HOLLOW-CORE PHOTONIC CRYSTAL FIBER BASED OPTICAL COMPONENT FOR BROADBAND RADIATION GENERATION

    公开(公告)号:WO2020259972A1

    公开(公告)日:2020-12-30

    申请号:PCT/EP2020/065315

    申请日:2020-06-03

    Inventor: ABDOLVAND, Amir

    Abstract: Disclosed is a broadband light source device, being configured for generating broadband or white light output. The broadband light source device comprises a gas cell, and a hollow-core photonic crystal fiber at least partially enclosed within the gas cell. A gas mixture is comprised within the gas cell and the hollow- core photonic crystal fiber. The gas mixture comprises at least one Raman active molecular gas constituting more than 2% of the gas mixture, such that the broadband light source device operates in a balanced Kerr-Raman nonlinear interaction regime.

    OPTICAL FIBERS AND PRODUCTION METHODS THEREFOR

    公开(公告)号:WO2020083624A1

    公开(公告)日:2020-04-30

    申请号:PCT/EP2019/076832

    申请日:2019-10-03

    Abstract: An optical fiber, manufacturing intermediate for forming an optical fiber and a method for forming an optical fiber. The method comprises providing a manufacturing intermediate (300) having an elongate body and comprising an outer tube (308) and a plurality of inner tubes (304), the plurality of inner tubes being arranged in the outer tube, the plurality of inner tubes being arranged in one or more ring structures around, and at least partially defining, an aperture (302) extending through the elongate body along an axial dimension of the elongate body, a boundary of the aperture defining an internal surface of the manufacturing intermediate. The method further comprises etching the internal surface of the manufacturing intermediate using an etching substance, and drawing the manufacturing intermediate along the axial dimension so as to form the optical fiber.

    IMPROVED BROADBAND RADIATION GENERATION IN PHOTONIC CRYSTAL OR HIGHLY NON-LINEAR FIBRES

    公开(公告)号:EP4163715A1

    公开(公告)日:2023-04-12

    申请号:EP21201043.3

    申请日:2021-10-05

    Abstract: Radiation source assembly and method for generating broadband radiation by spectral broadening. The radiation source assembly comprises a pump assembly configured to provide broadband input radiation. The pump assembly comprises a pump source configured to provide first radiation at a pump wavelength, and a broadband assembly configured to provide second radiation comprising a continuous wavelength range, wherein the first radiation and the second radiation form the broadband input radiation. The radiation source assembly further comprises an optical fibre configured to receive the broadband input radiation. The optical fibre comprises a core configured along at least a part of the length of the fibre to guide the received broadband input radiation during propagation through the fibre, so as to generate broadband radiation by spectral broadening to be output by the fibre.

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