公开(公告)号：US07092419B2

公开(公告)日：2006-08-15

申请号：US09954495

申请日：2001-09-10

申请人： Bruce R. Woodley ,  Neil MacKinnon

发明人： Bruce R. Woodley ,  Neil MacKinnon

IPC分类号： H01S3/00 ,  H01S3/097

CPC分类号： H01S5/06256 ,  H01S5/0425 ,  H01S5/06255 ,  H01S5/1032 ,  H01S5/1228 ,  H01S5/4031 ,  H01S5/50 ,  H01S5/5045

摘要： An electric field that changes across space is synthesized, by applying voltage levels independent of one another at several locations. The independence in voltage levels allows the electric field that is synthesized to be made periodic or aperiodic. Such a synthesized electric field may be changed at any time for use in, for example, a tunable laser. In one embodiment, the voltage levels are oversampled, although in other embodiments the voltage levels need not be oversampled, e.g. if the to-be-synthesized electric field is aperiodic. Also, in one embodiment, the electric field is used to change the refractive index of an electro-optic substance (such as lithium niobate) in an optical filter. Such an optical filter can be used as part of a wavelength agile laser or in an optical add drop multiplexer or in an optical switch. Such a filter can also be used for dynamic power balancing and/or for dynamic gain equalization.

公开(公告)号：US20130250085A1

公开(公告)日：2013-09-26

申请号：US13424633

申请日：2012-03-20

申请人： Neil MacKinnon

发明人： Neil MacKinnon

IPC分类号： H04N7/18

CPC分类号： A61B3/1216 ,  G06K9/00604 ,  G06K9/2036 ,  H04N5/2256

摘要： An iris imaging and illumination system is used to resolve and record the fine musculature features of an iris. The system can improve the quality of an iris image and facilitate the image capturing process by focusing illumination on an ocular area of a subject. By limiting illumination of other parts of a face, reflections from the face are reduced. The system has a compact physical arrangement by placing the illumination sources proximate to one another and splaying them in order to focus illumination on the ocular areas of a subject.

摘要翻译： 虹膜成像和照明系统用于解决和记录虹膜的细微肌肉组织特征。 该系统可以提高虹膜图像的质量，并通过将照明聚焦在被摄体的眼部区域来促进图像捕获过程。 通过限制脸部其他部位的照明，减少了脸部的反射。 该系统具有紧凑的物理布置，通过将照明源靠近彼此并且张开它们以将照明聚焦在被摄体的眼部区域上。

公开(公告)号：US5949802A

公开(公告)日：1999-09-07

申请号：US947203

申请日：1997-10-08

申请人： Neil MacKinnon ,  Ping Xie

发明人： Neil MacKinnon ,  Ping Xie

IPC分类号： H01S3/098 ,  H01S3/109 ,  H01S3/10

CPC分类号： H01S3/109 ,  H01S3/08036 ,  H01S3/08054

摘要： An intracavity doubled single longitudinal mode laser is disclosed which provides stable (i.e., low amplitude variation in its output beam intensity), efficient operation. An associated method is also disclosed. The laser includes an input mirror and an output mirror defining a resonant cavity and a light path within the resonant cavity and between the mirrors. The output mirror is configured to be substantially transparent to an output wavelength produced within the cavity. A lasant material is positioned in the light path for producing light at a desired fundamental wavelength and possibly other, unwanted wavelengths. Polarizing element and a type I doubling material are also positioned in the light path. During operation of the laser, the polarizing element polarizes the desired fundamental wavelength as well as the unwanted wavelengths of light produced by the lasant material. The type I doubling material then produces output wavelengths at twice the frequency of any wavelengths passing therethrough. The type I doubling material and the polarizing element are arranged such that they cooperate in a way which causes the unwanted wavelengths to be subjected to losses which result in the unwanted wavelengths being extinguished while the desired fundamental wavelength is subjected to a level of loss above a lasing threshold so that the desired fundamental wavelength lases, thereby producing the desired output wavelength. In one aspect of the invention, blue light may be produced as the output wavelength with an efficiency which has not been seen previously.

