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1. 发明申请

US20060093265A1 Ultrafast laser machining system and method for forming diffractive structures in optical fibers 失效
$Ultrafast laser machining system and method for forming diffractive structures in optical fibers$
标题翻译：超快激光加工系统及在光纤中形成衍射结构的方法
公开(公告)号：US20060093265A1
公开(公告)日：2006-05-04
申请号：US11213412
申请日：2005-08-26
申请人： Jimmy Jia , Ming Li , Rajminder Singh , Xinbing Liu , Tetsuo Ohara
发明人： Jimmy Jia , Ming Li , Rajminder Singh , Xinbing Liu , Tetsuo Ohara
IPC分类号： G02B6/34
CPC分类号： B23K26/04 , B23K26/03 , B23K26/032 , B23K26/043 , B23K26/0624 , B23K26/0665 , B23K26/0823 , B23K26/083 , G02B6/02123
摘要： An ultrafast laser machining system and method to form diffractive structures in optical fibers. The fiber is mounted with its longitudinal axis perpendicular to the beam path of the laser pulses. A region of the fiber is illuminated and then imaged with two cameras. These cameras are aligned substantially orthogonally. A position of the beam spot is determined. The beam spot is aligned to a starting position within the region. This position is within a portion of the fiber to be machined for which the beam path passes through the greatest length of material. The beam spot is scanned along a path designed to pass the beam spot through all of the portion to be machined such that the beam path does not pass through previously machined material. The laser pulses, which have a duration of less than about ins, are generated as the beam spot is scanned.
摘要翻译：一种用于在光纤中形成衍射结构的超快速激光加工系统和方法。光纤安装成其纵轴垂直于激光脉冲的光束路径。光纤的一个区域被照亮，然后用两个相机成像。这些相机基本正交对准。确定束斑的位置。束斑与该区域内的起始位置对准。该位置在待加工的纤维的一部分内，光束路径通过其中最长的材料长度。光束点沿着设计成使光束点通过所有被加工部分的路径被扫描，使得光束路径不通过预先加工的材料。当扫描光束点时，产生具有小于约ins的持续时间的激光脉冲。

2. 发明授权

US06951627B2 Method of drilling holes with precision laser micromachining 有权
标题翻译：用精密激光微加工钻孔的方法
公开(公告)号：US06951627B2
公开(公告)日：2005-10-04
申请号：US10329036
申请日：2002-12-24
申请人： Ming Li , Makoto Ishizuka , Xinbing Liu
发明人： Ming Li , Makoto Ishizuka , Xinbing Liu
IPC分类号： B23K26/00 , B23K26/04 , B23K26/06 , B23K26/38 , B23K26/03
CPC分类号： B23K26/066 , B23K26/04 , B23K26/043 , B23K26/382 , B23K26/40 , B23K2103/50
摘要： The invention is an apparatus and a method for drilling holes in a work piece with a laser. A laser beam is received by the optical system and directed along an optical path. The system directs the laser beam through a moveable mask aperture creating a sub-beam, that is reduced in size by a lens system as it is imaged onto a work piece. Multiple features are formed in the work piece by moving the mask.
摘要翻译：本发明是用于在具有激光的工件上钻孔的装置和方法。激光束被光学系统接收并沿着光路引导。系统将激光束引导通过可移动的掩模孔，产生子光束，当透镜系统被成像到工件上时，其被减小。通过移动掩模在工件中形成多个特征。

3. 发明授权

US06819837B2 Method of temporarily adjusting the index of refraction of ring resonator with precision laser micromachining 失效
$Method of temporarily adjusting the index of refraction of ring resonator with precision laser micromachining$
标题翻译：利用精密激光微加工临时调整环形谐振器的折射率的方法
公开(公告)号：US06819837B2
公开(公告)日：2004-11-16
申请号：US10396030
申请日：2003-03-25
申请人： Ming Li , Daniel Hogan , Xinbing Liu , Makoto Ishizuka
发明人： Ming Li , Daniel Hogan , Xinbing Liu , Makoto Ishizuka
IPC分类号： G02B626
CPC分类号： G02B6/12007
摘要： A tuned optical resonator having a substrate and an input waveguide and an optical resonator waveguide formed on the substrate. The optical resonator waveguide has a resonant frequency, exhibits a first index of refraction, temporarily exhibits a second index of refraction responsive to application of laser energy, and temporarily resonates at the resonant frequency while the laser energy is being applied.
摘要翻译：一种调谐光学谐振器，其具有基板和形成在基板上的输入波导和光学谐振波导。光谐振器波导具有谐振频率，呈现第一折射率，响应于施加激光能量暂时呈现第二折射率，并且在施加激光能量时暂时谐振在谐振频率。

