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    • 2. 发明申请
    • A SUPER CONTINUUM SOURCE COMPRISING A PHOTONIC CRYSTAL FIBRE, A SYSTEM, A METHOD AND USE
    • 包含光子晶体光纤的超连续光源,系统,方法和用途
    • WO2007079750A1
    • 2007-07-19
    • PCT/DK2007/000011
    • 2007-01-09
    • NKT RESEARCH & INNOVATION A/SPEDERSEN, Morten ØstergaardTHOMSEN, Carsten, L.FEUCHTER, Thomas
    • PEDERSEN, Morten ØstergaardTHOMSEN, Carsten, L.FEUCHTER, Thomas
    • G02F1/365G02B6/02G02B6/036
    • G02F1/365G02B6/02366G02F1/353G02F2202/32
    • The invention relates to the field of light sources, more specifically to a light source generating a super continuum spectrum. The invention further relates to a system for, use of and a method of generating a super continuum spectrum. An object of the present invention is to provide a super continuum light source. The invention is embodied by a super continuum source comprising: a) an amplifier section comprising a length of a large-mode area (LMA) micro-structured, double clad amplifying fibre comprising a core region, inner and outer cladding regions wherein the outer cladding region comprises a ring of air holes, and wherein a numerical aperture of the inner cladding region being larger than 0.4, and b) a coupling section, and c) a non-linear section comprising a length of a small-mode field diameter non-linear fibre. The relatively low non-linearity in the amplifier section together with the relatively highly non-linear fibre of the non-linear section enables the generation of a super continuum covering the UV and the visible wavelength range using pico-second pulses. The invention may e.g. be used in applications ranging from spectroscopy to ultra-short-pulse generation, including optical radar and ranging (LIDAR)1 spectroscopy, optical computing, and reaction rate studies.
    • 本发明涉及光源领域,更具体地涉及产生超连续谱的光源。 本发明还涉及一种用于产生超连续谱的系统,用于生成超连续谱。 本发明的目的是提供一种超连续光源。 本发明由超连续体源实现,包括:a)放大器部分,其包括一长度的大模面积(LMA)微结构的双包层放大光纤,其包括芯区域,内包层区域和外包层区域,其中外包层 所述区域包括一个气孔环,并且其中所述内包层区域的数值孔径大于0.4,以及b)耦合部分,以及c)非线性部分, 线性纤维 放大器部分中的相对低的非线性以及非线性部分的相对高度的非线性光纤使得能够使用微秒脉冲产生覆盖UV和可见波长范围的超连续体。 本发明可以例如。 用于从光谱到超短脉冲生成的应用,包括光学雷达和测距(LIDAR)1光谱,光学计算和反应速率研究。