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    Frequency comb source with large comb spacing
    131.
    发明授权
    Frequency comb source with large comb spacing 有权
    频梳梳具有较大的梳齿间距

    公开(公告)号：US08571075B2

    公开(公告)日：2013-10-29

    申请号：US12955759

    申请日：2010-11-29

    Applicant: Martin Fermann ,  Ingmar Hartl

    Inventor： Martin Fermann ,  Ingmar Hartl

    IPC: H01S3/30 ,  H01S3/098

    CPC classification number: G02F1/365 ,  G01J3/10 ,  G02F2001/3528 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/08054 ,  H01S3/0809 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1618

    Abstract: A frequency comb laser providing large comb spacing is disclosed. At least one embodiment includes a mode locked waveguide laser system. The mode locked waveguide laser includes a laser cavity having a waveguide, and a dispersion control unit (DCU) in the cavity. The DCU imparts an angular dispersion, group-velocity dispersion (GVD) and a spatial chirp to a beam propagating in the cavity. The DCU is capable of producing net GVD in a range from a positive value to a negative value. In some embodiments a tunable fiber frequency comb system configured as an optical frequency synthesizer is provided. In at least one embodiment a low phase noise micro-wave source may be implemented with a fiber comb laser having a comb spacing greater than about 1 GHz. The laser system is suitable for mass-producible fiber comb sources with large comb spacing and low noise. Applications include high-resolution spectroscopy.

    Abstract translation: 公开了一种提供较大梳形间距的频率梳状激光器。 至少一个实施例包括模式锁定波导激光系统。 模式锁定波导激光器包括具有波导的激光腔和空腔中的色散控制单元（DCU）。 DCU向在腔中传播的光束赋予角度色散，群速度色散（GVD）和空间啁啾声。 DCU能够在从正值到负值的范围内产生净GVD。 在一些实施例中，提供了被配置为光频合成器的可调光纤频率梳状系统。 在至少一个实施例中，低相位噪声微波源可以用具有大于约1GHz的梳齿间隔的光纤梳状激光器来实现。 激光系统适用于具有大梳齿间隔和低噪音的大规模生产的光纤梳状光源。 应用包括高分辨率光谱。

    High power short pulse fiber laser
    133.
    发明授权
    High power short pulse fiber laser 有权
    大功率短脉冲光纤激光器

    公开(公告)号：US08537864B2

    公开(公告)日：2013-09-17

    申请号：US12814628

    申请日：2010-06-14

    Applicant: Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho

    Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho

    IPC: H01S3/30

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

    Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs.

    Abstract translation: 脉冲激光器包括振荡器和放大器。 衰减器和/或预压缩器可以设置在振荡器和放大器之间以提高性能以及可能的从激光器输出的脉冲的质量。 这种预压缩可以用振荡器和放大器之间的频谱滤波器和/或分散元件来实现。 脉冲激光器可以具有包括可能具有Telcordia分级质量和可靠性的模块化设备的模块化设计。 从设备模块延伸的光纤尾纤可以拼接在一起形成激光系统。 在一个实施例中，在大约1050nm操作的激光系统包括具有约19nm的光谱带宽的振荡器。 该振荡器信号可被操纵以产生宽度低于大约90fs的脉冲。

    APPARATUS FOR HIGH CONTRAST OPTICAL SIGNALING, AND EXEMPLARY APPLICATIONS
    136.
    发明申请
    APPARATUS FOR HIGH CONTRAST OPTICAL SIGNALING, AND EXEMPLARY APPLICATIONS 有权
    高对比度光信号的设备和示例应用

    公开(公告)号：US20130093581A1

    公开(公告)日：2013-04-18

    申请号：US13648484

    申请日：2012-10-10

    Applicant: IMRA AMERICA, Inc.

    Inventor： Alan Y. ARAI

    IPC: B60Q1/00

    CPC classification number: B60R1/1207 ,  B60Q1/00 ,  B60R2001/1215 ,  G09G2380/06 ,  G09G2380/10

    Abstract: A display apparatus generates a high visibility optical signal, such as an ICON, the ICON comprising a symbol, shape, or other image-like representation. The ICON becomes visible at an observation point during an illumination ON-state. The ICON may be formed as a portion of display medium, for example as a machined portion of a mirror capable of forming images of a scene by reflection in normal operation. The visibility of the ICON in the illumination OFF-state from an observation point is sufficiently low such that the normal operation of the display medium is maintained. The display apparatus may be used in a blind spot warning system for a vehicle. Visible wavelength LEDs, RGB LEDs and/or diode lasers may be utilized as an illumination source. Ultrashort laser processing or other methods for material modification may be utilized to form microscopic features which distribute incident light, increasing the visibility of the optical signal at an observation point in an ON-state, with very low visibility in the OFF-state and minimal effect on the image in the display medium in the OFF state.

    Abstract translation: 显示装置产生诸如ICON的高可见度光信号，ICON包括符号，形状或其他图像样表示。 ICON在照明ON状态的观察点变得可见。 ICON可以形成为显示介质的一部分，例如作为能够在正常操作中通过反射来形成场景的图像的镜子的加工部分。 ICON在观察点的照明截止状态下的可见度足够低，从而维持显示介质的正常操作。 显示装置可以用于车辆的盲点警告系统。 可见波长LED，RGB LED和/或二极管激光器可用作照明源。 可以使用超短激光加工或其他材料修饰方法来形成分布入射光的微观特征，在ON状态的观察点增加光信号的可视性，在OFF状态下具有非常低的可见度和最小的影响 在显示介质中的图像处于OFF状态。

    Non-vacuum method for fabrication of a photovoltaic absorber layer
    137.
    发明授权
    Non-vacuum method for fabrication of a photovoltaic absorber layer 失效
    用于制造光伏吸收层的非真空方法

