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    • 3. 发明公开
    • A SOURCE OF OPTICAL SUPERCONTINUUM RADIATION
    • EINE QUELLE VON OPTISCHER SUPERKONTINUUM-STRAHLUNG
    • EP3125036A1
    • 2017-02-01
    • EP16172281.4
    • 2009-02-06
    • Fianium Limited
    • KNIGHT, Jonathan CaveSKRYABIN, Dmitry VladimirovichSTONE, James Morgan
    • G02F1/365G02B6/02
    • H01S3/06741G02B6/02G02B6/02214G02B6/02347G02F1/365G02F2001/3528G02F2202/32H01S3/08086H01S3/094003
    • An optical supercontinuum radiation source (10) for generating a broad optical supercontinuum from pump radiation having a wavelength in the range 900nm to 1200nm. The source comprises a microstructured optical fibre (20) and a pump laser (30) adapted to generate pump radiation in the range 900nm to 1200nm and to pump the microstructured optical fibre with the pump radiation. The fibre comprises a core region, which comprises a first refractive index and supports a plurality of modes at said pump wavelength, and a cladding region, which surrounds the core region and comprises an effective refractive index such that the fibre has a delta, Δ, value of greater than 0. 0 3. The cladding region comprises at least two air holes extending along the length of fibre. The ratio of the diameter of the air holes to their pitch is greater than 0.6. The fibre comprises a zero dispersion wavelength within ±200nm of the pump wavelength.
    • 一种光学超连续谱辐射源(10),用于从具有波长在900nm至1200nm范围内的泵浦辐射产生宽光学超连续谱。 源包括微结构光纤(20)和适于产生在900nm至1200nm范围内的泵浦辐射的泵浦激光器(30),并且用泵浦辐射泵送微结构光纤。 光纤包括芯区域,其包括第一折射率并且在所述泵浦波长处支持多个模式,以及包围区域,其包围芯区域并且包括有效折射率,使得光纤具有三角形,“, 值大于0. 0 3.包层区域包括沿纤维长度延伸的至少两个气孔。 气孔的直径与其间距的比率大于0.6。 光纤包括在泵浦波长的±200nm内的零色散波长。