摘要翻译： 公开了腔内加倍的单纵模式激光器，其提供稳定的（即，其输出光束强度的低振幅变化），有效的操作。 还公开了一种相关联的方法。 激光器包括输入反射镜和输出反射镜，其限定谐振腔和在谐振腔内和反射镜之间的光路。 输出镜被配置为对腔内产生的输出波长基本上是透明的。 将一种未加工的材料定位在光路中，用于产生所需基本波长的光和可能的其它不期望的波长。 偏振元件和I型双重材料也位于光路中。 在激光器的操作期间，偏振元件使所希望的基本波长以及由惰性材料产生的光的不需要的波长偏振。 然后，I型倍增材料产生两倍于通过其中的任何波长的频率的输出波长。 I型双重材料和偏振元件被布置成使得它们以使得不想要的波长受到损耗的方式配合，这导致不想要的波长被熄灭，同时期望的基波长受到高于 激光阈值使得所需的基本波长发光，从而产生期望的输出波长。 在本发明的一个方面中，可以产生蓝光作为输出波长，其效率以前没有看到。

公开(公告)号：US6154472A

公开(公告)日：2000-11-28

申请号：US150436

申请日：1998-09-09

申请人： Neil MacKinnon ,  Ping Xie

发明人： Neil MacKinnon ,  Ping Xie

IPC分类号： H01S3/098 ,  H01S3/109 ,  H01S3/10

CPC分类号： H01S3/109 ,  H01S3/08036 ,  H01S3/08054

摘要： As will be described in more detail hereinafter, an intracavity doubled single longitudinal mode laser is disclosed which provides stable (i.e., low amplitude variation in its output beam intensity), efficient operation in conjunction with a highly advantageous decoupled alignment configuration. An associated method is also disclosed. A lasant material is positioned in the light path of the laser for producing light at a desired fundamental wavelength and possibly other, unwanted wavelengths. Polarizing means is also positioned in the light path for polarizing the desired fundamental wavelength and the unwanted wavelengths of light. In addition to the polarizing means, birefringent means is positioned in the light path on one side of the polarizing means for selectively subjecting the unwanted wavelengths to losses in cooperation with the polarizing means such that the unwanted wavelengths are extinguished while the desired fundamental wavelength is subjected to a level of loss above a lasing threshold so that the desired fundamental wavelength lases. A type I doubling material is adjustably arranged in the light path for producing the doubled frequency light at twice the frequency of the desired fundamental frequency passing therethrough and for adjustment of phase matching which establishes an efficiency at which the doubled light frequency is produced. The birefringent means and the type I doubling material are arranged on opposite sides of the polarizing means along the light path so as to substantially decouple wavelength selection performed by adjusting the birefringent means from the phase matching adjustment performed by adjusting the type I doubling material.

摘要翻译： 如将在下文中更详细地描述的，公开了腔内加倍的单纵模激光器，其提供稳定（即，其输出光束强度中的低幅度变化），有效操作以及高度有利的解耦对准配置。 还公开了一种相关联的方法。 一种农药材料位于激光的光路中，用于产生所需基本波长和可能的其他不需要的波长的光。 偏振装置也位于光路中，用于偏振所需的基本波长和不想要的波长的光。 除了偏振装置之外，双折射装置位于偏振装置的一侧的光路中，用于选择性地使不期望的波长与偏振装置协调地损失，使得不期望的波长在所需的基本波长受到影响时熄灭 达到高于激光阈值的水平，使得期望的基本波长发生变化。 I型双重材料可调节地布置在光路中，用于产生通过其所需基频的两倍频率的双频光，并且用于调整相位匹配，从而确定产生双倍光频率的效率。 双折射装置和I型双重材料沿着光路布置在偏振装置的相对侧上，从而通过调节I型双重材料进行的相位匹配调整，基本上使通过调节双折射装置执行的波长选择去耦合。

公开(公告)号：US06987784B2

公开(公告)日：2006-01-17

申请号：US10244618

申请日：2002-09-17

申请人： Bruce Robert Woodley ,  Neil MacKinnon

发明人： Bruce Robert Woodley ,  Neil MacKinnon

IPC分类号： H01S3/10 ,  H01S3/00

CPC分类号： H01S5/06255 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/1032 ,  H01S5/1228 ,  H01S5/4031 ,  H01S5/50 ,  H01S5/5045

摘要： A method and system are disclosed for synthesizing an electric field. In accordance with exemplary embodiments of the present invention, an electric field that changes across a distance in space is synthesized by applying voltage levels at several locations independently of one another. The independence in voltage levels allows the electric field that is synthesized to be made periodic or aperiodic. Such a synthesized electric field can be changed at any time for use in, for example, a tunable laser. According to an exemplary embodiment, the electric field is used to change the refractive index of an electro-optic substance in an optical filter. Such an optical filter can be used as part of, for example, a wavelength agile laser, an optical add drop multiplexer, an optical switch, or the like. Such an optical filter can also be used for dynamic power balancing, dynamic gain equalization, or the like.