4. 发明授权

US06570122B2 Apparatus for drilling holes with sub-wavelength pitch with laser 失效
公开(公告)号：US06570122B2
公开(公告)日：2003-05-27
申请号：US10038330
申请日：2002-01-03
申请人： Xinbing Liu , Ming Li
发明人： Xinbing Liu , Ming Li
IPC分类号： B23K2638
CPC分类号： B23K26/0624 , B23K26/382 , B23K26/40 , B23K2103/16 , B23K2103/50 , B82Y20/00 , G02B6/1225
摘要： A method of laser machining using an ultra-fast pulse laser is presented. According to the present invention a plurality of holes with a pitch less than the wavelength of the laser are drilled into a material sample. Reliable and reproducible hole drilling is accomplished through an exemplary drilling sequence which applies a number of pulses at a first pulse energy to the surface spaced to avoid laser hardening of the surface for adjacent holes of a first set of holes. Next, the number of pulses is increased or the energy of the laser beam is increased to drill holes that are interstitial to the first set of holes. The exemplary laser machining process may used to produce both one-dimensional and two-dimensional photonic crystals, among other applications.

5. 发明授权

US07366378B2 Ultrafast laser machining system and method for forming diffractive structures in optical fibers 失效
$Ultrafast laser machining system and method for forming diffractive structures in optical fibers$
标题翻译：超快激光加工系统及在光纤中形成衍射结构的方法
公开(公告)号：US07366378B2
公开(公告)日：2008-04-29
申请号：US11213412
申请日：2005-08-26
申请人： Jimmy Yi-Jie Jia , Ming Li , Rajminder Singh , Xinbing Liu , Tetsuo Ohara
发明人： Jimmy Yi-Jie Jia , Ming Li , Rajminder Singh , Xinbing Liu , Tetsuo Ohara
IPC分类号： G02B6/34
CPC分类号： B23K26/04 , B23K26/03 , B23K26/032 , B23K26/043 , B23K26/0624 , B23K26/0665 , B23K26/0823 , B23K26/083 , G02B6/02123
摘要： An ultrafast laser machining system and method to form diffractive structures in optical fibers. The fiber is mounted with its longitudinal axis perpendicular to the beam path of the laser pulses. A region of the fiber is illuminated and then imaged with two cameras. These cameras are aligned substantially orthogonally. A position of the beam spot is determined. The beam spot is aligned to a starting position within the region. This position is within a portion of the fiber to be machined for which the beam path passes through the greatest length of material. The beam spot is scanned along a path designed to pass the beam spot through all of the portion to be machined such that the beam path does not pass through previously machined material. The laser pulses, which have a duration of less than about 1 ns, are generated as the beam spot is scanned.
摘要翻译：一种用于在光纤中形成衍射结构的超快速激光加工系统和方法。光纤安装成其纵轴垂直于激光脉冲的光束路径。光纤的一个区域被照亮，然后用两个相机成像。这些相机基本正交对准。确定束斑的位置。束斑与该区域内的起始位置对准。该位置在待加工的纤维的一部分内，光束路径通过其中最长的材料长度。光束点沿着设计成使光束点通过所有被加工部分的路径被扫描，使得光束路径不通过预先加工的材料。当扫描光束点时，产生持续时间小于约1ns的激光脉冲。

