公开(公告)号：US07879410B2

公开(公告)日：2011-02-01

申请号：US10863362

申请日：2004-06-09

Applicant: Yong Che ,  Zhendong Hu

Inventor： Yong Che ,  Zhendong Hu

IPC: H05H1/24

CPC classification number: C23C14/28 ,  C23C14/086 ,  H01M4/0426 ,  H01M6/40 ,  H01M10/0472 ,  H01M10/058

Abstract: A method of fabricating a multi-layered thin film electrochemical device is provided. The method comprises: providing a first target material in a chamber; providing a substrate in the chamber; emitting a first intermittent laser beam directed at the first target material to generate a first plasma, wherein each pulse of the first intermittent laser beam has a pulse duration of about 20 fs to about 500 ps; depositing the first plasma on the substrate to form a first thin film; providing a second target material in the chamber; emitting a second intermittent laser beam directed at the second target material to generate a second plasma, wherein each pulse of the second intermittent laser beam has a pulse duration of about 20 fs to about 500 ps; and depositing the second plasma on or above the first thin film to form a second thin film.

Abstract translation: 提供一种制造多层薄膜电化学装置的方法。 该方法包括：在室中提供第一目标材料; 在所述腔室中提供衬底; 发射指向第一目标材料的第一间歇激光束以产生第一等离子体，其中第一间歇激光束的每个脉冲具有约20fs至约500ps的脉冲持续时间; 将第一等离子体沉积在衬底上以形成第一薄膜; 在腔室中提供第二靶材料; 发射指向所述第二目标材料的第二间歇激光束以产生第二等离子体，其中所述第二间歇激光束的每个脉冲具有约20fs至约500ps的脉冲持续时间; 以及将第二等离子体沉积在第一薄膜上或上方以形成第二薄膜。

公开(公告)号：US20110020008A1

公开(公告)日：2011-01-27

申请号：US12838386

申请日：2010-07-16

Applicant: Liang Dong ,  Xiang Peng

Inventor： Liang Dong ,  Xiang Peng

IPC: H04B10/12 ,  G02B6/028

CPC classification number: G01N21/65 ,  C03B37/01205 ,  C03B37/01208 ,  C03B37/0122 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/42 ,  G01N21/774 ,  G01N2021/655 ,  G02B6/02238 ,  G02B6/023 ,  G02B6/02304 ,  G02B6/02328 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/4206

Abstract: Included among the many structures described herein are photonic bandgap fibers designed to provide a desired dispersion spectrum. Additionally, designs for achieving wide transmission bands and lower transmission loss are also discussed. For example, in some fiber designs, smaller dimensions of high index material in the cladding and large core size provide small flat dispersion over a wide spectral range. In other examples, the thickness of the high index ring-shaped region closest to the core has sufficiently large dimensions to provide negative dispersion or zero dispersion at a desired wavelength. Additionally, low index cladding features distributed along concentric rings or circles may be used for achieving wide bandgaps.

Abstract translation: 包括在本文所描述的许多结构之中的是设计成提供所需色散谱的光子带隙光纤。 此外，还讨论了用于实现宽传输频带和较低传输损耗的设计。 例如，在一些光纤设计中，包层中高折射率材料的较小尺寸和较大的芯体尺寸在较宽的光谱范围内提供较小的平坦色散。 在其他示例中，最靠近芯的高折射率环形区域的厚度具有足够大的尺寸以在期望的波长处提供负色散或零色散。 另外，沿着同心环或圆分布的低折射率包层特征可以用于实现宽带隙。

公开(公告)号：US20100265972A1

公开(公告)日：2010-10-21

申请号：US12825446

申请日：2010-06-29

Applicant: Ingmar HARTL ,  Martin E. FERMANN

Inventor： Ingmar HARTL ,  Martin E. FERMANN

IPC: H01S3/098

CPC classification number: H01S3/1112 ,  G02F1/3558 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2203/56 ,  H01S3/067 ,  H01S3/06716 ,  H01S3/10007 ,  H01S2301/02

Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.

