共 50 条
- [1] Segmented detection SPR sensor based on seven-core fiberOPTICS EXPRESS, 2017, 25 (18): : 21841 - 21850Wei, Yong论文数: 0 引用数: 0 h-index: 0机构: Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaSu, Yudong论文数: 0 引用数: 0 h-index: 0机构: Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaLiu, Chunlan论文数: 0 引用数: 0 h-index: 0机构: Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaZhang, Yonghui论文数: 0 引用数: 0 h-index: 0机构: Chongqing Three Gorges Med Coll, Basic Med Dept, Chongqing 404100, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaNie, Xiangfei论文数: 0 引用数: 0 h-index: 0机构: Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaLiu, Zhihai论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaZhang, Yu论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R ChinaPeng, Feng论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Chongqing Three Gorges Univ, Coll Elect & Informat Engn, Chongqing 404100, Peoples R China
- [2] Multi-Channel Seven-Core Fiber SPR Sensor Without Temperature and Channel CrosstalkJOURNAL OF LIGHTWAVE TECHNOLOGY, 2024, 42 (06) : 2144 - 2150Feng, Chengcheng论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaMeng, Lingzhi论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaWang, Hongye论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaWang, Donghui论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaXu, Zhiyuan论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaWei, Liuxia论文数: 0 引用数: 0 h-index: 0机构: Guilin Univ Elect Technol, Sch Optoelect Engn, Guilin 541004, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaNiu, Hao论文数: 0 引用数: 0 h-index: 0机构: Guilin Univ Elect Technol, Sch Optoelect Engn, Guilin 541004, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaYang, Shitai论文数: 0 引用数: 0 h-index: 0机构: Guilin Univ Elect Technol, Sch Optoelect Engn, Guilin 541004, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R ChinaYuan, Libo论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China Guilin Univ Elect Technol, Sch Optoelect Engn, Guilin 541004, Peoples R China Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China
- [3] Temperature-Compensated Highly Sensitive Reflective SPR Fiber Sensor Based on Tapered Seven-Core FiberIEEE SENSORS JOURNAL, 2024, 24 (09) : 14328 - 14334Wu, Mengyuan论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaZhou, Jing论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaWang, Haoran论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaZheng, Shichen论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaXie, Tongtong论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaFu, Hongyan论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaChen, Nan论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R ChinaBu, Yikun论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China Xiamen Univ, Dept Elect Engn, Sch Elect Sci & Engn, Natl Model Microelect Coll,Fujian Key Lab Ultrafa, Xiamen 361005, Peoples R China
- [4] Seven-core photonic crystal fiber temperature sensorWu, Gen-Zhu (wugenzhu@zjnu.cn), 1600, Chinese Academy of Sciences (29): : 951 - 957Wu G.-Z.论文数: 0 引用数: 0 h-index: 0机构: School of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua School of Physics and Electronic Information Engineering, Zhejiang Normal University, JinhuaLin C.-T.论文数: 0 引用数: 0 h-index: 0机构: School of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua School of Physics and Electronic Information Engineering, Zhejiang Normal University, JinhuaLu J.-C.论文数: 0 引用数: 0 h-index: 0机构: School of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua School of Physics and Electronic Information Engineering, Zhejiang Normal University, JinhuaMa Q.-Q.论文数: 0 引用数: 0 h-index: 0机构: School of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua School of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua
- [5] Ultrasonic Microfiber Sensor Based on Tapered Seven-core FiberACTA PHOTONICA SINICA, 2022, 51 (03)Yang Xi论文数: 0 引用数: 0 h-index: 0机构: Northwest Univ, Sch Phys, Xian 710069, Peoples R China Northwest Univ, Sch Phys, Xian 710069, Peoples R ChinaYin Huanhuan论文数: 0 引用数: 0 h-index: 0机构: Northwest Univ, Sch Phys, Xian 710069, Peoples R China Northwest Univ, Sch Phys, Xian 710069, Peoples R ChinaShao Zhihua论文数: 0 引用数: 0 h-index: 0机构: Northwest Univ, Sch Phys, Xian 710069, Peoples R China Northwest Univ, Sch Phys, Xian 710069, Peoples R ChinaQiao Xueguang论文数: 0 引用数: 0 h-index: 0机构: Northwest Univ, Sch Phys, Xian 710069, Peoples R China Northwest Univ, Sch Phys, Xian 710069, Peoples R China