6. 发明申请

US20070026676A1 Via hole machining for microwave monolithic integrated circuits 有权
标题翻译：微波单片集成电路的通孔加工
公开(公告)号：US20070026676A1
公开(公告)日：2007-02-01
申请号：US11194419
申请日：2005-08-01
申请人： Ming Li , Xinbing Liu , Hiroyuki Sakai , Masaaki Nishijima , Daisuke Ueda
发明人： Ming Li , Xinbing Liu , Hiroyuki Sakai , Masaaki Nishijima , Daisuke Ueda
IPC分类号： H01L21/302
CPC分类号： B23K26/0624 , B23K26/40 , B23K2103/50
摘要： A method for forming a via in a sapphire substrate with a laser machining system that includes an ultrafast pulsed laser source. The sapphire substrate is provided. Pulses of laser light are substantially focused to a beam spot on the first surface of the sapphire substrate such that each focused pulse of laser light ablates a volume of the sapphire substrate having a depth less than the substrate thickness. The beam spot of the focused laser light pulses is scanned over a via portion of the first surface of the sapphire substrate. The sapphire substrate is moved in a direction substantially normal to the first surface to control the volume of the sapphire substrate ablated by each pulse of laser light to be substantially constant. The pulsing and scanning steps are repeated until the via is formed extending from the first surface to the second surface of the sapphire substrate.
摘要翻译：一种在具有包括超快脉冲激光源的激光加工系统的蓝宝石衬底中形成通孔的方法。提供蓝宝石衬底。激光的脉冲基本上聚焦到蓝宝石衬底的第一表面上的束斑上，使得每个聚焦的激光脉冲消除了具有小于衬底厚度的深度的蓝宝石衬底的体积。聚焦激光脉冲的束斑在蓝宝石衬底的第一表面的通孔部分上扫描。蓝宝石衬底沿着基本上垂直于第一表面的方向移动，以控制由每个激光脉冲消融的蓝宝石衬底的体积基本恒定。重复脉冲和扫描步骤，直到形成从蓝宝石衬底的第一表面延伸到第二表面的通孔。

7. 发明申请

US20060093012A1 Multimode long period fiber Bragg grating machined by ultrafast laser direct writing 失效
标题翻译：多模长周期光纤布拉格光栅通过超快速激光直接写入加工
公开(公告)号：US20060093012A1
公开(公告)日：2006-05-04
申请号：US10976524
申请日：2004-10-29
申请人： Rajminder Singh , Ming Li , Jimmy Yi-Jie Jia , Xinbing Liu , Tetsuo Ohara
发明人： Rajminder Singh , Ming Li , Jimmy Yi-Jie Jia , Xinbing Liu , Tetsuo Ohara
IPC分类号： H01S3/08
CPC分类号： G02B6/02095 , G02B6/02085 , G02B6/02147 , G02B2006/0209 , H01S5/12 , H01S5/141 , H01S5/4068
摘要： A multimode long period fiber Bragg grating (LPFBG) for a predetermined wavelength band. The LPFBG formed of a non-photosensitive material having an initial index of refraction. The multimode optical fiber core includes a substantially cylindrical surface, a longitudinal core axis, a core radius, and a number of index-altered portions having an altered index of refraction different from the initial cladding index of refraction. Each of the index-altered multimode optical fiber core has a first transmission surface and second transmission surface that is substantially parallel to the first transmission surface. Also, these index-altered portions are arranged within the non-photosensitive material of the multimode optical fiber core such that the first transmission surface of one portion of the plurality of index-altered portions is substantially parallel to the second transmission surface of a neighboring portion to form a long period Bragg grating structure.
摘要翻译：用于预定波长带的多模长周期光纤布拉格光栅（LPFBG）。 LPFBG由具有初始折射率折射率的非感光材料形成。多模光纤芯包括具有与初始包层折射率不同的改变的折射率的基本圆柱形表面，纵向芯轴，芯半径和多个折射率改变部分。每个索引改变的多模光纤芯具有基本上平行于第一传输表面的第一传输表面和第二传输表面。此外，这些折射率改变部分被布置在多模光纤芯的非感光材料内，使得多个折射率改变部分中的一部分的第一透射表面基本上平行于相邻部分的第二透射表面形成长周期布拉格光栅结构。

8. 发明授权

US06947649B2 Method of adjusting the index of refraction of photonic crystals with laser micromachining to tune transmissions within the bandgap and structure 失效
$Method of adjusting the index of refraction of photonic crystals with laser micromachining to tune transmissions within the bandgap and structure$
标题翻译：用激光微加工调整光子晶体折射率的方法来调整带隙和结构内的传输
公开(公告)号：US06947649B2
公开(公告)日：2005-09-20
申请号：US10329186
申请日：2002-12-24
申请人： Ming Li , Makoto Ishizuka , Xinbing Liu , Daniel Hogan
发明人： Ming Li , Makoto Ishizuka , Xinbing Liu , Daniel Hogan
IPC分类号： G02B6/12 , G02B6/122 , G02B6/00 , H04J14/08
CPC分类号： B82Y20/00 , G02B6/1225
摘要： A photonic crystal comprising a waveguide made of material. The waveguide has a periodic set of holes. The material proximate to at least one of the holes in the periodic set of holes exhibits an index of refraction that has been modified by the application of laser energy relative to the material proximate to other holes in the periodic set of holes.
摘要翻译：包括由材料制成的波导的光子晶体。波导具有周期性的一组孔。靠近周期性孔组中的至少一个孔的材料表现出折射率，该折射率已经通过相对于靠近周期性孔组中的其它孔的材料施加激光能量来改变。