Abstract translation: 基于锁模光纤激光器，光纤放大器和基于光纤的超宽带宽光源的频率标准及其应用。

公开(公告)号：US20100247046A1

公开(公告)日：2010-09-30

申请号：US12750559

申请日：2010-03-30

Applicant: Liang Dong ,  Brian K. Thomas ,  Shigeru Suzuki ,  Libin Fu

Inventor： Liang Dong ,  Brian K. Thomas ,  Shigeru Suzuki ,  Libin Fu

IPC: G02B6/02 ,  B29D11/00

CPC classification number: B29D11/00663 ,  G02B6/02328 ,  G02B6/02347 ,  G02B6/024

Abstract: Various embodiments described herein comprise hollow core (HC) photonic bandgap fibers (PBGF) with a square lattice (SQL). In various embodiments the, HC SQL PBGF includes a cladding region comprising 2-10 layers of air-holes. In various embodiments, the HC SQL PBGF can be configured to provide a relative wavelength transmission window Δλ/λc larger than about 0.35 and minimum transmission loss in a range from about 70 dB/km to about 0.1 dB/km. In some embodiments, the HC SQL PBGF fiber can be a polarization maintaining fiber. Methods of fabricating such fibers are also disclosed herein along with some examples of fabricated fibers. Various applications of such fibers are also described herein.

Abstract translation: 本文描述的各种实施例包括具有正方晶格（SQL）的空心芯（HC）光子带隙光纤（PBGF）。 在各种实施方案中，HC SQL PBGF包括包含2-10层气孔的包层区域。 在各种实施例中，HC SQL PBGF可以被配置为提供大于约0.35的相对波长传输窗口和Dgr;λ/λc，并且在约70dB / km至约0.1dB / km的范围内提供最小传输损耗。 在一些实施例中，HC SQL PBGF光纤可以是偏振保持光纤。 本文还公开了制造这种纤维的方法以及制造的纤维的一些实例。 这里也描述了这种纤维的各种应用。

公开(公告)号：US07782910B2

公开(公告)日：2010-08-24

申请号：US11109711

申请日：2005-04-20

Applicant: Martin Fermann ,  Donald J. Harter

Inventor： Martin Fermann ,  Donald J. Harter

IPC: H01S3/30

CPC classification number: H01S3/06708 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/094019 ,  H01S3/1118

Abstract: A novel polarization maintaining optical fiber, which can be used as a high-power polarization maintaining fiber laser or amplifier, is described. Insensitivity of the polarization state to external fiber bending and temperature changes is accomplished by minimizing polarization mode-coupling via reducing stresses inside the fiber core via increasing the fiber diameter. Alternatively, polarization mode-coupling can be minimized by an optimization of the fiber coating to minimize stresses at the interface between the fiber and the coating. As a result insensitivity to polarization mode-coupling is obtained at greatly reduced values of birefringence compared to small-diameter fibers. The fiber is of significant use in any application where polarization stability is important, and will be useful in telecommunications applications in particular for reducing polarization mode dispersion. An implementation in a parabolic pulse-producing fiber laser is also described as one specific high power example.

Abstract translation: 描述了可用作高功率偏振维持光纤激光器或放大器的新型偏振保持光纤。 极化状态对外部纤维弯曲和温度变化的不敏感性是通过通过增加纤维直径来减小纤维芯内的应力来最小化偏振模耦合来实现的。 或者，可以通过纤维涂层的优化来最小化极化模式耦合，以使纤维和涂层之间的界面处的应力最小化。 结果，与小直径纤维相比，在双折射值大大降低的情况下获得了偏振模耦合的不敏感性。 该光纤在极化稳定性很重要的任何应用中都是非常有用的，并且在电信应用中特别用于降低偏振模色散是有用的。 抛物线脉冲产生光纤激光器中的实现也被描述为一个特定的高功率示例。

公开(公告)号：US07742669B2

公开(公告)日：2010-06-22

申请号：US12017784

申请日：2008-01-22

Applicant: Liang Dong ,  Donald J. Harter

Inventor： Liang Dong ,  Donald J. Harter

IPC: G02B6/04

CPC classification number: G02B6/2551 ,  G02B6/2856 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/09408

Abstract: One or more single mode few-moded or multimode fibers are incorporated into a bundle to carry input to a fiber amplifier or output from a fiber amplifier or a fiber laser. The input is at the signal wavelength, which is the wavelength where amplification or lasing occurs. Each of the fibers in the bundle is cleaved individually or as a group and fiber ends are aligned in the same plane. The fiber amplifier or fiber laser may include a double clad fiber and the other fibers of the bundle couple light for cladding pumping. The device may also include a mode filter for controlling the output mode.

