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    • 4. 发明申请
    • WAVEGUIDE LASER LIGHT SOURCE SUITABLE FOR PROJECTION DISPLAYS
    • 波长激光灯适用于投影显示屏
    • WO2005022708A8
    • 2007-02-15
    • PCT/IB2004051516
    • 2004-08-20
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVMOENCH HOLGERHEUSLER GERO
    • MOENCH HOLGERHEUSLER GERO
    • H01S3/063H01S3/094H01S3/0941H01S3/16H01S3/23H01S5/02H01S5/40H04N9/31
    • H04N9/3129H01S3/0632H01S3/0637H01S3/094092H01S3/09415H01S3/1608H01S3/2391H01S5/02248H01S5/02272H01S5/4031H04N9/315
    • The invention relates to a semiconductor diode laser used to pump a waveguide and their use as light source. A waveguide laser (15) according to the present invention producing visible wavelength radiation from IR wavelength radiation com­prising: a) at least one semiconductor diode laser or diode laser bar (8) producing IR wave­length radiation; b) at least one upconversion layer (13a, 13b, 13c) having a thickness of at least 1 µm thicker than the thickness of the emitting layer in the semiconductor diode laser that converts the IR wavelength radiation into visible wavelengths by an upconversion process of photon absorption energy transfer followed by emission; c) at least one opti­cal resonator which recirculates the visible wavelength radiation and/or at least one optical resonator which recirculates the IR wavelength radiation; whereby - the laser diode or laser diode bar and the upconversion layer(s) are arranged on the same sub­strate or each on a separate substrate (12, 14); - the laser diode or laser diode bar and the up­conversion layer(s) are adjacent arranged, whereby a gap between the adjacent arranged diode laser bar and the upconversion layer(s) is formed; or - the laser diode or laser diode bar and the upconversion layer(s) are contacting arranged in this order; and whereby the waveguide laser has a beam quality M2 of = 2 and = 1000.
    • 本发明涉及一种用于泵浦波导的半导体二极管激光器及其作为光源的用途。 根据本发明的波导激光器(15)产生来自IR波长辐射的可见波长辐射,包括:a)至少一个产生IR波长辐射的半导体二极管激光器或二极管激光棒(8); b)至少一个上转换层(13a,13b,13c),其厚度比半导体二极管激光器中的发光层的厚度厚至少1μm,其通过光子上转换过程将IR波长辐射转换成可见光波长 吸收能量转移后排放; c)至少一个使可见波长辐射再循环的光学谐振器和/或使IR波长辐射再循环的至少一个光学谐振器; 由此 - 激光二极管或激光二极管棒和上转换层被布置在相同的衬底上或者每个在单独的衬底(12,14)上; - 激光二极管或激光二极管棒和上变频层相邻布置,由此形成相邻布置的二极管激光棒与上转换层之间的间隙; 或 - 激光二极管或激光二极管条和上转换层以这种顺序接触; 并且由此波导激光器具有= 2和= 1000的光束质量M2。