公开(公告)号：US20060025659A1

公开(公告)日：2006-02-02

申请号：US11069963

申请日：2005-03-03

申请人： Masashi Kiguchi ,  Tatsuya Tomaru ,  Hideaki Koizumi ,  Atsushi Maki ,  Hideo Kawaguchi

发明人： Masashi Kiguchi ,  Tatsuya Tomaru ,  Hideaki Koizumi ,  Atsushi Maki ,  Hideo Kawaguchi

IPC分类号： A61B5/00

CPC分类号： A61B5/14532 ,  A61B5/14558

摘要： In order to provide a compact device easy to handle and adjust for use in bloodless measurement of the glucose concentration, in which the angle of polarization varies in synchronism with the magnetic field modulation, the direction of applying the magnetic field is so arranged as to cross the optical axis.

摘要翻译： 为了提供容易处理和调节的紧凑装置，用于无血液测量葡萄糖浓度，其中偏振角与磁场调制同步地变化，施加磁场的方向被布置为交叉 光轴。

公开(公告)号：US20110311050A1

公开(公告)日：2011-12-22

申请号：US13201001

申请日：2009-06-30

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04K1/00

CPC分类号： H04L9/0822 ,  H04B10/70 ,  H04L9/0858

摘要： Communications having high security against information leakage can be established in a current optical fiber network in the following manner. (1) A sender and a receiver share a seed key in advance, and then transmit and receive random numbers superimposed on carrier light accompanied with fluctuations, where transmission basis is determined by a random number. The sender and the receiver check a shared basis determined by the seed key with a random basis and employ only a random number signal superimposed on a slot for the shared basis that coincides with the random basis, and share the random numbers between the sender and the receiver. Here, since the carrier light has fluctuations, a bit error exists in the received signals. However, because of the seed key, a legitimate receiver can receive a signal with a bit error rate smaller than an eavesdropper. (2) The information amount of the random numbers shared between the sender and the receiver is reduced to secret capacity through privacy amplification, and then the reduced random numbers are set to be a secret key. (3) An actual signal is encrypted with the obtained secret key, and is transmitted and received.

摘要翻译： 可以以下列方式在目前的光纤网络中建立具有针对信息泄漏的高安全性的通信。 （1）发送方和接收方预先共享种子密钥，然后发送和接收伴随波动的载波上叠加的随机数，其中传输基准由随机数确定。 发送方和接收方以随机为基础确定种子密钥确定的共享基础，并且仅使用叠加在时隙上的随机数信号作为与随机基准一致的共享基础，并且共享发送方和发送方之间的随机数 接收器。 这里，由于载波具有波动，所以在接收信号中存在位错误。 然而，由于种子密钥，合法的接收器可以接收比误码率小于窃听者的信号。 （2）通过隐私放大将发送方和接收方之间共享的随机数的信息量减少为秘密容量，然后将减少的随机数设置为秘密密钥。 （3）用获得的密钥对实际信号进行加密，并发送和接收。

公开(公告)号：US06879766B2

公开(公告)日：2005-04-12

申请号：US10318103

申请日：2002-12-13

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： G02B6/12 ,  G02B1/11 ,  G02B1/113 ,  G02B6/122 ,  G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/1225

摘要： The present invention provides a technique of reducing an incident/outgoing loss of a photonic crystal. On each of incident/outgoing sides of a photonic crystal, an antireflection layer made of a photonic crystal is disposed. At the incident side of a photonic crystal 200 having an effective refractive index n2, a photonic crystal 100 having an effective refractive index n1 satisfying the relation of n1

摘要翻译： 本发明提供减少光子晶体的入射/出射损失的技术。 在光子晶体的每个入射/出射侧，设置由光子晶体制成的抗反射层。 在具有有效折射率n2的光子晶体200的入射侧设置具有满足n1