    公开(公告)号：US08409906B2

    公开(公告)日：2013-04-02

    申请号：US12910929

    申请日：2010-10-25

    Applicant: Wei Guo ,  Yu Jin ,  Bing Liu ,  Yong Che

    Inventor： Wei Guo ,  Yu Jin ,  Bing Liu ,  Yong Che

    IPC: H01L21/00

    CPC classification number: H01L31/0322 ,  B82Y30/00 ,  C25D13/02 ,  H01L31/0749 ,  Y02E10/541

    Abstract: The present invention provides a non-vacuum method of depositing a photovoltaic absorber layer based on electrophoretic deposition of a mixture of nanoparticles with a controlled atomic ratio between the elements. The nanoparticles are first dispersed in a liquid medium to form a colloidal suspension and then electrophoretically deposited onto a substrate to form a thin film photovoltaic absorber layer. The absorber layer may be subjected to optional post-deposition treatments for photovoltaic absorption.

    Abstract translation: 本发明提供了一种非真空方法，其基于在元件之间具有受控原子比的纳米颗粒的混合物的电泳沉积来沉积光伏吸收层。 首先将纳米颗粒分散在液体介质中以形成胶体悬浮液，然后电泳沉积到基底上以形成薄膜光伏吸收层。 可以对吸收层进行用于光伏吸收的任选的后沉积处理。

    MULTI-CLAD OPTICAL FIBERS
    139.
    发明申请
    MULTI-CLAD OPTICAL FIBERS 有权
    多光纤光纤

    公开(公告)号：US20120257271A1

    公开(公告)日：2012-10-11

    申请号：US13493199

    申请日：2012-06-11

    Applicant: Liang Dong ,  Hugh McKay

    Inventor： Liang Dong ,  Hugh McKay

    IPC: H01S3/067 ,  G02B6/036

    CPC classification number: H01S3/06754 ,  C03C25/104 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/024 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/094007

    Abstract: Multi-clad optical fibers and fiber amplifiers are disclosed. Various embodiments include multi-clad, large core fiber amplifiers. In various implementations mixing of pump modes is enhanced relative to that obtainable with conventional double-clad fibers. In some embodiments end terminations are provided with increased length of end-cap fiber. In at least one embodiment a multi-clad fiber is provided, with a pump cladding formed by stacking a layer of low index rods in the preform. Various embodiments include a multi-clad fiber amplifier system. The system includes a pump source to pump said fiber amplifier. The system also includes an optical fiber having a core and a cladding, wherein the cladding includes a pump cladding having a corrugated boundary. In various embodiments the pump cladding is formed by rods in a preform, which are disposed to mix the pump modes and/or scatter or reflect pump energy into the core.

    Abstract translation: 公开了多包层光纤和光纤放大器。 各种实施例包括多包层大芯光纤放大器。 在各种实施方案中，相对于使用常规双包层光纤可获得的泵模式的混合增强。 在一些实施方案中，末端终端具有增加的端帽纤维长度。 在至少一个实施例中，提供了多包层光纤，其中通过在预成型件中堆叠一层低折射率棒而形成泵浦覆层。 各种实施例包括多包层光纤放大器系统。 该系统包括用于泵浦所述光纤放大器的泵浦源。 该系统还包括具有芯和包层的光纤，其中包层包括具有波纹边界的泵浦覆层。 在各种实施例中，泵包层由预成型件中的杆形成，其被设置成混合泵模式和/或将泵浦能量分散或反射到芯中。

    Ultra high numerical aperture optical fibers
    140.
    发明授权
    Ultra high numerical aperture optical fibers 有权
    超高数值孔径光纤

    公开(公告)号：US08285100B2

    公开(公告)日：2012-10-09

    申请号：US13215585

    申请日：2011-08-23

    Applicant: Liang Dong ,  Xiang Peng ,  Brian K. Thomas

    Inventor： Liang Dong ,  Xiang Peng ,  Brian K. Thomas

    IPC: G02B6/00 ,  G02B6/02 ,  G02B6/32

    CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/0124 ,  C03B37/01254 ,  C03B37/0126 ,  C03B37/018 ,  C03B2203/14 ,  C03B2203/30 ,  G02B6/02261 ,  G02B6/02333 ,  G02B6/02366 ,  G02B6/03644

    Abstract: Various embodiments described include optical fiber designs and fabrication processes for ultra high numerical aperture optical fibers (UHNAF) having a numerical aperture (NA) of about 1. Various embodiments of UHNAF may have an NA greater than about 0.7, greater than about 0.8, greater than about 0.9, or greater than about 0.95. Embodiments of UHNAF may have a small core diameter and may have low transmission loss. Embodiments of UHNAF having a sufficiently small core diameter provide single mode operation. Some embodiments have a low V number, for example, less than 2.4 and large dispersion. Some embodiments of UHNAF have extremely large negative dispersion, for example, less than about −300 ps/nm/km in some embodiments. Systems and apparatus using UHNAF are also disclosed.

    Abstract translation: 所描述的各种实施例包括具有大约1的数值孔径（NA）的超高数值孔径光纤（UHNAF）的光纤设计和制造工艺。UHNAF的各种实施例可以具有大于约0.7，大于约0.8的NA 大于约0.9，或大于约0.95。 UHNAF的实施例可以具有小的芯直径并且可能具有低的传输损耗。 具有足够小的芯直径的UHNAF的实施例提供单模操作。 一些实施例具有低V数，例如小于2.4和大分散。 UHNAF的一些实施方案在一些实施方案中具有非常大的负色散，例如小于约-300ps / nm / km。 还公开了使用UHNAF的系统和装置。

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