公开(公告)号：US06229835B1

公开(公告)日：2001-05-08

申请号：US09205614

申请日：1998-12-04

申请人： Tatsuya Tomaru ,  Hrvoje Petek

发明人： Tatsuya Tomaru ,  Hrvoje Petek

IPC分类号： H01S3098

CPC分类号： H04B10/50 ,  H01S3/025 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08059 ,  H01S3/1115

摘要： A compact solid-state laser has its cavity formed by the reflection surface of a gain crystal and the reflection surface of a chirped mirror. Pumping light is incident to the cavity through the reflection surface of the gain crystal or the chirped mirror, from which the laser output is led out. Forming of the cavity solely by the gain crystal and chirped mirror enables the elimination of additional component parts for the compensation of dispersion, thereby making the entire laser system compact, and consequently permitting an increase in the repetition frequency.

摘要翻译： 紧凑型固体激光器由增益晶体的反射面和啁啾反射镜的反射面形成。 泵浦光通过增益晶体或啁啾反射镜的反射面入射到空腔，激光输出从该反射面引出。 仅通过增益晶体和啁啾反射镜形成空腔就可以消除用于补偿分散的附加组件，从而使整个激光系统紧凑，从而允许增加重复频率。

公开(公告)号：US07756385B2

公开(公告)日：2010-07-13

申请号：US11746687

申请日：2007-05-10

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： G02B6/00

CPC分类号： H04B10/508 ,  H04B10/70 ,  Y10S385/901

摘要： An antisqueezed light generator system is built with only the components for optical communications with long-term reliability. A cw-LD light is made pulses by an intensity modulator and amplified by an optical amplifier. The amplified optical pulses are made short by high-order soliton pulse compression effect at a first optical fiber and peak power is increased. A fluctuation is expanded in a phase direction through propagation in a second optical fiber. Because an initial fluctuation is amplified by the optical amplifier, the fluctuation expanded in the phase direction is increased to the extent of the amplification and sufficient antisqueezing strength can be obtained.

摘要翻译： 一个反压缩光发生器系统，只有光通信的组件长期可靠。 cw-LD光由强度调制器产生脉冲，并由光放大器放大。 通过在第一光纤上的高阶孤子脉冲压缩效应使放大的光脉冲变短，并且峰值功率增加。 在第二光纤中通过传播而在相位方向上发生波动。 由于光放大器的初始波动被放大，所以在相位方向上扩大的波动增加到扩大的程度，并且可以获得足够的抗压强度。

公开(公告)号：US07738793B2

公开(公告)日：2010-06-15

申请号：US11589222

申请日：2006-10-30

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

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

CPC分类号： H04B10/548 ,  H04L9/0858

摘要： For conventional cipher communications based on the principles of quantum mechanics, the photon number per signal needs to be controlled below 1 or to a mesoscopic level in order to make quantum-mechanical properties remarkable. This invention is intended to provide a quantum-mechanical communications' method that is practical even with a macroscopic number of photons. Antisqueezed light is transmitted using a random sender basis. The legitimate recipient can use a secret key to know the random sender basis, and thus to receive the information accurately without being affected by antisqueezing. However, because eavesdroppers unknowing of the sender basis must use haphazard bases in an attempt to receive the signals, the eavesdroppers are significantly affected by antisqueezing and the respective signal bit-error-rates are increased. This makes eavesdropping impossible, thus ensuring secure communications between the legitimate senders and recipients.

摘要翻译： 对于基于量子力学原理的常规密码通信，每个信号的光子数需要控制在1以下或介观水平，才能使量子力学性质显着。 本发明旨在提供一种甚至在宏观数量的光子时也是实用的量子力学通信方法。 使用随机发送者的基础传输防挤压的光。 合法收件人可以使用秘密密钥来了解随机发送者的基础，从而准确地接收信息，而不受反压缩的影响。 然而，由于听不到发件人基础的窃听者必须在尝试接收信号时使用随意的基础，所以窃听者受到反挤压的显着影响，相应的信号误码率增加。 这使得窃听不可能，从而确保合法发送者和收件人之间的安全通信。

公开(公告)号：US07539422B2

公开(公告)日：2009-05-26

申请号：US11109616

申请日：2005-04-20

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： H04B10/00

CPC分类号： H04B10/70

摘要： In an optical detection method that requires a reference light such as homodyne detection, a signal light and the reference light must be equal to each other in the wavelength, and the phase relation between them must be maintained constant. In order to satisfy this requirement, the signal light and the reference light are extracted from the same light source and made equal to each other in the wavelength. The signal light and the reference light are transmitted so as to be temporally superimposed on each other with orthogonal polarizations to the same optical path, thereby making the external environments equal to each other to maintain the constant phase relation.