公开(公告)号：US08121489B2

公开(公告)日：2012-02-21

申请号：US12128863

申请日：2008-05-29

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04B10/12

CPC分类号： H04B10/5561 ,  H04B10/505 ,  H04B10/5162 ,  H04B10/677

摘要： Signals can be superimposed on optical phase even when low-coherency light is used, and a bit rate and a signal coding format similar to those used in ordinary optical communications can be used. A transmitter includes an asymmetric interferometer or an antisqueezed light generator to convert a train of single pulses into a train of dual pulses. A receiver also includes an asymmetric interferometer that provides the same delay time as that between the dual pulses. The receiver allows pulses originating in the same light source to interfere, so that signals can be superimposed on the phase even when a low-coherency light source is used. The delay time (optical path length difference) provided in the asymmetric interferometer is set to be longer than half the period of the pulses outputted from the optical pulse source. In the transmitter, two pulses are modulated as a unit, one of the two pulses being the rear pulse of a pair of dual pulses and the other pulse being the front pulse of the next pair of dual pulses. In the receiver, a balanced detector receives the modulated pulses, and the balanced detector only outputs interference pulses but does not output non-interference pulses.

摘要翻译： 即使使用低相干光，信号也可以叠加在光学相位上，并且可以使用与普通光通信中使用的比特率和信号编码格式相似的比特率和信号编码格式。 发射机包括不对称干涉仪或抗压缩光发生器，以将单脉冲串转换成双脉冲串。 接收机还包括提供与双脉冲之间相同的延迟时间的不对称干涉仪。 接收器允许源自相同光源的脉冲干扰，使得即使使用低相干光源也可以将信号叠加在相位上。 将设置在非对称干涉仪中的延迟时间（光程差）设定为长于从光脉冲源输出的脉冲的周期的一半。 在发射机中，两个脉冲被调制为一个单位，两个脉冲之一是一对双脉冲的后脉冲，另一个脉冲是下一对双脉冲的前脉冲。 在接收机中，平衡检波器接收调制脉冲，平衡检波器仅输出干扰脉冲，但不输出不干扰脉冲。

公开(公告)号：US20060153573A1

公开(公告)日：2006-07-13

申请号：US11071298

申请日：2005-03-04

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04B10/00

CPC分类号： H04B10/70 ,  H04L9/0858

摘要： A squeezed light generating method using the Kerr effect of an optical fiber is relatively easy, but the requirements in manufacture such that a beam must be divided accurately at 50:50 are large. In addition, it is desirable that the squeezed light can be generated with arbitrary wavelength and pulse width from the viewpoint of the communication application. For that reason, the squeezed light generator of this invetion is made up of an arbitrary optical fiber, a means for temporally separating two linearly polarized components, two Faraday rotators and a high-reflection mirror. Pulse lights that are temporally separated into two orthogonally polarized components at an intensity ratio of 50:50 are reciprocatively propagated in the optical fiber, and the polarized light is rotated by 90° in an outward transmission. Since those two polarized components pass through the optical paths which are accurately equal to each other in the outward and homeward transmissions, those two polarized components interfere with each other accurately at 50:50 after reciprocation through the fiber. The interfered beam is separated by a polarizing beam splitter that is high in an extinction ratio. When the polarized lights before inputting the fiber and after reciprocating coincide with each other, it is unnecessary to maintain the polarization in the fiber propagation, and an arbitrary fiber can be used.

摘要翻译： 使用光纤的克尔效应的挤压光产生方法相对容易，但是制造中要求在50:50处必须精确地分割的要求很大。 此外，从通信应用的观点来看，希望可以产生任意波长和脉冲宽度的挤压光。 因此，这种投射的挤压光发生器由任意光纤，用于时间分离两个线性偏振分量的装置，两个法拉第旋转器和高反射镜组成。 以50:50的强度比时间上分成两个正交极化分量的脉冲光在光纤中往复传播，偏振光在向外透射中旋转90°。 由于这两个偏振分量通过在向外和归位传输中彼此精确相等的光路，所以这两个偏振分量在通过光纤往复运动之后在50:50处精确地相互干扰。 受干扰的光束由消光比高的偏振光束分离器分离。 当在输入光纤之前和之后的偏振光相互重合时，不需要在光纤传播中保持极化，并且可以使用任意的光纤。

