Narrowband terahertz source based on four-wave mixing

被引：0
|
作者：
Zhou P. [1 ]
Fan D. [1 ]
机构：
[1] National Laboratory for High Power Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 08期
关键词：
Four-wave mixing; Nonlinear optics; Phase-matching; Polarization-maintaining optical fibers; Terahertz radiation source;
D O I：
10.3788/HPLPB20102208.1735
中图分类号：
学科分类号：
摘要：
This paper proposes theoretically a novel terahertz source based on polarization-maintaining optical fibers. Utilizing the dual-wavelength laser as the pump source and four-wave-mixing effect in the optical fibers, a compact wide-tunable narrowband terahertz source can be constructed. The surface-emitting scheme is used to decrease the absorption loss of terahertz waves in the optical fibers. The four-wave mixing process and the phase-matching conditions are discussed through the coupled-wave theory, and the analytical expression of terahertz output power is obtained. It is shown that when the pump peak power is about 1 kW, the terahertz peak power is about 350 mW at 6 THz, and the power conversion efficiency is about 0.01%. This scheme provides a possibility to realize a high-power, compact narrowband terahertz source.
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页码：1735 / 1739
页数：4
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