摘要翻译： 在需要诸如零差检测的参考光的光学检测方法中，信号光和参考光必须在波长上彼此相等，并且它们之间的相位关系必须保持恒定。 为了满足该要求，信号光和参考光从相同的光源提取并在波长中彼此相等。 信号光和参考光被透射以便以相同的光路正交偏振地在时间上叠加在一起，从而使得外部环境彼此相等以保持恒定的相位关系。

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：US20050281561A1

公开(公告)日：2005-12-22

申请号：US11109616

申请日：2005-04-20

申请人： Tatsuya Tomaru

发明人： Tatsuya Tomaru

IPC分类号： G01C11/12 ,  G02F2/00 ,  H04B10/00 ,  H04B10/25 ,  H04B10/70 ,  H04L9/18

CPC分类号： H04B10/70

摘要： In an optical detection method that requires a reference light such as homodyne detection, a signal light and the reference light must be equal to each other in the wavelength, and the phase relation between them must be maintained constant. It is generally difficult that the a local light source located on a detecting unit satisfies the above conditions, and the difficulty becomes particularly remarkable in the case where a faint signal light is transmitted, as ordinarily used in quantum communications. In order to remove the difficulty, the signal light and the reference light are extracted from the same light source and made equal to each other in the wavelength. When both of the signal light and the reference light are transmitted for a long distance, a relative phase relation between the signal light and the reference light cannot be maintained constant due to a difference in the external environments of a transmission path between the signal light and the reference light. In order to solve this problem, the signal light and the reference light are transmitted so as to be temporally superimposed on each other with orthogonal polarizations to the same optical path, thereby making the external environments equal to each other to maintain the constant phase relation.

摘要翻译： 在需要诸如零差检测的参考光的光学检测方法中，信号光和参考光必须在波长上彼此相等，并且它们之间的相位关系必须保持恒定。 通常，位于检测单元上的本地光源通常难以满足上述条件，并且在通常用于量子通信中的微弱信号光的发送的情况下，难度变得特别显着。 为了消除困难，信号光和参考光从相同的光源提取并在波长上彼此相等。 当信号光和参考光两者都被传送长距离时，由于信号光和参考光之间的传输路径的外部环境的差异，信号光和参考光之间的相对相位不能保持恒定 参考灯。 为了解决这个问题，信号光和参考光被透射以便以相同的光路正交偏振在时间上叠加在一起，从而使得外部环境彼此相等以保持恒定的相位关系。

公开(公告)号：US06560267B1

公开(公告)日：2003-05-06

申请号：US09665619

申请日：2000-09-19

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： In the wavelength-division-multiplexed optical transmission, laser diodes of the number of multiplicity are disposed as a light source to configure a transmitter. However, since this method requires a large number of light sources and highly precise wavelength control, a cost and an apparatus are increased. An ultrashort pulse solid-state laser is used as the light source of the transmitter and its wide spectrum is taken out by a splitter to be assigned to each channel, so that the number of light sources can be reduced greatly. The transmitter requires high repetition rate such as 2.4 GHz, 10 HGz and the like as the repetition rate of the ultrashort pulse solid-state laser, while by configuring the resonator only by two components as shown in FIG. 1, the high repetition rate can be attained. Since each channel is produced passively from the splitter, very precise wavelength management is not required. The light source is made small and the number thereof is reduced. Consequently, the whole apparatus is made small and a cost thereof is also reduced.

摘要翻译： 在波分复用光传输中，将多个数量的激光二极管设置为光源以配置发射机。 然而，由于该方法需要大量的光源和高精度的波长控制，所以成本和装置都增加。 使用超短脉冲固态激光器作为发射器的光源，并且其分配器将其宽谱线分配给每个通道，从而可以大大减少光源的数量。 发射机需要高重复频率，例如2.4GHz，10Hz等等作为超短脉冲固态激光器的重复频率，而通过仅由两个部件构成谐振器，如图3所示。 如图1所示，可以实现高重复率。 由于每个通道都是从分离器被动产生的，所以不需要非常精确的波长管理。 光源变小，数量减少。 因此，整个装置变小，成本也降低。

公开(公告)号：US06389053B1

公开(公告)日：2002-05-14

申请号：US09503739

申请日：2000-02-15

申请人： Tatsuya Tomaru ,  Hrvoje Petek

发明人： Tatsuya Tomaru ,  Hrvoje Petek

IPC分类号： H01S3091

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.

公开(公告)号：US06307872B1

公开(公告)日：2001-10-23

申请号：US09695024

申请日：2000-10-25

申请人： Tatsuya Tomaru ,  Hrvoje Petek

发明人： Tatsuya Tomaru ,  Hrvoje Petek

IPC分类号： H01S311

CPC分类号： H04B10/50 ,  H01S3/025 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08059 ,  H01S3/1115

摘要： A compact solid-state laser has its cavity formed by the reflection surface of a gain crystal and the reflection surface of a chirped mirror. The pumping light is incident to the cavity through the reflection surface of the gain crystal or the chirped mirror, from which the laser output is led out. Forming the cavity solely by the gain crystal and chirped mirror enables the elimination of additional component parts for the compensation of dispersion, so that the whole laser system can be made compact and, consequently, the repetition frequency can be made higher.

摘要翻译： 紧凑型固体激光器由增益晶体的反射面和啁啾反射镜的反射面形成。 泵浦光通过增益晶体或啁啾反射镜的反射面入射到空腔，激光输出从该反射面引出。 仅通过增益晶体和啁啾反射镜形成空腔，可以消除用于补偿分散的附加组件，从而可以使整个激光系统紧凑，从而可以使重复频率更高。

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。