公开(公告)号：US06390633B1

公开(公告)日：2002-05-21

申请号：US09875919

申请日：2001-06-08

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B510

摘要： An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light. The modified cone shape of the mirror can be designed so that the apparatus provides a uniform chromatic dispersion to light in the same channel of a wavelength division multiplexed light. The mirror can be moved in a direction perpendicular to an angular dispersion direction of the VIPA generator, to change the amount of chromatic dispersion provided to the input light.

公开(公告)号：US06317526B1

公开(公告)日：2001-11-13

申请号：US09216984

申请日：1998-12-21

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02F1035

CPC分类号： G02F1/2252 ,  G02F1/0147

摘要： A heater coats an optical fiber. In addition, an apparatus, such as an optical switch, a Mach-Zehnder interferometer, or a Michelson interferometer, includes optical fibers transmitting light in optical paths, and 3-dB couplers, coupled to the optical fibers, splitting input light into the optical paths, and recombining output light into output paths. The apparatus also includes the heater coating a portion of one of the optical fibers and heating the one of the optical fibers to change the optical phase of the light traveling in the one of the optical paths. A second heater coats a portion of another of the optical fibers and heats the another of the optical fibers to change the relative optical phase of the light traveling in the one of the optical paths and the another of the optical paths. A detector is coupled to one of the optical paths and detects power of leaked light in the optical path and a heater controller is coupled to the detector and to the heater, and controls the heater based upon the power of the leaked light.

摘要翻译： 加热器涂覆光纤。 另外，诸如光开关，马赫曾德尔干涉仪或迈克尔逊干涉仪之类的装置包括在光路中传输光的光纤和耦合到光纤的3-dB耦合器，将输入光分成光学 路径，并将输出光重新组合成输出路径。 该设备还包括加热器涂覆光纤中的一个的一部分并加热光纤中的一个以改变在一个光路中行进的光的光学相位。 第二加热器涂覆另一个光纤的一部分并加热另一个光纤以改变在光路中的另一个光路中行进的光的相对光学相位。 检测器耦合到光路之一并且检测光路中的泄漏光的功率，并且加热器控制器耦合到检测器和加热器，并且基于泄漏的光的功率来控制加热器。

公开(公告)号：US06185040B2

公开(公告)日：2001-02-06

申请号：US09352660

申请日：1999-07-07

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B2700

CPC分类号： G02B6/29358 ,  G02B6/29394

摘要： A virtually imaged phased array (VIPA) which receives an input light at a respective wavelength, and produces a spatially distinguishable output light in accordance with the wavelength of the input light. The VIPA has first and second surfaces. The second surface has a reflectivity which causes a portion of light incident thereon to be transmitted therethrough. The first and second surfaces are positioned so that the input light is reflected a plurality of times between the first and second surfaces to cause a plurality of lights to be transmitted through the second surface. The plurality of transmitted lights interfere with each other to produce an output light which is spatially distinguishable from an output light produced for an input light having any other wavelength within the continuous range of wavelengths. A spacer element has an approximately zero thermal expansion coefficient and maintains the relative positioning between the first and second surfaces to be constant. Preferably, the magnitude of the thermal expansion coefficient of the spacer element is less than or equal to 10−5/° C. Even more preferable, the magnitude of the thermal expansion coefficient of the spacer element is less than or equal to 10−6/° C.

摘要翻译： 实际成像的相控阵列（VIPA），其接收相应波长的输入光，并根据输入光的波长产生空间上可区分的输出光。 VIPA有第一和第二表面。 第二表面具有使入射到其上的光的一部分透射的反射率。 第一和第二表面被定位成使得输入光在第一和第二表面之间反复多次，以使多个光透过第二表面。 多个透射光彼此干涉以产生与在连续波长范围内具有任何其它波长的输入光产生的输出光在空间上可区分的输出光。 间隔元件具有近似为零的热膨胀系数，并且使第一和第二表面之间的相对定位保持恒定。 优选地，间隔元件的热膨胀系数的大小小于或等于10-5 /℃。甚至更优选的是，间隔元件的热膨胀系数的大小小于或等于10-6 /C。

