Pulse splitter with dispersion compensation
    21.
    发明授权
    Pulse splitter with dispersion compensation 有权
    具有色散补偿的脉冲分路器

    公开(公告)号:US08941048B2

    公开(公告)日:2015-01-27

    申请号:US13395899

    申请日:2010-09-15

    摘要: The present invention relates to a pulse splitting device (5) adapted to receive irradiation pulses (10) with a central wavelength (1) from a pulsed irradiation source (2) and output a plurality of sub-pulses (11,12,15,17) for each incoming irradiation pulse. The received irradiation pulses and the pulse splitter (5) interacts so that a first and a second sub-pulse (11,12) are temporally separated by a first optical path length (OP1) in a first region and a second optical path length (OP2) in a second region, respectively. The first optical path length (OP1) times the group velocity dispersion (GVD1) with respect to wavelength in the first material, is balanced with the second optical path length (OP2) times the group velocity dispersion (GVD2) with respect to wavelength in the second material, so that the dispersion broadening of the first and the second sub-pulses (11,12) is substantially equal. This facilitates improved subsequent dispersion compensation by both sub-pulses.

    摘要翻译: 本发明涉及一种适于从脉冲辐射源(2)接收具有中心波长(1)的照射脉冲(10)并输出多个子脉冲(11,12,15, 17)。 所接收的照射脉冲和脉冲分离器(5)相互作用,使得第一和第二子脉冲(11,12)在第一区域和第二光程长度( OP2)分别在第二区域。 相对于第一材料中的波长的第一光程长度(OP1)乘以群速度色散(GVD1),与第二光程长度(OP2)相比,相对于波长的第二光程长度(OP2)乘以群速度色散(GVD2) 第二材料,使得第一和第二子脉冲(11,12)的色散扩展基本相等。 这有助于通过两个子脉冲改进随后的色散补偿。

    All polymer optical waveguide sensor
    22.
    发明授权
    All polymer optical waveguide sensor 失效
    所有聚合物光波导传感器

    公开(公告)号:US07558446B2

    公开(公告)日:2009-07-07

    申请号:US12089939

    申请日:2006-10-10

    IPC分类号: G02B6/00

    CPC分类号: G01N21/7703 G01N21/648

    摘要: The present invention is directed to an evanescent field induced optical sensor of a transparent polymer substrate coated with a thin transparent polymer waveguide for use as biosensor for detecting biological molecules, wherein the transparent polymer waveguide has a thickness of ≧0.10 μm and ≦0.50 μm and a refractive index nD of 1.39 to 1.79, said transparent polymer waveguide has a coupling grating recess structure for enhancing the coupling of the light wave into said transparent polymer waveguide, the lower surface of said transparent polymer waveguide contacts the transparent polymer substrate, said transparent polymer substrate has a refractive index n of 1.29 to 1.69, wherein the material of said transparent polymer waveguide and said transparent polymer substrate is selected such that the difference of the refractive index ΔnD of said transparent polymer waveguide and said transparent polymer substrate is at least Δ n 0.1, the outer upper surface of said polymer waveguide possess specific binding compounds to detect at least one specific chemical and/or biochemical substance or the outer upper surface of said polymer waveguide is covered with a thin noble metal layer.

    摘要翻译: 本发明涉及涂覆有用作检测生物分子的生物传感器的薄透明聚合物波导的透明聚合物基质的消逝场感应光学传感器,其中透明聚合物波导的厚度>0.10μm和<= 0.50 所述透明聚合物波导具有用于增强所述光波与所述透明聚合物波导耦合的耦合光栅凹槽结构,所述透明聚合物波导的下表面与透明聚合物基底接触,所述透明聚合物波导 透明聚合物基材的折射率n为1.29〜1.69,其中所述透明聚合物波导和所述透明聚合物基材的材料选择为使得所述透明聚合物波导和所述透明聚合物基材的折射率DeltanD的差异至少为 Δn0.1,所述聚合物的外部上表面 veguide具有特异性结合化合物以检测至少一种特定化学和/或生物化学物质,或者所述聚合物波导的外部上表面被薄的贵金属层覆盖。

