中国科技论文在线

上传时间

2010年07月25日

【期刊论文】Electrically tunable Sagnac filter based on aphotonic bandgap fiber with liquid crystal infused

刘艳格， Jiangbing Du，， Yange Liu， * Zhi Wang， Bing Zou， Bo Liu， and Xiaoyi Dong

October 1, 2008/Vol.33, No.19/OPTICS LETTERS 2215-2217，-0001，（）：

-1年11月30日

We demonstrate an electrically tunable Sagnac filter based on a photonic bandgap fiber that is realized by infusing liquid crystal into a solid-core air-hole photonic crystal fiber. The filter enables an electrical tuning with a range of about 26nm for one single interference minimum in the transmission bandgap from 1330 to 1650nm wavelength. The tuning efficiency is averaged to 0.53nm/V. © 2008 Optical Society of America

36浏览
0点赞
0收藏
0分享
72下载
0

引用

上传时间

2010年07月25日

【期刊论文】Directional couplers operated by resonantcoupling in all-solid photonic bandgap fibers

刘艳格， Zhi Wang*， Yange Liu， Guiyun Kai， Jianguo Liu， Yan Li， Tingting Sun， Long Jin， YangYue， Weigang Zhang， Shuzhong Yuan， and Xiaoyi Dong

9 July 2007/Vol.15, No.14/OPTICS EXPRESS 8925-8930，-0001，（）：

-1年11月30日

摘要

We have proposed directional couplers operated by resonantcoupling in all-solid photonic bandgap fibers structure which consist of acladding with an array of high-index rods in silica background, two coresformed by omitting two rods, and some defect rods introduced by reducingthe diameter of the high-index rods between the cores. The resonant effectinduced by the avoided crossing between core-guided supermodes anddefect-guided modes significant decreases the coupling length. Thedirectional couplers proposed in this paper are almost polarizationindependent and have potential application in realizing integrating all-fibercommunication devices

35浏览
0点赞
0收藏
0分享
54下载
0

引用

上传时间

2010年07月25日

【期刊论文】Simultaneous four-wavelength lasing oscillationsin an erbium-doped fiber laser with two highbirefringence fiber Bragg gratings

刘艳格， Yange Liu， Xinhuan Feng， Shuzhong Yuan， Guiyun Kai， and Xiaoyi Dong

17 May 2004/Vol.12, No.10/OPTICS EXPRESS 2056-2061，-0001，（）：

-1年11月30日

摘要

A novel multiwavelength erbium-doped fiber laser configurationis proposed and demonstrated. The laser can produce simultaneousfour-wavelength lasing oscillations with a minimum wavelength spacing ofonly 0.36 nm in C-band via using two fiber Bragg gratings written in highbirefringence fiber, while ensuring fairly stable room-temperature operation.The laser can also achieve switching modes among four wavelengths bysimple adjustment of two polarization controllers in the cavities. Theconfiguration is based on the polarization hole burning and overlappingcavities principle. The laser has the advantages of simple all-fiberconfiguration, low cost, high stability and operating at room temperature.