公开(公告)号：US6144494A

公开(公告)日：2000-11-07

申请号：US140638

申请日：1998-08-26

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B6/34 ,  G02B26/06 ,  G02B27/00 ,  G02B27/10 ,  H04B10/18 ,  G02B5/04

CPC分类号： G02B6/29358 ,  G02B26/06 ,  G02B27/0025 ,  G02B27/106 ,  G02B27/144 ,  G02B27/145 ,  G02B6/29392 ,  H04B10/25133

摘要： A virtually imaged phased array (VIPA) which receives an input light at a respective wavelength, and produces a spatially distinguishable output light in accordance with the wavelength of the input light. The VIPA has first and second surfaces. The second surface has a reflectivity which causes a portion of light incident thereon to be transmitted therethrough. The first and second surfaces are positioned so that the input light is reflected a plurality of times between the first and second surfaces to cause a plurality of lights to be transmitted through the second surface. The plurality of transmitted lights interfere with each other to produce an output light which is spatially distinguishable from an output light produced for an input light having any other wavelength within the continuous range of wavelengths. A spacer element has an approximately zero thermal expansion coefficient and maintains the relative positioning between the first and second surfaces to be constant. Moreover, an adjusting element is positioned between the first and second surfaces and is adjustable to change the optical distance between the first and second surfaces.

摘要翻译： 实际成像的相控阵列（VIPA），其接收相应波长的输入光，并根据输入光的波长产生空间上可区分的输出光。 VIPA有第一和第二表面。 第二表面具有使入射到其上的光的一部分透射的反射率。 第一和第二表面被定位成使得输入光在第一和第二表面之间反复多次，以使多个光透过第二表面。 多个透射光彼此干涉以产生与在连续波长范围内具有任何其它波长的输入光产生的输出光在空间上可区分的输出光。 间隔元件具有近似为零的热膨胀系数，并且使第一和第二表面之间的相对定位保持恒定。 此外，调节元件位于第一和第二表面之间，并且是可调节的，以改变第一和第二表面之间的光学距离。

公开(公告)号：US5073331A

公开(公告)日：1991-12-17

申请号：US340010

申请日：1989-04-13

申请人： Masataka Shirasaki

发明人： Masataka Shirasaki

IPC分类号： H01S5/0683 ,  H04B10/50 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04B10/50 ,  H04L27/12 ,  H04L27/2096 ,  H01S5/0683 ,  H01S5/06832

摘要： A method of modulating a semiconductor laser, a method of stabilizing a self-homodyne optical interferometer and a light modulation apparatus using a semiconductor laser is provided for use, for example, in various optical communication systems. To avoid the adverse affect on a semiconductor laser of wavelength chirping and to facilitate high-speed direct modulation, a predetermined short pulse current is superimposed on a bias current to drive a semiconductor laser, thereby phase-modulating the output light at a high speed, eliminating the phase deviation at the output of the light interferometer of the self-homodyne-type and achieving a stable output from the semiconductor laser. The average intensity of the output light is obtained, thereby applying a feedback to a wavelength of the input light or to a difference in an optical path length of the optical interferometer itself in accordance with the average intensity of the output light in order to correct the phase bias when modulating the intensity. To perform a high-speed stable phase intensity modulation, transmission data is subject to sign conversion in accordance with a predetermined rule and thereafter is subject to differentiation. The differentiated signal is superimposed on a constant bias current as a modulating current pulse to drive a semiconductor laser, and the output thereof is intensity-modulated through the self-homodyne optical interferometer.

摘要翻译： PCT No.PCT / JP89 / 00220 Sec。 371日期：1989年4月13日 102（e）日期1989年4月13日PCT 1989年3月2日PCT公布。 出版物WO89 / 08356 日期：1989年9月8日。提供了一种半导体激光器的调制方法，使用半导体激光器的自平差光学干涉仪的稳定化方法和光调制装置，例如用于各种光通信系统中。 为了避免对波长啁啾的半导体激光器的不利影响并且促进高速直接调制，将预定的短脉冲电流叠加在偏置电流上以驱动半导体激光器，从而以高速相位调制输出光， 消除了自平差型的光干涉仪的输出处的相位偏差，并实现了半导体激光器的稳定输出。 获得输出光的平均强度，从而根据输出光的平均强度对输入光的波长或光干涉仪本身的光程长度的差进行反馈，以便校正 调制强度时的相位偏差。 为了执行高速稳定的相位强度调制，根据预定规则对发送数据进行符号转换，然后进行差分化。 微分信号作为调制电流脉冲叠加在恒定偏置电流上以驱动半导体激光器，并且其输出通过自 - 零差光学干涉仪进行强度调制。

