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Acousto-Optics Tunable Filter Based on a hollow optical fiber for Broadband Polarization Switch Application

光学学报 2003年第S1期23卷 193-194页

作者： Jaewon Lee Jaewang Yu Sangsoo Choi Kyunghwan Oh Dong Il Yum Byoung Yoon Kim Department of Information and Communications Kwang- Ju Institute of Science and Technology Kwangju Buk-gu 500-712 Rep. of Korea Department of Physics Korea Advanced Institute Science and Technology Taejon 305701 Rep. of Korea

A novel acousto-optic tunable filter (AOTF) using a hollow optical fiber (HOF) is proposed. Its broadband rejection over 100nm was observed and high polarization dependence as a polarization switch is discussed.

关键词： hollow optical fiber hollow optical fiber tunable filter

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Theoretical Analysis and Experimental Study on Generation of a Dark hollow Beam by a Micron-sized hollow optical fiber

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Chinese Journal of Lasers 1998年第2期 13-19页

作者： WANG Wenbo1,2 GAO Weijian2 YIN Jianping2 WANG Yuzhu1(1 The Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China 2 Department of Physics, Suzhou Un

ＴｈｅｏｒｅｔｉｃａｌＡｎａｌｙｓｉｓａｎｄＥｘｐｅｒｉｍｅｎｔａｌＳｔｕｄｙｏｎＧｅｎｅｒａｔｉｏｎｏｆａＤａｒｋＨｏｌｏｗＢｅａｍｂｙａＭｉｃｒｏｎ┐ｓｉｚｅｄＨｏｌｏｗＯｐｔｉｃａｌＦｉｂｅｒＷＡＮＧＷｅｎｂ... 详细信息

ＴｈｅｏｒｅｔｉｃａｌＡｎａｌｙｓｉｓａｎｄＥｘｐｅｒｉｍｅｎｔａｌＳｔｕｄｙｏｎＧｅｎｅｒａｔｉｏｎｏｆａＤａｒｋＨｏｌｏｗＢｅａｍｂｙａＭｉｃｒｏｎ┐ｓｉｚｅｄＨｏｌｏｗＯｐｔｉｃａｌＦｉｂｅｒＷＡＮＧＷｅｎｂｏ１，２ＧＡＯＷｅｉｊｉａｎ２ＹＩ...

关键词： hollow optical fiber the weakly guiding approximation LP01 mode dark hollow beam

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LESS-INVASIVE LASER THERAPY AND DIAGNOSIS USING A TABLETOP MID-INFRARED TUNABLE LASER

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Journal of Innovative optical Health Sciences 2010年第4期3卷 285-292页

作者： HISANAO HAZAMA KATSUNORI ISHII KUNIO AWAZU Graduate School of Engineering Osaka University 2-1 YamadaokaSuitaOsaka 565-0871Japan Research Institute of Nuclear Engineering University of Fukui 3-9-1 BunkyoFukuiFukui 910-8507Japan Institute for Chemical Research Kyoto University GokashoUjiKyoto 611-0011Japan

Since numerous characteristic absorption lines caused by molecular vibration exist in the midinfrared(MIR)wavelength region,selective excitation or selective dissociation of molecules is possible by tuning the laser wavelength to the characteristic absorption lines of target *** applying this feature to the medical fields,less-invasive treatment and non-destructive diagnosis with absorption spectroscopy are possible using tunable MIR lasers.A high-energy nanosecond pulsed MIR tunable laser was obtained with difference-frequency generation(DFG)between a Nd:YAG and a tunable Cr:forsterite *** MIR-DFG laser was tunable in a wavelength range of 5.5–10μm and generated laser pulses with energy of up to 1.4mJ,a pulse width of 5 ns,and a pulse repetition rate of 10 *** removal of atherosclerotic lesion was successfully demonstrated with the MIR-DFG laser tuned at a wavelength of 5.75μm,which corresponds to the characteristic absorption of the ester bond in cholesterol esters in the atherosclerotic *** have developed a non-destructive diagnostic probe with an attenuated total reflection(ATR)prism and two hollow optical *** absorption spectrum of cholesterol was measured with the ATR probe by scanning the wavelength of the MIR-DFG laser,and the spectrum was in good agreement with that measured with a commercial Fourier transform infrared spectrometer.

关键词： Mid-infrared tunable laser difference-frequency generation selective treatment attenuated total reflection spectroscopy hollow optical fiber

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