利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

54 条记录 (耗时 0.008 秒)

    Laser amplifier and laser oscillator
    21.
    发明公开
    Laser amplifier and laser oscillator 有权
    激光放大器和激光振荡器

    公开(公告)号：EP1039593A3

    公开(公告)日：2003-09-10

    申请号：EP00105778.5

    申请日：2000-03-18

    申请人： NEC CORPORATION

    发明人： Kasamatsu, Tadashi, c/o NEC Corporation

    IPC分类号： H01S3/094 ,  H01S3/16 ,  H01S3/067

    CPC分类号： H01S3/094 ,  H01S3/06716 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H01S3/173

    摘要： A laser amplifier and/or oscillator comprise a gain medium including rare earth dopant in a host medium. Ions of the rare earth dopant has an energy level structure including a ground level and a pair of laser upper level and laser lower levels between which a stimulated transition is to be produced after production of a population inversion between the pair of laser upper and laser lower levels. A first exciting light source is coupled to the gain medium for introducing first exciting light to said gain medium to produce said population inversion. A second exciting light source is coupled to the gain medium for introducing second exciting light source to the gain medium to raise the rare earth dopant ions from the ground level to the laser lower level.

    High-power VIS solid-state laser
    22.
    发明公开
    High-power VIS solid-state laser 审中-公开
    VIS-Hochleistungs-Festkörperlaser

    公开(公告)号：EP1162705A2

    公开(公告)日：2001-12-12

    申请号：EP01106917.6

    申请日：2001-03-20

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Hasnain, Ghulam

    IPC分类号： H01S3/0941

    CPC分类号： H01S3/0941 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H01S5/32341

    摘要： The invention describes a laser capable of continuous wave operation at visible wavelengths. A diode laser lasing in the 340 to 640 nm wavelength range is used to pump a suitably doped solid state material within an optical cavity, which then emits visible light. Suitable solid state materials include ionic solids which are doped with rare earth ions. The solid state laser may be end-pumped or side-pumped.

    摘要翻译： 本发明描述了一种能够在可见光波长下连续波动的激光器。 在340至640nm波长范围内的二极管激光激光激光器用于在光腔内泵送适当掺杂的固态材料，然后发射可见光。 合适的固态材料包括掺杂有稀土离子的离子固体。 固态激光器可以是端泵浦或侧泵浦的。

    PRASEODYMIUM DOPED WAVEGUIDE LASERS
    24.
    发明授权
    PRASEODYMIUM DOPED WAVEGUIDE LASERS 失效
    PRASEODYMDOTIERTE WELLENLEITERLASER

    公开(公告)号：EP0582601B1

    公开(公告)日：1997-01-15

    申请号：EP92909073.6

    申请日：1992-04-24

    申请人： THE UNIVERSITY OF SOUTHAMPTON

    发明人： SMART, Richard A T & T Bell Laboratories ,  HANNA, David, Colin 346 Hill lane ,  TROPPER, Anne, Christine 1 Parkside Cottages

    IPC分类号： H01S3/06 ,  H01S3/094 ,  H04B10/00

    CPC分类号： H01S3/06708 ,  H01S3/094003 ,  H01S3/094092 ,  H01S3/1613 ,  H01S3/173

    摘要： The invention is based on the discovery that under certain conditions lasing at room temperature can be achieved in a Pr3+-doped fluorozirconate fibre pumped in the infrared at 1.01νm and 835nm, the lasing taking place in the blue (491nm), green (520nm), orange (605nm) and red (635nm and 715nm). One laser comprises a length of Pr3+-doped potical waveguide such as a fibre, and means for exciting the Pr3+ ions to an energy level in the band (3P2, 1I6, 3P1, 3P0), in which the Pr3+ concentration is in the range substantially 50 ppm to substantially 10,000 ppm (by weight). The Pr3+ concentration is preferably in the range substantially 200 ppm to substantially 2,000 ppm (by weight). The optical fibre is preferably a fluorozirconate fibre doped at the foregoing concentrations with Pr3+ ions. The fibre preferably comprises a doped core clad with a further glass. The excitation means is preferably arranged to excite the Pr3+ ions from the 3H4 level, and this is preferably achieved by upconversion by way of the 1G4 level, but excitation may be achieved by transfer of energy from a co-dopant.

    AMPLIFYING METHOD, DEVICE AND SYSTEM OF BURST OPTICAL SIGNAL
    27.
    发明公开
    AMPLIFYING METHOD, DEVICE AND SYSTEM OF BURST OPTICAL SIGNAL 审中-公开
    VERSTÄRKUNGSVERFAHREN，-VORRICHTUNG UND -SYSTEMFÜROPTISCHE BURST-SIGNALE

    公开(公告)号：EP2506461A1

    公开(公告)日：2012-10-03

    申请号：EP11734370.7

    申请日：2011-01-20

    申请人： Huawei Technologies Co., Ltd.

    发明人： DING, Feng ,  LIU, Hong

    IPC分类号： H04B10/158

    CPC分类号： H04B10/296 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H04B10/2931

    摘要： Embodiments of the present invention disclose a method, an apparatus, and a system for amplifying a burst optical signal. The method includes: monitoring an input status of a signal light; when no signal light is input, controlling output power of a pump light so that a gain medium has output optical power and the output optical power is less than a maximum optical power that the gain medium is capable of outputting when a signal light is input; inputting the pump light into a wavelength division multiplexer so that the wavelength division multiplexer combines the signal light and the pump light and inputs the combined light into the gain medium. With the preceding manners, when no signal light is input, the power of the pump light is controlled, which increases a transient response speed of an optical amplifier, avoids a surge, mitigate a problem of a low startup of the optical amplifier, and implements fidelity of the burst optical signal in the amplification process.

    摘要翻译： 本发明的实施例公开了一种用于放大突发光信号的方法，装置和系统。 该方法包括：监视信号灯的输入状态; 当不输入信号光时，控制泵浦光的输出功率，使得增益介质具有输出光功率，并且输出光功率小于在输入信号光时增益介质能够输出的最大光功率; 将泵浦光输入波分多路复用器，使得波分多路复用器将信号光和泵浦光组合并将组合的光输入到增益介质中。 按照上述方式，当没有输入信号光时，泵浦光的功率受到控制，这增加了光放大器的瞬态响应速度，避免了浪涌，减轻了光放大器低启动的问题，并实现了 突发光信号在放大过程中的保真度。