公开(公告)号：US09138140B2

公开(公告)日：2015-09-22

申请号：US13424633

申请日：2012-03-20

申请人： Neil MacKinnon

发明人： Neil MacKinnon

IPC分类号： H04N9/47 ,  H04N7/18 ,  A61B3/12 ,  H04N5/225 ,  G06K9/00 ,  G06K9/20

CPC分类号： A61B3/1216 ,  G06K9/00604 ,  G06K9/2036 ,  H04N5/2256

摘要： An iris imaging and illumination system is used to resolve and record the fine musculature features of an iris. The system can improve the quality of an iris image and facilitate the image capturing process by focusing illumination on an ocular area of a subject. By limiting illumination of other parts of a face, reflections from the face are reduced. The system has a compact physical arrangement by placing the illumination sources proximate to one another and splaying them in order to focus illumination on the ocular areas of a subject.

摘要翻译： 虹膜成像和照明系统用于解决和记录虹膜的细微肌肉组织特征。 该系统可以提高虹膜图像的质量，并通过将照明聚焦在被摄体的眼部区域来促进图像捕获过程。 通过限制脸部其他部位的照明，减少了脸部的反射。 该系统具有紧凑的物理布置，通过将照明源靠近彼此并且张开它们以将照明聚焦在被摄体的眼部区域上。

公开(公告)号：US06366373B1

公开(公告)日：2002-04-02

申请号：US09449043

申请日：1999-11-24

申请人： Neil MacKinnon ,  Lee Joseph Zipin

发明人： Neil MacKinnon ,  Lee Joseph Zipin

IPC分类号： H04B1012

CPC分类号： H04Q11/0003 ,  H04B10/0773 ,  H04B2210/078 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0298 ,  H04Q11/0066 ,  H04Q2011/0073

摘要： A method allowing reliable routing of individual optical carriers through an optical network is disclosed. Routing information is impressed on individual carriers by a method known as subband quadrature coding (SQC). The optical carrier is modulated at a first frequency, and at a first intensity to impress application data on the carrier. The carrier is additionally modulated at a second frequency, preferably two orders of magnitude less than the first frequency, and at a second intensity less than the first intensity to impress management data on the carrier for routing the carrier through an optical communications network, from a source to a destination. According to the method, the management data is continuously impressed upon the carrier during transmission of the application data. The optical carrier is multiplexed onto the fiber optic communications line, and upon reaching a first node, the carrier is demultiplexed and an intensity sample of the carrier is detected. The management data is then separated out with a low pass filter, whereupon in response the method directs the carrier signal according to the management data.

摘要翻译： 公开了允许通过光网络可靠路由各个光载波的方法。 路由信息通过称为子带正交编码（SQC）的方法印在各个载波上。 光载波以第一频率和第一强度被调制，以将载体上的应用数据压印。 载波被附加地调制在比第一频率小的第二频率，优选地比第一频率小两个数量级，并且以小于第一强度的第二强度来调制，以在载波上施加管理数据，以将载波通过光通信网络从 来源到目的地。 根据该方法，在应用数据的传输期间，管理数据不断地印在载体上。 光载波被复用到光纤通信线路上，并且在到达第一节点时，载波被解复用并检测载波的强度采样。 然后，管理数据用低通滤波器分离出来，于是响应该方法根据管理数据指示载波信号。

公开(公告)号：US06320889B1

公开(公告)日：2001-11-20

申请号：US09375917

申请日：1999-08-17

申请人： Neil MacKinnon

发明人： Neil MacKinnon

IPC分类号： H01S313

CPC分类号： H01S3/08 ,  H01S3/105

摘要： A single mode laser is described including a gain swept configuration. The laser includes an input mirror and an output mirror defining a resonant cavity and a light path within the resonant cavity and between the mirrors. A laser gain material is positioned at a predetermined location along the light path and arranged with a predetermined gain length along the light path for producing light at the desired output wavelength such that a standing wave pattern at the desired output wavelength is formed within the cavity between the mirrors. The gain material is capable of producing light at other, unwanted wavelengths which can potentially form other standing wave patterns. All of the wavelengths are produced with some gain. Oscillation means is provided for varying the length of the light path which, by varying the length of the light path a sufficient amount, causes the standing wave pattern of the desired output wavelength to oscillate as a traveling wave along the light path such that the standing wave pattern moves through at least substantially the entire gain length of the gain material along the light path for extracting substantially all of the available gain from the gain material, whereby only the desired output wavelength lasers.