公开(公告)号：US08708507B2

公开(公告)日：2014-04-29

申请号：US12928647

申请日：2010-12-16

申请人： Masataka Shirasaki

发明人： Masataka Shirasaki

IPC分类号： G02B5/08 ,  G02B5/10

CPC分类号： G02B17/002 ,  G02B17/0808 ,  G02B17/0812 ,  G02B17/086 ,  G02B25/007 ,  G02B27/10 ,  G02C7/08

摘要： The magnifying apparatus is based on two dimensional arrays of micro magnifying modules (MMMs) positioned along a plane perpendicular to the axis of the magnifying apparatus. In addition, the structure may include a two dimensional array of micro beam multipliers (MBMs) to improve the quality of the magnified image. The micro beam multipliers are positioned along a plane parallel to the array of micro magnifying modules. The structure also may include a two dimensional array of ray angle adjusters (RAAs) to extend the view angle. The ray angle adjusters are positioned along a plane parallel to the array of micro magnifying modules. The array of micro magnifying modules, with or without the micro beam multipliers and/or ray angle adjusters, may be constructed as a thin plate with a thickness of a few millimeters, through which the object is viewed. An object at a distance appears in the magnifying apparatus as a magnified image and the magnifying apparatus can be used for viewing an object at a distance in a way similar to the use of a conventional magnifier for viewing an object in a short distance.

摘要翻译： 放大装置基于沿着垂直于放大装置的轴的平面定位的微放大模块（MMM）的二维阵列。 此外，该结构可以包括用于改善放大图像的质量的微束乘法器（MBM）的二维阵列。 微波束乘法器沿着平行于微放大模块阵列的平面定位。 该结构还可以包括用于延伸视角的射线角度调节器（RAA）的二维阵列。 射线角度调节器沿着平行于微放大模块阵列的平面定位。 具有或不具有微光束乘法器和/或光线角度调节器的微放大模块阵列可以被构造为厚度为几毫米的薄板，通过该薄板观察物体。 远距离的物体作为放大图像出现在放大装置中，并且放大装置可以用于以与使用常规放大镜相似的距离观看物体，以便在短距离内观看物体。

公开(公告)号：US07193778B2

公开(公告)日：2007-03-20

申请号：US10913360

申请日：2004-08-09

申请人： Simon Xiaofan Cao ,  Masataka Shirasaki

发明人： Simon Xiaofan Cao ,  Masataka Shirasaki

IPC分类号： G02B27/00

CPC分类号： G02B27/148 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29392 ,  G02B6/29394 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1006 ,  G02B27/106 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/144 ,  G02B27/145 ,  G02B27/147 ,  H04B10/25133

摘要： Various configurations of a virtually imaged phased array (VIPA) generator in combination with a mirror to compensate for chromatic dispersion. A VIPA generator produces a light traveling from the VIPA generator. In some embodiments, a variable curvature mirror is positioned to reflect the light back to the VIPA generator. A rotation axis around which the mirror is rotated and a translation path for the rotation axis are provided, to change the curvature of the mirror where the output light is reflected. In other embodiments, a plurality of mirrors have different surface curvatures. A holder has a rotation axis and holds the plurality of mirrors equidistantly from the rotation axis. The holder is rotatable around the rotation axis to bring a different, respective mirror in position to reflect light produced by a VIPA generator back to the VIPA generator. In other embodiments, a rotating mirror is rotatable about a rotation axis to reflect light produced by a VIPA generator to a respective fixed mirror. In still other embodiments, an off-axis parabolic mirror is rotatable about a rotation axis to reflect light produced by a VIPA generator to a respective fixed mirror.

