高效太赫兹波光光子晶体光纤光学参量振荡器

High efficiency terahertz-wave photonic crystal fiber optical parametric oscillator.

作者信息

Li Shaopeng, Liu Hongjun, Huang Nan, Sun Qibing, Li Xuefeng

机构信息

State Key Laboratory of Transient Optics and Photonics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi’an 710119, China.

出版信息

Appl Opt. 2012 Aug 1;51(22):5579-84. doi: 10.1364/AO.51.005579.

DOI:10.1364/AO.51.005579

PMID:22859051

Abstract

We theoretically propose phase matched terahertz (THz)-wave generation via degenerate four-wave mixing (FWM) in a fiber optical parametric oscillator (FOPO) with our newly designed photonic crystal fiber (PCF). Perfect phase matching is realized when we locate the pump wavelength in the normal group-velocity dispersion (GVD) regime. The generated THz-wave can be tuned from 4.7578 to 5.9015 THz by varying the pump wavelength. Moreover, peak power of 27.38 W at 5.9015 THz with conversion efficiency of 1.37% is realized when the pump peak power of 2000 W is at 4.675 μm in our FOPO.

摘要

我们从理论上提出，在具有我们新设计的光子晶体光纤（PCF）的光纤光学参量振荡器（FOPO）中，通过简并四波混频（FWM）产生相位匹配的太赫兹（THz）波。当我们将泵浦波长置于正常群速度色散（GVD）区域时，可实现完美的相位匹配。通过改变泵浦波长，所产生的太赫兹波可在4.7578至5.9015太赫兹之间调谐。此外，当我们的FOPO中泵浦峰值功率为2000W且波长为4.675μm时，在5.9015太赫兹处实现了27.38W的峰值功率，转换效率为1.37%。