摘要翻译： 描述了包括增益扫描配置的单模激光器。 激光器包括输入反射镜和输出反射镜，其限定谐振腔和在谐振腔内和反射镜之间的光路。 激光增益材料沿着光路定位在预定位置处并且沿着光路以预定增益长度布置，以产生期望输出波长的光，使得在腔内形成期望输出波长的驻波图案 镜子。 增益材料能够产生可能形成其他驻波图案的其它不需要的波长的光。 所有的波长都产生一些增益。 提供了振荡装置，用于改变光路的长度，通过改变光路的长度足够的量使得期望的输出波长的驻波图案沿光路作为行波振荡，使得站立 波形图案沿着光路至少基本上移动增益材料的整个增益长度，用于从增益材料中提取基本上所有的可用增益，从而仅仅是期望的输出波长激光器。

公开(公告)号：US5651023A

公开(公告)日：1997-07-22

申请号：US517330

申请日：1995-08-21

申请人： Neil MacKinnon

发明人： Neil MacKinnon

IPC分类号： H01S3/02 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/098 ,  H01S3/106 ,  H01S3/109 ,  H01S3/08

CPC分类号： H01S3/0627 ,  H01S3/109 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/106

摘要： A laser comprising a laser cavity (13) having reflectors at each end of an optical path, a first layer of gain material (15) and a second layer of a second material (14, 16) disposed along the optical path, wherein the first and second layer are directly optically contacted to one another at associated faces. Also, a laser comprising a laser cavity having a layer of gain material (15), and second and third crystals (14,16) having anisotropic refractive indices disposed along an optical path, the laser being oscillatory in a preferred mode having a particular orientation of polarization, the second crystal (16) being oriented with respect to the path to cause no appreciable net depolarisation of the preferred mode, and the third crystal (14) being arranged such that the preferred mode is transmittable therethrough with minimal refraction.

摘要翻译： 一种激光器，包括在光路的每一端具有反射器的激光腔（13），沿光路设置的第一增益材料层（15）和第二材料层（14,16）的第二层，其中第一 并且第二层在相关联的面处彼此直接光学接触。 此外，激光器包括具有增益材料层（15）的激光腔和具有沿着光路设置的各向异性折射率的第二和第三晶体（14,16），所述激光器以具有特定取向的优选模式振荡 第二晶体（16）相对于路径取向，不会引起优选模式的明显的去极化，并且第三晶体（14）被布置成使得优选的模式以最小的折射透射通过。

公开(公告)号：US5539765A

公开(公告)日：1996-07-23

申请号：US516016

申请日：1995-08-16

申请人： Wilson Sibbett ,  Bruce D. Sinclair ,  Neil MacKinnon

发明人： Wilson Sibbett ,  Bruce D. Sinclair ,  Neil MacKinnon

IPC分类号： H01S3/06 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/16

CPC分类号： H01S3/0627 ,  H01S2302/00 ,  H01S3/0604 ,  H01S3/0615 ,  H01S3/08086 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1611 ,  H01S3/1673

摘要： A laser 10 comprises a pump source 11, a resonator 13 including an etalon of gain material 15, and means 12 to focus the pump source 11 output onto one end 14 of the resonator 13 as a spot having a diameter in the range 50-150 .mu.m. The resonator 13 includes substantially parallel end faces 14,19 having a relative taper better than 0.25 milliradians, and the end faces 14,19 are substantially free of scratches greater than 10 .mu.m in size and pits greater than 5 .mu.m in size. A thermally induced microlens 22 is formed at the surface 14 of the gain material 15.

摘要翻译： 激光器10包括泵浦源11，包括增益材料15的标准具的谐振器13以及将泵浦源11输出到谐振器13的一端14上的方式12，该直径为直径在50-150范围内的点 亩 谐振器13包括基本上平行的端面14,19，其具有优于0.25毫弧度的相对锥度，并且端面14,19基本上没有大于10微米的大小和大于5微米的凹痕。 在增益材料15的表面14处形成热诱导微透镜22。