Abstract translation: 一个或多个单模多模或多模光纤被并入到束中以将输入传送到光纤放大器或从光纤放大器或光纤激光器输出。 输入信号波长为发生放大或激光的波长。 束中的每个纤维单独地或作为一组裂解，并且纤维末端在同一平面中对准。 光纤放大器或光纤激光器可以包括双包层光纤，并且束的其它光纤耦合光以进行包层泵浦。 该装置还可以包括用于控制输出模式的模式滤波器。

公开(公告)号：US20100084384A1

公开(公告)日：2010-04-08

申请号：US12580762

申请日：2009-10-16

Applicant: James BOVATSEK ,  Alan Y. Arai ,  Fumiyo Yoshino

Inventor： James BOVATSEK ,  Alan Y. Arai ,  Fumiyo Yoshino

IPC: B23K26/00

CPC classification number: B23K26/0057 ,  B23K26/0617 ,  B23K26/0624 ,  B23K26/244 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2103/50 ,  B28D5/0011 ,  B29C59/16 ,  B29C65/14 ,  B29C65/1616 ,  B29C65/1635 ,  B29C65/1638 ,  B29C65/1658 ,  B29C65/1664 ,  B29C65/1674 ,  B29C65/1696 ,  B29C65/38 ,  B29C66/1122 ,  B29C66/30223 ,  B29C66/322 ,  B29C66/3282 ,  B29C66/41 ,  B29C66/43 ,  B29C66/71 ,  B29C66/73366 ,  B29C66/7352 ,  B29C66/73921 ,  B29C66/836 ,  B29C66/91641 ,  B29C66/919 ,  B29C66/934 ,  B29C66/939 ,  B29C66/944 ,  B29C66/949 ,  B29K2033/12 ,  B29K2069/00 ,  B29K2995/0026 ,  B81B1/00 ,  B81C1/00119 ,  C03B23/20 ,  C03B23/203 ,  C03B33/0222 ,  C03C23/0025 ,  Y10T428/13 ,  Y10T428/15 ,  Y10T428/24479 ,  Y10T428/24802 ,  B29C65/00

Abstract: Methods for ultrashort pulse laser processing of optically transparent materials. A method for scribing transparent materials uses ultrashort laser pulses to create multiple scribe features with a single pass of the laser beam across the material, with at least one of the scribe features being formed below the surface of the material. This enables clean breaking of transparent materials at a higher speed than conventional techniques. Slightly modifying the ultrashort pulse laser processing conditions produces sub-surface marks. When properly arranged, these marks are clearly visible with side-illumination and not clearly visible without side-illumination. In addition, a method for welding transparent materials uses ultrashort laser pulses to create a bond through localized heating. The ultrashort pulse duration causes nonlinear absorption of the laser radiation, and the high repetition rate of the laser causes pulse-to-pulse accumulation of heat within the materials. The laser is focused near the interface of the materials, generating a high energy fluence at the region to be welded. This minimizes damage to the rest of the material and enables fine weld lines.

Abstract translation: 光学透明材料的超短脉冲激光加工方法。 用于划线透明材料的方法使用超短激光脉冲来产生多个划线特征，其中激光束通过该材料的单次通过，其中至少一个划线特征形成在材料表面下方。 这样可以以比传统技术更高的速度清洁透明材料。 稍微修改超短脉冲激光加工条件会产生次表面痕迹。 当正确布置时，这些标记在侧面照明下清晰可见，并且在没有侧面照明的情况下不清晰可见。 此外，用于焊接透明材料的方法使用超短激光脉冲通过局部加热产生粘结。 超短脉冲持续时间导致激光辐射的非线性吸收，并且激光器的高重复率导致材料内的脉冲 - 脉冲积累的热量。 激光聚焦在材料界面附近，在待焊接的区域产生高能量通量。 这可以最大限度地减少对其余材料的损坏，并能实现细焊缝。

公开(公告)号：US07684450B2

公开(公告)日：2010-03-23

申请号：US11314197

申请日：2005-12-20

Applicant: Lawrence Shah

Inventor： Lawrence Shah

IPC: H01S3/10

CPC classification number: H01S3/0057 ,  B23K26/0624 ,  G02B6/02138 ,  G02B6/02142 ,  G02B6/02147 ,  G02B6/13