摘要翻译： 虚拟成像的相控阵（VIPA）发生器与反射镜组合以补偿色散的各种配置。 VIPA发电机产生从VIPA发电机运行的光。 在一些实施例中，可变曲率镜被定位成将光反射回VIPA发生器。 提供反射镜绕其旋转的旋转轴线和用于旋转轴线的平移路径，以改变反射镜的输出光反射的曲率。 在其他实施例中，多个反射镜具有不同的表面曲率。 保持器具有旋转轴线并且将多个反射镜从旋转轴线等距离地保持。 保持器可围绕旋转轴线旋转以使不同的相应反射镜处于适当位置，以将由VIPA发生器产生的光反射回VIPA发生器。 在其他实施例中，旋转镜可围绕旋转轴线旋转，以将由VIPA发生器产生的光反射到相应的固定镜。 在另外的其它实施例中，离轴抛物面镜可围绕旋转轴线旋转，以将由VIPA发生器产生的光反射到相应的固定镜。

公开(公告)号：US07171071B2

公开(公告)日：2007-01-30

申请号：US11119731

申请日：2005-05-03

申请人： Masataka Shirasaki

发明人： Masataka Shirasaki

IPC分类号： G02B6/26 ,  G02B6/28

CPC分类号： G02B6/2938 ,  G02B6/293 ,  G02B6/2935 ,  G02B6/29352 ,  G02B6/29386 ,  G02B6/29395 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0221

摘要： An optical wavelength division multiplexed system uses wavelength splitters to split channels included in input light into different paths within the system. Odd-numbered channels are split into one path, and even-numbered channels are split into another path, providing increased isolation between channels. Using filters, the system then drops one or more of the isolated, split channels into paths referred to as dropped paths and allows the remaining channels to continue through the filters into output paths. The dropped paths are then combined into one, common dropped path, and the output paths are also combined into one, common output path.

摘要翻译： 光波分复用系统使用波分复用器将包括在输入光中的信道分成系统内的不同路径。 奇数通道分为一个通道，偶数通道分为另一个通道，提供通道之间增加的隔离。 使用滤波器，系统然后将一个或多个隔离的分离信道丢弃为被称为丢弃路径的路径，并允许剩余信道通过滤波器继续到输出路径。 然后将丢弃的路径组合成一个公共丢弃路径，并且输出路径也被组合成一个公共输出路径。

公开(公告)号：US07158304B2

公开(公告)日：2007-01-02

申请号：US11442257

申请日：2006-05-30

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B27/00

CPC分类号： G02B27/148 ,  G02B5/10 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29392 ,  G02B6/29394 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1006 ,  G02B27/106 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/144 ,  G02B27/145 ,  H04B10/25133

摘要： An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light. The modified cone shape of the mirror can be designed so that the apparatus provides a uniform chromatic dispersion to light in the same channel of a wavelength division multiplexed light.

摘要翻译： 一种用于产生色散的光学装置。 该装置包括虚拟成像的相控阵（VIPA）发生器，反射镜和透镜。 VIPA发生器接收相应波长的输入光，并产生从VIPA发生器沿由输入光的波长确定的方向行进的对准的准直输出光，从而与输入光产生的输出光在空间上区别开 在不同波长的光。 镜子有一个锥形或一个改锥形。 透镜将从VIPA发生器传播的输出光聚焦到镜子上，使镜子反射出输出光。 反射光被透镜引导回到VIPA发生器。 以这种方式，该装置向输入光提供色散。 反射镜的修改锥形可以被设计成使得该装置对波分复用光的相同通道中的光提供均匀的色散。

公开(公告)号：US07075723B2

公开(公告)日：2006-07-11

申请号：US11070670

申请日：2005-03-03

申请人： Masataka Shirasaki ,  Simon Cao

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B27/00

CPC分类号： G02B27/148 ,  G02B5/10 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29392 ,  G02B6/29394 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1006 ,  G02B27/106 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/144 ,  G02B27/145 ,  H04B10/25133

摘要： An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light. The modified cone shape of the mirror can be designed so that the apparatus provides a uniform chromatic dispersion to light in the same channel of a wavelength division multiplexed light.