    Optical record carrier
    23.
    发明申请
    Optical record carrier 审中-公开
    光记录载体

    公开(公告)号:US20060280106A1

    公开(公告)日:2006-12-14

    申请号:US10568370

    申请日:2004-08-12

    IPC分类号: G11B7/24

    摘要: The range of spatial frequencies of the information areas in an optical record carrier (130) that can be read by conventional means can be increased substantially by providing the information layer (1134) with a birefringent diffraction grating (136) and using a read beam (b) that comprises two mutually perpendicular polarised components (b1, b2) only one of which will be diffracted by the grating.

    摘要翻译: 可以通过向信息层(1134)提供双折射衍射光栅(136)并使用读取光束(136)来大大增加可以通过传统手段读取的光学记录载体(130)中的信息区域的空间频率的范围 b)包括两个相互垂直的极化分量(b 1,B 2 2),其中仅一个将被光栅衍射。

    Radiation emitting semiconductor device and method of manufacturing such a device

    公开(公告)号:US20060043381A1

    公开(公告)日:2006-03-02

    申请号:US10534385

    申请日:2003-10-31

    IPC分类号: H01L33/00 H01L21/00

    CPC分类号: H01L33/34 H01L27/15

    摘要: Radiation-emitting semiconductor device and method of manufacturing such a device. The invention relates to a radiation-emitting semiconductor device (10) comprising a silicon-containing semiconductor body (1) and a substrate (2), which semiconductor body (1) comprises a lateral semiconductor diode positioned on an insulating layer (7) which separates the diode from the substrate (2). The lateral semiconductor diode comprises a first semiconductor region (3) of a first conductivity type and with a first doping concentration, a second semiconductor region (4) of the first or a second conductivity type opposite to the first conductivity type and with a second doping concentration which is lower than the first doping concentration, and a third semiconductor region (5) of the second conductivity type and with a third doping concentration which is higher than the second doping concentration, the first and the third region (3, 5) each being provided with a connection region (6, 8), and, during operation, radiation (S) being generated in the second region (4) due to recombination of charge carriers injected therein from the first and the third region (3, 5). According to the invention, the second semiconductor region (4) comprises a central part (4A) which is surrounded by a further part (4B) the bandgap of which is larger than the bandgap of the central part (4A). In this way, the radiation yield is increased in an indirect semiconductor material such as silicon in the central part (4A) as translation of the relatively long-living charge carriers towards a non-radiative recombination center is limited because of the barriers in the valence and conduction band in the further part (4B). Preferably, the bandgap in the further part (4B) is made larger in that the thickness of said part (4B) is so small that quantum size effects occur therein, while the central part (4A) has a thickness which is so large that such effects do not occur or substantially do not occur.

    Optical coherence tomography
    25.
    发明申请
    Optical coherence tomography 有权
    光学相干断层扫描

    公开(公告)号:US20050232536A1

    公开(公告)日:2005-10-20

    申请号:US10523046

    申请日:2003-07-16

    摘要: An optical coherence tomography system comprises an optical source (1) has an emission wavelength in the range of 1.6(m to 2.0(m, in particular having an infrared emission predominantly at a wavelength of 1.8(m associated with a transition between an upper energy level and a lower energy level and the optical source comprises an excitation system which generates stimulated emission from a pump level to the upper energy level. Preferably, the optical source includes a Tm-doped fibre (6) in an optical cavity (1,8).

    摘要翻译: 光学相干断层摄影系统包括光源(1),其发射波长在1.6(m至2.0(m),特别是具有主要在1.8的波长的红外发射(m与上能量 优选地,光源包括在光学腔中的掺杂Tm的光纤(6)(1,8),所述激光系统将从泵浦电平产生受激发射到较高能量水平。 )。