| Broad and ultra-flattened supercontinuum generation in the visible wavelengths based on the fundamental mode of photonic crystal fibre with central holes |
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| 作者姓名： | 苑金辉 桑新柱 余重秀 忻向军 申向伟 张锦龙 周桂耀 李曙光 侯蓝田 |
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| 作者单位： | Key Laboratory of Information Photonics and Optical Communications(BUPT) of Ministry of Education,Institute of Optical Communication and Optoelectronics,Beijing University of Posts and Telecommunications Institute of Infrared Optical Fibers and Sensors,College of Information Science and Engineering,Yanshan University |
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| 基金项目： | Project supported by the National Key Basic Research Special Foundation of China (Grant No. 2010CB327605 and 2010CB328300), National High-Technology Research and Development Program of China (Grant No. 2009AA01Z220), the Key Program of Chinese Ministry of |
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| 摘 要： | By coupling a train of femtosecond pulses with 100 fs pulse width at a repetition rate of 76 MHz generated by a mode-locked Ti:sapphire laser into the fundamental mode of photonic crystal fibre(PCF) with central holes fabricated through extracting air from the central hole,the broad and ultra-flattened supercontinuum(SC) in the visible wavelengths is generated.When the fundamental mode experiences an anomalous dispersion regime,three phases in the SC generation process are primarily presented.The SC generation(SCG) in the wavelength range from 470 nm to 805 nm does not emerge significant ripples due to a higher pump peak power and the corresponding mode fields at different wavelengths are observed using Bragg gratings.The relative intensity fluctuations of output spectrum in the wavelength ranges of 530 nm to 640 nm and 543 nm to 590 nm are only 0.028 and 0.0071,respectively.
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| 关 键 词： | photonic crystal fibre(PCF) fundamental mode broad and ultra-flattened supercontinuum visible wavelengths |
| 收稿时间： | 2010-08-21 |
Broad and ultra-flattened supercontinuum generation in the visible wavelengths based on the fundamental mode of photonic crystal fibre with central holes |
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| Yuan Jin-Hui,Sang Xin-Zhu,Yu Chong-Xiu,Xin Xiang-Jun,Shen Xiang-Wei,Zhang Jin-Long,Zhou Gui-Yao,Li Shu-Guang and Hou Lan-Tian.Broad and ultra-flattened supercontinuum generation in the visible wavelengths based on the fundamental mode of photonic crystal fibre with central holes[J].Chinese Physics B,2011,20(5):54210-054210. |
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| Authors: | Yuan Jin-Hui Sang Xin-Zhu Yu Chong-Xiu Xin Xiang-Jun Shen Xiang-Wei Zhang Jin-Long Zhou Gui-Yao Li Shu-Guang and Hou Lan-Tian |
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| Institution: | Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Information Photonics and Optical Communications (BUPT) of Ministry of Education, Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China;Institute of Infrared Optical Fibers and Sensors, College of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;Institute of Infrared Optical Fibers and Sensors, College of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;Institute of Infrared Optical Fibers and Sensors, College of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | By coupling a train of femtosecond pulses with 100 fs pulse width at a repetition rate of 76 MHz generated by a mode-locked Ti: sapphire laser into the fundamental mode of photonic crystal fibre (PCF) with central holes fabricated through extracting air from the central hole, the broad and ultra-flattened supercontinuum (SC) in the visible wavelengths is generated. When the fundamental mode experiences an anomalous dispersion regime, three phases in the SC generation process are primarily presented. The SC generation (SCG) in the wavelength range from 470 nm to 805 nm does not emerge significant ripples due to a higher pump peak power and the corresponding mode fields at different wavelengths are observed using Bragg gratings. The relative intensity fluctuations of output spectrum in the wavelength ranges of 530 nm to 640 nm and 543 nm to 590 nm are only 0.028 and 0.0071, respectively. |
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| Keywords: | photonic crystal fibre (PCF) fundamental mode broad and ultra-flattened supercontinuum visible wavelengths |
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