Abstract: Various embodiments described herein relate to a laser source for producing a pulsed laser beam comprising a plurality of ultrashort optical pulses having a variable repetition rate. In one embodiment, the laser source comprises a fiber oscillator, which outputs optical pulses and a pulse stretcher disposed to receive the optical pulses. The optical pulses have an optical pulse width. The pulse stretcher has dispersion that increases the optical pulse width yielding stretched optical pulses. The laser source further comprises a fiber amplifier disposed to receive the stretched optical pulses. The fiber optical amplifier has gain so as to amplify the stretched optical pulses. The laser source includes an automatically adjustable grating compressor having dispersion that reduces the optical pulse width. The grating compressor automatically adjusts this dispersion for different repetition rates.

Abstract translation: 本文描述的各种实施例涉及用于产生脉冲激光束的激光源，其包括具有可变重复率的多个超短光脉冲。 在一个实施例中，激光源包括输出光脉冲的光纤振荡器和布置成接收光脉冲的脉冲展宽器。 光脉冲具有光脉冲宽度。 脉冲展宽器具有增加产生拉伸光脉冲的光脉冲宽度的色散。 激光源还包括光纤放大器，用于接收延伸的光脉冲。 光纤放大器具有增益以便放大拉伸的光脉冲。 激光源包括具有降低光脉冲宽度的色散的自动调节光栅压缩器。 光栅压缩机自动调整不同重复率的色散。

公开(公告)号：US07656578B2

公开(公告)日：2010-02-02

申请号：US11372185

申请日：2006-03-10

Applicant: Almantas Galvanauskas ,  Donald J. Harter ,  Martin E. Fermann ,  Ferenc Raksi

Inventor： Almantas Galvanauskas ,  Donald J. Harter ,  Martin E. Fermann ,  Ferenc Raksi

IPC: H01S3/00

CPC classification number: H01S3/115 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/06754 ,  H01S3/08031 ,  H01S3/094007 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1673

Abstract: The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.

Abstract translation: 本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。 通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。 通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。 近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。 此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。 公开了用于标记，微加工和钻孔领域的应用。

公开(公告)号：US20100000466A1

公开(公告)日：2010-01-07

申请号：US12558038

申请日：2009-09-11

Applicant: Bing LIU ,  Zhendong Hu ,  Yong Che ,  Yuzuru Uehara

Inventor： Bing LIU ,  Zhendong Hu ,  Yong Che ,  Yuzuru Uehara

IPC: H01L21/465

CPC classification number: C23C14/22 ,  C23C14/083 ,  C23C14/28

Abstract: A p-type semiconductor zinc oxide (ZnO) film and a process for preparing the film are disclosed. The film is co-doped with phosphorous (P) and lithium (Li). A pulsed laser deposition scheme is described for use in growing the film. Further described is a process of pulsed laser deposition using transparent substrates which includes a pulsed laser source, a substrate that is transparent at the wavelength of the pulsed laser, and a multi-target system. The optical path of the pulsed laser is arranged in such a way that the pulsed laser is incident from the back of the substrate, passes through the substrate, and then focuses on the target. By translating the substrate towards the target, this geometric arrangement enables deposition of small features utilizing the root of the ablation plume, which can exist in a one-dimensional transition stage along the target surface normal, before the angular width of the plume is broadened by three-dimensional adiabatic expansion. This can provide small deposition feature sizes, which can be similar in size to the laser focal spot, and provides a novel method for direct deposition of patterned materials.

Abstract translation: 公开了一种p型半导体氧化锌（ZnO）膜及其制备方法。 该膜与磷（P）和锂（Li）共掺杂。 描述脉冲激光沉积方案用于生长膜。 进一步描述的是使用透明衬底的脉冲激光沉积过程，其包括脉冲激光源，在脉冲激光的波长处是透明的衬底和多目标系统。 脉冲激光器的光路布置成使得脉冲激光从衬底的背面入射，穿过衬底，然后聚焦在靶上。 通过将基板朝向目标平移，这种几何布置可以在羽流的角宽度扩大之前利用消融羽流的根部沉积小特征，其可以沿着目标表面法线存在于一维过渡阶段中 三维绝热膨胀。 这可以提供小的沉积特征尺寸，其尺寸可以与激光焦点类似，并且提供用于直接沉积图案化材料的新颖方法。