专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070053400A1 Mitigation of photodarkening to achieve laser oscillation and amplification with highly doped fibers 失效
标题翻译：减轻光暗化实现激光振荡和高掺杂光纤放大
公开(公告)号：US20070053400A1
公开(公告)日：2007-03-08
申请号：US11508550
申请日：2006-08-22
申请人： Supriyo Sinha , Michel Digonnet , Robert Byer , Jens Limpert
发明人： Supriyo Sinha , Michel Digonnet , Robert Byer , Jens Limpert
IPC分类号： H01S3/03
CPC分类号： H01S3/0675 , H01S3/06716 , H01S3/06791 , H01S3/07 , H01S3/094003 , H01S3/094011 , H01S3/1055
摘要： Photodarkening in active fiber or waveguide devices (e.g. lasers, amplifiers, and incoherent sources such as ASE sources) can be reduced by altering the dopant concentration along the length of the doped fiber. A fiber or waveguide device includes two or more intentionally doped fiber or waveguide sections having different concentrations of one or more dopants. The dopants provide optical gain responsive to pump radiation provided to the fiber device by a pump source. A first optical intensity in a first of the fiber or waveguide sections is greater than a second optical intensity in a second of the fiber or waveguide sections. A first dopant concentration in the first fiber or waveguide section is lower than a second dopant concentration in the second fiber or waveguide section. Thus the dopant concentration is reduced in sections of the fiber or waveguide device having a higher optical intensity. The optical intensity can be due to pump radiation and/or signal radiation. Reduced dopant concentration in regions of high optical intensity reduces photodarkening.
摘要翻译：通过改变沿着掺杂光纤的长度的掺杂剂浓度，可以减少有源光纤或波导器件（例如，激光器，放大器和非相干源，例如ASE源）中的光标。光纤或波导器件包括具有不同浓度的一种或多种掺杂剂的两个或更多个有意掺杂的光纤或波导部分。掺杂剂通过泵浦源提供响应于提供给光纤装置的泵浦辐射的光学增益。第一光纤或波导部分中的第一光强度大于第二光纤或波导部分中的第二光强度。第一光纤或波导部分中的第一掺杂剂浓度低于第二光纤或波导部分中的第二掺杂剂浓度。因此，具有较高光强度的光纤或波导器件的部分的掺杂剂浓度降低。光强度可能是由于泵浦辐射和/或信号辐射。高光强度区域的掺杂剂浓度降低会降低光暗化。

2. 发明申请

US20060290943A1 High precision interferometer apparatus employing a grating beamsplitter 失效
标题翻译：采用光栅分光镜的高精度干涉仪
公开(公告)号：US20060290943A1
公开(公告)日：2006-12-28
申请号：US11429651
申请日：2006-05-05
申请人： Ke-Xun Sun , Graham Allen , Robert Byer
发明人： Ke-Xun Sun , Graham Allen , Robert Byer
IPC分类号： G01B11/02
CPC分类号： G01B9/02056 , G01B9/02021 , G01B9/02027 , G01B9/02057 , G01B2290/10 , G01B2290/30
摘要： Measurement of a distance change between a reference surface and a target is provided. A substrate has a first surface facing the target and including a grating. The grating and target combine to form an optical interferometer responsive to changes in distance between the grating and the target. A second surface of the substrate coincides with the reference surface and faces away from the target. Thickness information pertaining to the substrate is combined with results from the optical interferometer to provide a measurement of distance change between reference surface and target. The substrate is preferably a rigid material having picometer level dimensional stability.
摘要翻译：提供了参考表面和目标之间的距离变化的测量。衬底具有面向靶并且包括光栅的第一表面。光栅和目标组合形成光学干涉仪，响应于光栅与目标之间的距离变化。基板的第二表面与参考表面重合，并远离目标。将与衬底相关的厚度信息与来自光学干涉仪的结果相结合，以提供参考表面和目标之间的距离变化的测量。基底优选是具有皮秒级尺寸稳定性的刚性材料。

3. 发明申请

US20050090030A1 Method for fabricating zig-zag slabs for solid state lasers 失效
标题翻译：制造固态激光器的之字形板的方法
公开(公告)号：US20050090030A1
公开(公告)日：2005-04-28
申请号：US10696278
申请日：2003-10-28
申请人： Arun Sridharan , Shailendhar Saraf , Robert Byer
发明人： Arun Sridharan , Shailendhar Saraf , Robert Byer
IPC分类号： H01S3/06 , H01S3/081 , H01L21/00
CPC分类号： H01S3/0606 , H01S3/0612 , H01S3/0623 , H01S3/0625 , H01S3/08095 , H01S2301/02
摘要： A method for batch manufacturing of slabs for zig-zag lasers including steps of bonding two non-active media to either side of an active medium to form a sandwich, dicing the sandwich to provide slices, rendering two surfaces of each slice into total-internal-reflection (TIR) surfaces, and then dicing the slices perpendicular to the TIR surfaces to provide a plurality of zig-zag slabs.
摘要翻译：一种用于批量制造锯齿形激光器的板坯的方法，包括将两个非活性介质粘合到活性介质的任一侧以形成夹层的步骤，切割夹层以提供切片，使每个切片的两个表面成为全内 - 反射（TIR）表面，然后将切片垂直于TIR表面切割以提供多个之字形板。

