
[1] Tianjin Univ, Coll Precis Instruments & Optoelect Engn, Tianjin 300072, Peoples R China
[2] Nankai Univ, Key Lab Weak Light Nonlinear Photon, Minist Educ, Sch Phys, Tianjin 300071, Peoples R China
[3] TEDA Appl Phys Inst, Tianjin 300071, Peoples R China
[4] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2016年 / 22卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Brightness; difference frequency generation; single-mode fiber; terahertz-wave generation; DIFFERENCE-FREQUENCY-GENERATION; WAVE GENERATION; PARAMETRIC OSCILLATOR; THZ SOURCE; EFFICIENT; CONVERSION; GAAS;
D O I：
10.1109/JSTQE.2015.2475619
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A nonlinear crystal fiber converter for terahertz (THz) difference frequency generation (DFG) is proposed. This axisymmetric structure consists of a periodically inverted GaAs core clad with index-matched chalcogenide glass, which functions as a single-mode fiber for THz radiation to prevent its diffraction and achieve efficient optical-to-THz conversion. The process of DFG between ps-pulses in the crystal fiber is investigated by developing the guided-wave coupled-mode equations for quasi-monochromatic pulses. The output power, spectral power density, and brightness are analyzed, based on the calculations of the dynamic of energy conversion and the characteristics of the THz beam focusing. High output power as well as excellent beam quality contributes to the high brightness of the presented THz crystal fiber source.
引用
收藏
页码：360 / 364
页数：5
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