公开(公告)号：US06778579B2

公开(公告)日：2004-08-17

申请号：US10084382

申请日：2002-02-28

申请人： Tatsuya Tomaru ,  Hrvoje Petek

发明人： Tatsuya Tomaru ,  Hrvoje Petek

IPC分类号： H01S391

CPC分类号： H01S3/09415

摘要： In a solid-state laser in which a gain crystal is polished to have the Brewster angle or a solid-state laser comprising a dichroic concave mirror to which light enters at an incidence angle which is not zero, astigmatism generally occurs in pumping light. By tilting a focusing lens for pumping light with respect to the optical axis of the pumping light, the astigmatism is compensated. The tilting angle is determined in such a manner that synthetic focusing points in the sagittal and tangential planes, of a series optical system of a focusing lens, a dichroic concave lens, and a gain crystal are calculated and the focusing points almost coincide with focusing points in a cavity mode.

摘要翻译： 在其中将增益晶体抛光以具有布鲁斯特角的固态激光器或包括以不为零的入射角入射的二色性凹面镜的固态激光器，通常在泵浦光中发生像散。 通过倾斜相对于泵浦光的光轴来泵浦光的聚焦透镜，散光被补偿。 以如下方式确定倾斜角度：计算聚焦透镜的串联光学系统，二向色凹透镜和增益晶体的矢状面和切向平面中的合成聚焦点，并且聚焦点几乎与聚焦点一致 在腔模式。

公开(公告)号：US06754248B2

公开(公告)日：2004-06-22

申请号：US10420902

申请日：2003-04-23

申请人： Tatsuya Tomaru ,  Hrvoje Petek

发明人： Tatsuya Tomaru ,  Hrvoje Petek

IPC分类号： H01S308

CPC分类号： H01S3/0602 ,  H01S3/08 ,  H01S3/08059 ,  H01S3/09415 ,  H01S3/1112 ,  H01S3/1623 ,  H01S3/1643

摘要： A solid-state laser having an excitation light source, a lens system for focusing an excitation light produced from the light source, and a laser resonator which is laser-oscillated in response to the focused excitation light. The resonator includes only a gain medium and a solid-state medium having dispersion of a wavelength dependence opposite to that of the gain medium, and surfaces of the gain medium and the solid-state medium, which are respectively at opposite sides of opposing surfaces of the gain medium and the solid-state medium, are reflectively coated and act as mirror surfaces. At least one of the other surfaces of the gain medium and the solid-state medium, which ate positioned inside the resonator and are opposite to each other, is polished to a curved surface. The gain medium is excited by the focused excitation light so that the laser oscillation is made in the resonator.

摘要翻译： 具有激发光源的固态激光器，用于聚焦由光源产生的激发光的透镜系统以及响应于聚焦激发光激光振荡的激光谐振器。 谐振器仅包括增益介质和具有与增益介质的波长依赖相反的色散的固态介质，以及增益介质和固态介质的分别位于相对表面的相对侧的表面 增益介质和固态介质被反射涂覆并用作镜面。 增益介质和固体介质的其他表面中的至少一个，其被放置在谐振器内部并且彼此相对的位置被抛光到弯曲表面。 增益介质被聚焦的激发光激发，使得在谐振器中进行激光振荡。

公开(公告)号：US6091495A

公开(公告)日：2000-07-18

申请号：US997700

申请日：1997-12-23

申请人： Susumu Ogawa ,  Hrvoje Petek ,  Hisashi Nagano ,  Albert Heberle ,  Tatsuya Tomaru

发明人： Susumu Ogawa ,  Hrvoje Petek ,  Hisashi Nagano ,  Albert Heberle ,  Tatsuya Tomaru

IPC分类号： G01J9/02 ,  H04B10/50 ,  G01B9/02

CPC分类号： H04B10/50 ,  G01J9/02

摘要： A femtosecond pulse incident on a Mach-Zehnder interferometer is divided into two optical paths and thereafter synthesized again. The synthesized optical pulse is outputted as complementary two output optical pulses corresponding to the difference between optical paths. An optical interferometer for monitoring fluctuations of the optical path difference from one of two output optical pulses produced from an interferometer, effecting feedback on the optical path difference and providing an operation stabilized in a relation of 1/20 or less the central wavelength, and an optical signal synthesizer using the interferometer are provided.