4. 发明授权

US06480325B1 Laser light source and image display based on quasi-phasematched nonlinear optical devices 失效
标题翻译：基于准非对称非线性光学器件的激光光源和图像显示
公开(公告)号：US06480325B1
公开(公告)日：2002-11-12
申请号：US09578994
申请日：2000-05-25
申请人： Robert Batchko , Robert Byer , Uwe Kurt Bader , Jan-Peter Meyn
发明人： Robert Batchko , Robert Byer , Uwe Kurt Bader , Jan-Peter Meyn
IPC分类号： G02F139
CPC分类号： G02F1/3532 , G02F1/3534 , G02F1/37 , G02F1/39 , H01S3/109
摘要： An apparatus for generating three or more optical signals. The apparatus generally comprises a coherent source, an optical parametric generation device and a sum frequency generator. The coherent source generates a first optical signal having a first free-space wavelength. The optical parametric generation device interacts the first optical signal to produce an idler signal and a second optical signal having a second free-space wavelength while transmitting a portion of the first optical signal to the sum frequency generator. The sum frequency generator non-linearly combines part of the second portion of the first optical signal with the idler signal to produce a third optical signal characterized by a third free-space wavelength. The first, second, and third optical signals may comprise collinear red green and blue beams that may be modulated and scanned to produce an image. Furthermore, the optical parametric generation device and the sum frequency generator may be fabricated as a single monolithic device.
摘要翻译：一种用于产生三个或更多个光信号的装置。该装置通常包括相干源，光参量发生装置和和频发生器。相干源产生具有第一自由空间波长的第一光信号。光参量发生装置将第一光信号相互作用以产生空载信号和具有第二自由空间波长的第二光信号，同时将第一光信号的一部分传送到和频发生器。和频率发生器将第一光信号的第二部分的一部分与惰轮信号非线性组合，以产生由第三自由空间波长表征的第三光信号。第一，第二和第三光信号可以包括可以调制和扫描以产生图像的共线红绿和蓝光束。此外，光学参数产生装置和和频发生器可以制造为单个单片装置。

5. 发明申请

US20080043397A1 Charge management of electrically isolated objects via modulated photoelectric charge transfer 失效
标题翻译：通过调制光电电荷转移对电隔离物体进行充电管理
公开(公告)号：US20080043397A1
公开(公告)日：2008-02-21
申请号：US11809553
申请日：2007-06-01
申请人： Ke-Xun Sun , Brett Allard , Robert Byer , Saps Buchman
发明人： Ke-Xun Sun , Brett Allard , Robert Byer , Saps Buchman
IPC分类号： H05F3/02
CPC分类号： G01V7/04
摘要： Charge transfer is provided to or from an electrically isolated test body by AC modulation of the photoelectric effect. More specifically, a reference body is disposed near the test body without physical contact between the reference and test bodies. Facing surfaces of the reference and test bodies are illuminated by optical radiation having a sufficiently short wavelength that charged particles are emitted from the reference and test bodies. An electrical bias is established between the reference body and the test body. Both the optical radiation and the electrical bias are modulated at the same frequency. A magnitude and direction of a charge transfer rate between the reference and test bodies is set by selecting a phase relation between the optical radiation and the electrical bias.
摘要翻译：通过光电效应的AC调制，向电隔离的测试体提供电荷转移。更具体地，参考体设置在测试体附近，而没有参考体和测试体之间的物理接触。参考和测试体的面对表面被具有足够短的波长的光辐射照射，带电粒子从参考和测试体发射。在参考体和测试体之间建立电偏压。光辐射和电偏压都以相同的频率进行调制。通过选择光辐射和电偏压之间的相位关系来设定参考体和测试体之间的电荷转移速率的大小和方向。

6. 发明申请

US20080002197A1 Grating angle magnification enhanced angular sensor and scanner 失效
标题翻译：光栅角度放大增强角度传感器和扫描仪
公开(公告)号：US20080002197A1
公开(公告)日：2008-01-03
申请号：US11820720
申请日：2007-06-19
申请人： Ke-Xun Sun , Robert Byer
发明人： Ke-Xun Sun , Robert Byer
IPC分类号： G01B11/26
CPC分类号： G01B11/26
摘要： An angular magnification effect of diffraction is exploited to provide improved sensing and scanning. This effect is most pronounced for a normal or near-normal incidence angle in combination with a grazing diffraction angle, so such configurations are preferred. Angular sensitivity can be further enhanced because the width of the diffracted beam can be substantially less than the width of the incident beam. Normal incidence configurations with two symmetric diffracted beams are preferred, since rotation and vertical displacement can be readily distinguished. Increased sensitivity to vertical displacement can be provided by incorporating an interferometer into the measurement system. Quad cell detectors can be employed to provide sensitivity to rotation about the grating surface normal. A 2-D grating can be employed to provide sensitivity to angular displacements in two different planes (e.g., pitch and yaw). Combined systems can provide sensitivity to vertical displacement and to all three angular degrees of freedom.
摘要翻译：利用衍射的角放大效应来提供改进的感测和扫描。这种效果对于与放牧衍射角的组合的正常或接近正常入射角最为明显，因此优选这样的构型。角度灵敏度可以进一步提高，因为衍射光束的宽度可以基本上小于入射光束的宽度。具有两个对称衍射光束的正常入射配置是优选的，因为可以容易地区分旋转和垂直位移。通过将干涉仪结合到测量系统中可以提高对垂直位移的敏感度。可以采用四通道检测器来提供围绕光栅表面正常旋转的灵敏度。可以使用2-D光栅来提供对两个不同平面（例如俯仰和偏航）中的角位移的灵敏度。组合系统可以提供垂直位移和所有三个角度自由度的灵敏度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式