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1. 发明授权

US07193778B2 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion 有权
标题翻译：使用虚拟成像的相控阵列产生色散的光学装置
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。

2. 发明授权

US06343866B1 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion 有权
标题翻译：使用虚拟成像的相控阵列产生色散的光学装置
公开(公告)号：US06343866B1
公开(公告)日：2002-02-05
申请号：US09727450
申请日：2000-12-04
申请人： Simon Xiaofan Cao , Masataka Shirasaki
发明人： Simon Xiaofan Cao , Masataka Shirasaki
IPC分类号： G02B510
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。

3. 发明授权

US06786611B2 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion 失效
标题翻译：使用虚拟成像的相控阵列产生色散的光学装置
公开(公告)号：US06786611B2
公开(公告)日：2004-09-07
申请号：US10252389
申请日：2002-09-24
申请人： Simon Xiaofan Cao , Masataka Shirasaki
发明人： Simon Xiaofan Cao , Masataka Shirasaki
IPC分类号： G02B510
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。

4. 发明授权

US06481861B2 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion 有权
公开(公告)号：US06481861B2
公开(公告)日：2002-11-19
申请号：US10021086
申请日：2001-12-19
申请人： Simon Xiaofan Cao , Masataka Shirasaki
发明人： Simon Xiaofan Cao , Masataka Shirasaki
IPC分类号： G02B510
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.

5. 发明授权

US06390633B1 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion 有权
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.

6. 发明授权

US06317526B1 Optical phase controller and optical switch 有权
标题翻译：光相位控制器和光开关
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。

7. 发明授权

US06185040B2 Virtually imaged phased array (VIPA) having spacer element and optical length adjusting element 有权
标题翻译：具有间隔元件和光学长度调节元件的几乎成像的相控阵列（VIPA）
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。

8. 发明授权

US6144494A Virtually imaged phased array (VIPA) having spacer element and optical length adjusting element 有权
标题翻译：具有间隔元件和光学长度调节元件的几乎成像的相控阵列（VIPA）
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。

9. 发明授权

US5073331A Modulation method for use in a semiconductor laser and an apparatus therefor 失效
标题翻译：用于半导体激光器的调制方法及其装置
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。

10. 发明申请

US20060210283A1 TRANSMITTERS FOR INVERSELY DISPERSED OPTICAL SIGNALS 审中-公开
标题翻译：用于反向分散光信号的发射机
公开(公告)号：US20060210283A1
公开(公告)日：2006-09-21
申请号：US11162683
申请日：2005-09-19
申请人： Masataka Shirasaki
发明人： Masataka Shirasaki
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/5053 , H04B10/508
摘要： Transmitters for generating inversely dispersed optical signals to counter chromatic dispersion in optical fibers carrying the optical signals are presented. The transmitters have optical pulse generators which generate in parallel inversely dispersed optical pulses which are combined for output into an optical fiber. Different designs with simple modulators can be used for the optical pulse generator
摘要翻译：提出了用于产生反向分散的光信号以反映携带光信号的光纤中的色散的发射机。发射机具有光脉冲发生器，其产生并联的反分散光脉冲，其被组合以输出到光纤中。具有简单调制器的不同设计可用于光脉冲发生器

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