9. 发明申请

US20050103759A1 Precision laser micromachining system for drilling holes 审中-公开
标题翻译：钻孔精密激光微加工系统
公开(公告)号：US20050103759A1
公开(公告)日：2005-05-19
申请号：US11005086
申请日：2004-12-06
申请人： Ming Li , Makoto Ishizuka , Xinbing Liu
发明人： Ming Li , Makoto Ishizuka , Xinbing Liu
IPC分类号： B23K26/00 , B23K26/04 , B23K26/06 , B23K26/38 , H01S3/08
CPC分类号： B23K26/066 , B23K26/04 , B23K26/043 , B23K26/382 , B23K26/40 , B23K2103/50
摘要： A laser drilling system for drilling holes in a work piece with a laser. The system includes: a laser for creating a laser beam and directing the laser beam along an optical path; a mask having at least one aperture, the mask and the aperture being located in the optical path to cause the creation of a sub-beam; a lens for forming a reduced-size image of the sub-beam onto the work piece and a translation stage for moving the mask to change the position of the sub-beam on the work piece. The laser beam has a wavefront cross-section with an area greater than the size of the aperture and is incident upon the mask and the aperture to create the sub-beam.
摘要翻译：一种激光钻孔系统，用于在带有激光的工件上钻孔。该系统包括：用于产生激光束并沿着光路引导激光束的激光器; 具有至少一个孔的掩模，所述掩模和所述孔位于所述光路中以引起子束的产生; 用于将子光束的尺寸减小的图像形成在工件上的透镜和用于移动掩模以使子光束在工件上的位置改变的平移台。激光束具有波面横截面，其面积大于孔径的大小，并且入射到掩模和孔以产生子光束。

10. 发明授权

US07587110B2 Multicore optical fiber with integral diffractive elements machined by ultrafast laser direct writing 失效
$Multicore optical fiber with integral diffractive elements machined by ultrafast laser direct writing$
标题翻译：具有整体衍射元件的多芯光纤通过超快速激光直接写入加工
公开(公告)号：US07587110B2
公开(公告)日：2009-09-08
申请号：US11086890
申请日：2005-03-22
申请人： Rajminder Singh , Satoshi Yamauchi , Ming Li , Jimmy Yi-Jie Jia , Tetsuo Ohara , Xinbing Liu
发明人： Rajminder Singh , Satoshi Yamauchi , Ming Li , Jimmy Yi-Jie Jia , Tetsuo Ohara , Xinbing Liu
IPC分类号： G02B6/26
CPC分类号： G02B6/02309 , G02B6/02042 , G02B6/0208 , G02B6/02085 , G02B6/021 , G02B6/02147 , G02B6/02338 , G02B6/03622 , G02B6/03638 , G02B6/29317 , G02B2006/0209
摘要： A multicore optical fiber with an integral diffractive element. The multicore optical fiber includes: a first optical fiber core formed of a non-photosensitive material having an initial index of refraction; and a second optical fiber core including a second longitudinal core axis substantially parallel to the first longitudinal axis. The first optical fiber core includes: a first longitudinal core axis; and a number of index-altered portions having an altered index of refraction which is different from the initial index of refraction. The index-altered portions are arranged within the non-photosensitive material of the first optical fiber core to form a diffractive structure of the integral diffractive element.
摘要翻译：具有整体衍射元件的多芯光纤。多芯光纤包括：由具有初始折射率折射率的非感光材料形成的第一光纤芯; 以及包括基本上平行于第一纵向轴线的第二纵向芯轴的第二光纤芯。第一光纤芯包括：第一纵向芯轴; 以及具有与初始折射率不同的改变的折射率的多个折射率改变部分。折射率改变部分布置在第一光纤芯的非感光材料内，以形成整体衍射元件的衍射结构。

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