- [6] Omnidirectional vibration sensor based on fiber Bragg gratings in a seven-core fiberSEVENTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS (EWOFS 2019), 2019, 11199Cui, Jingxian论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R ChinaLiu, Zhengyong论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R ChinaGunawardena, Dinusha Serandi论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R ChinaTam, Hwa-Yaw论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China
- [7] Highly sensitive temperature and curvature sensor based on seven-core fiberOPTICS AND LASERS IN ENGINEERING, 2023, 169Zhu, Xiaojun论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaLiu, Wen论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaSun, Ang论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaPan, Yongquan论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaLi, Shuai论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaCao, Juan论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China论文数: 引用数: h-index:机构:Yang, Yongjie论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaYang, Fenghe论文数: 0 引用数: 0 h-index: 0机构: Zhangjiang Lab, Shanghai 201210, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China论文数: 引用数: h-index:机构:Liang, Zhipeng论文数: 0 引用数: 0 h-index: 0机构: Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaShi, Yuechun论文数: 0 引用数: 0 h-index: 0机构: Yongjiang Lab, Ningbo 315202, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R ChinaWu, Wuming论文数: 0 引用数: 0 h-index: 0机构: Hunan Univ, Sch Phys & Microelect, Changsha 410082, Hunan, Peoples R China Nantong Univ, Sch Informat Sci & Technol, Nantong 226019, Peoples R China
- [8] Mode coupling characteristics investigation on a tapered seven-core fiber sensorAPPLIED OPTICS, 2023, 62 (08) : 1895 - 1901Chen, W. E. I. J. U. A. N.论文数: 0 引用数: 0 h-index: 0机构: Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R ChinaLI, H. U. I.论文数: 0 引用数: 0 h-index: 0机构: Fujian Normal Univ, Coll Photon & Elect Engn, Fuzhou, Fujian, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R ChinaQiu, Y. I. S. H. E. N.论文数: 0 引用数: 0 h-index: 0机构: Fujian Normal Univ, Coll Photon & Elect Engn, Fuzhou, Fujian, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R ChinaChen, Z. H. I. H. A. O.论文数: 0 引用数: 0 h-index: 0机构: Quanzhou Normal Univ, Quanzhou, Fujian, Peoples R China Fujian Yingyu Technol Co Ltd, Pingtang, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R ChinaZhang, H. A. O.论文数: 0 引用数: 0 h-index: 0机构: Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R ChinaKang, Z. H. E. N. J. I. N. G.论文数: 0 引用数: 0 h-index: 0机构: Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R China Fujian Jiangxia Univ, Coll Elect & Informat Sci, Fuzhou, Fujian, Peoples R China
- [9] High-sensitive bending sensor based on a seven-core fiberOPTICS COMMUNICATIONS, 2021, 483Zhou, Yan论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaWang, Yu论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaLiu, Huabei论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaChen, Jinling论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaYang, Peipei论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaShe, Lijuan论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaChen, Fang论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaShao, Jie论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaGuan, Zuguang论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaZhang, Zuopeng论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaFeng, Gaofeng论文数: 0 引用数: 0 h-index: 0机构: Futong Grp Co Ltd, Fuyang 311400, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaYang, Junyong论文数: 0 引用数: 0 h-index: 0机构: Futong Grp Co Ltd, Fuyang 311400, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R ChinaChen, Daru论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou, Peoples R China
- [10] Torsion sensor based on inter-core mode coupling in seven-core fiberOPTICS EXPRESS, 2018, 26 (16): : 19835 - 19844Tan, Fengze论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R ChinaLiu, Zhengyong论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R ChinaTu, Jiajing论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Univ Sci & Technol Beijing, Beijing Engn & Technol Ctr Convergence Networks &, Beijing 100083, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R ChinaYu, Changyuan论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R ChinaLu, Chao论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R ChinaTam, Hwa-Yaw论文数: 0 引用数: 0 h-index: 0机构: Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China