摘要翻译： 入射在马赫 - 曾德干涉仪上的飞秒脉冲被分成两个光路，然后再次合成。 合成的光脉冲作为对应于光路之差的互补的两个输出光脉冲输出。 一种光干涉仪，用于监测从干涉仪产生的两个输出光脉冲之一的光路差的波动，对光程差产生反馈并提供以中心波长为1/20或更小的关系稳定的操作，以及 提供了使用干涉仪的光信号合成器。

公开(公告)号：US08582770B2

公开(公告)日：2013-11-12

申请号：US13201001

申请日：2009-06-30

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04L29/06

CPC分类号： H04L9/0822 ,  H04B10/70 ,  H04L9/0858

摘要： Communications having high security against information leakage can be established in a current optical fiber network in the following manner. (1) A sender and a receiver share a seed key in advance, and then transmit and receive random numbers superimposed on carrier light accompanied with fluctuations, where transmission basis is determined by a random number. The sender and the receiver check a shared basis determined by the seed key with a random basis and employ only a random number signal superimposed on a slot for the shared basis that coincides with the random basis, and share the random numbers between the sender and the receiver. Here, since the carrier light has fluctuations, a bit error exists in the received signals. However, because of the seed key, a legitimate receiver can receive a signal with a bit error rate smaller than an eavesdropper. (2) The information amount of the random numbers shared between the sender and the receiver is reduced to secret capacity through privacy amplification, and then the reduced random numbers are set to be a secret key. (3) An actual signal is encrypted with the obtained secret key, and is transmitted and received.

摘要翻译： 可以以下列方式在目前的光纤网络中建立具有针对信息泄漏的高安全性的通信。 （1）发送方和接收方预先共享种子密钥，然后发送和接收伴随波动的载波上叠加的随机数，其中传输基准由随机数确定。 发送方和接收方以随机为基础确定种子密钥确定的共享基础，并且仅使用叠加在时隙上的随机数信号作为与随机基准一致的共享基础，并且共享发送方和发送方之间的随机数 接收器。 这里，由于载波具有波动，所以在接收信号中存在位错误。 然而，由于种子密钥，合法的接收器可以接收比误码率小于窃听者的信号。 （2）通过隐私放大将发送方和接收方之间共享的随机数的信息量减少为秘密容量，然后将减少的随机数设置为秘密密钥。 （3）用获得的密钥对实际信号进行加密，并发送和接收。

公开(公告)号：US07865086B2

公开(公告)日：2011-01-04

申请号：US11905814

申请日：2007-10-04

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04L9/12 ,  H04B10/00 ,  H04B10/04 ,  H04B10/06

CPC分类号： H04B10/85 ,  H04L9/0858

摘要： Regardless of a transmission basis, a phase of a signal light with reference to a phase of local light is measured, and an output light from an antisqueezed light source in a transponder device is modulated in accordance with the measured phase. Since information obtainable in the transponder device is only the relative phase of the signal light with reference to the phase of the local light, and includes fluctuations corresponding to an antisqueezed component of the signal light, even if the information in the transponder device is eavesdropped on, the information cannot be decoded easily.

摘要翻译： 不论传输方式如何，都测量相对于局部光的相位的信号光的相位，根据被测相位调制来自转发器装置的反压缩光源的输出光。 由于在应答器装置中可获得的信息仅是相对于局部光的相位的信号光的相对相位，并且包括对应于信号光的反压缩分量的波动，即使应答器装置中的信息被窃听 ，信息不能轻易解码。