公开(公告)号：US20050089328A1

公开(公告)日：2005-04-28

申请号：US10716709

申请日：2003-11-20

申请人： Akihiko Nishiki ,  Saeko Oshiba

发明人： Akihiko Nishiki ,  Saeko Oshiba

IPC分类号： H04B10/13 ,  H04J14/00 ,  H04J4/00

CPC分类号： H04J14/005

摘要： An optical signal encoder/decoder includes a grating waveguide having an identical number of uniform pitch gratings to the number of code chips of a binary phase optical code, the uniform pitch gratings being formed in a waveguide direction to reflect light of a predetermined wavelength. Here, adjacent gratings corresponding to a position at which the optical code value changes are disposed a spacing apart from each other to give a phase shift of (2m+1)π/2 to the light, and the remaining adjacent gratings are disposed a spacing apart from each other to give a phase shift of nπ to the light (m, n: integer).

摘要翻译： 光信号编码器/解码器包括具有相同数量的均匀间距光栅到二进制相位光码的码片数量的光栅波导，均匀间距光栅在波导方向上形成以反射预定波长的光。 这里，与光码值变化的位置对应的相邻光栅配置成彼此分开的间隔，以向光提供（2m + 1）pi / 2的相移，并且剩余的相邻光栅被布置成间隔 相互之间给出npi相对于光（m，n：整数）的相移。

公开(公告)号：US07174103B2

公开(公告)日：2007-02-06

申请号：US10716709

申请日：2003-11-20

申请人： Akihiko Nishiki ,  Saeko Oshiba

发明人： Akihiko Nishiki ,  Saeko Oshiba

IPC分类号： H04J14/00

CPC分类号： H04J14/005

摘要： An optical signal encoder/decoder includes a grating waveguide having an identical number of uniform pitch gratings to the number of code chips of a binary phase optical code, the uniform pitch gratings being formed in a waveguide direction to reflect light of a predetermined wavelength. Here, adjacent gratings corresponding to a position at which the optical code value changes are disposed a spacing apart from each other to give a phase shift of (2m+1)π/2 to the light, and the remaining adjacent gratings are disposed a spacing apart from each other to give a phase shift of nπ to the light (m, n: integer).

摘要翻译： 光信号编码器/解码器包括具有相同数量的均匀间距光栅到二进制相位光码的码片数目的光栅波导，均匀间距光栅在波导方向上形成以反射预定波长的光。 这里，与光码值变化的位置对应的相邻光栅配置成彼此分开的间隔，以向光提供（2m + 1）pi / 2的相移，并且剩余的相邻光栅被布置成间隔 相互之间给出npi相对于光（m，n：整数）的相移。

公开(公告)号：US5636045A

公开(公告)日：1997-06-03

申请号：US489939

申请日：1995-06-13

申请人： Hideaki Okayama ,  Masato Kawahara ,  Saeko Oshiba ,  Yoshio Kawai

发明人： Hideaki Okayama ,  Masato Kawahara ,  Saeko Oshiba ,  Yoshio Kawai

IPC分类号： H04B10/27 ,  H04B10/524 ,  H04B10/572 ,  H04B10/58 ,  H04J14/08 ,  H04Q3/52 ,  H04Q11/00 ,  H04Q11/02 ,  H04B10/20

CPC分类号： H04J14/08 ,  H04Q11/0003 ,  H04Q11/0066 ,  H04Q2011/0015 ,  H04Q2011/002 ,  H04Q2011/0045

摘要： A photonic switching method and a photonic switch utilizing the method are disclosed. Input electrical signals Ea.about.Ed are input through plural input ports 21a.about.21d are converted into optical signals with the pulse intervals of these input electrical signals being preserved unchanged. The converted optical signals are timing adjusted within the pulse interval and multiplexed in such a manner that these optical signals do not overlap with each other on the time axis. The resulting multiplexed optical signals are transferred to output ports 19a.about.19d. An optical signal, from among the multiplexed optical signals, which should be output at a target output port is separated by utilizing a mutual optical interactional function, for example, a four optical wave mixture.

摘要翻译： 公开了一种利用该方法的光子切换方法和光子开关。 输入电信号通过多个输入端口21a输入差分输入21D被转换为光信号，这些输入电信号的脉冲间隔保持不变。 转换的光信号在脉冲间隔内进行定时调整，并以这些光信号在时间轴上彼此不重叠的方式多路复用。 所产生的复用光信号被传送到输出端口19a差分19d。 应当在目标输出端口输出的多路复用光信号中的光信号通过利用相互光学相互作用功能例如四个光波混合来分离。

公开(公告)号：US07034988B2

公开(公告)日：2006-04-25

申请号：US10767266

申请日：2004-01-30

申请人： Hideaki Tamai ,  Saeko Oshiba

发明人： Hideaki Tamai ,  Saeko Oshiba

IPC分类号： G02F2/02 ,  G02B6/34

CPC分类号： G02B6/29376 ,  G02F1/353

摘要： A feature of a wavelength conversion device of this invention is the board range of selection of wavelengths which can be obtained by conversion. A wavelength conversion device of this invention comprises an SC light generation portion 12, which receives an excitation light pulse output from an excitation light pulse source and generates SC light, and an optical wavelength filter 14 which filters the SC light. An excitation light pulse source generates an excitation light pulse, of central wavelength λS. When the excitation light pulse generated by the excitation light pulse source is incident on the SC medium, SC light having a flat spectral shape over the range from wavelength λL to wavelength λH (where λL

公开(公告)号：US07333729B2

公开(公告)日：2008-02-19

申请号：US10673441

申请日：2003-09-30

申请人： Naoki Minato ,  Satoko Kutsuzawa ,  Saeko Oshiba

发明人： Naoki Minato ,  Satoko Kutsuzawa ,  Saeko Oshiba

IPC分类号： H04J14/02 ,  H04J14/08 ,  H04B10/00

CPC分类号： H04B10/25133 ,  H04B10/2503 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/258

摘要： To resolve problems, with the invention, an optical transmitter comprises an encoder for generating an optical signal obtained by encoding multi-wavelength pulses corresponding to sending data by use of a method of time spread/wavelength hopping in accordance with an encoding pattern of the encoder itself. The encoder concurrently executes time delay for every wavelength component at encoding, and time delay due to pre-compensation processing to pre-compensate for difference in propagation time for every wavelength component, occurring due to chromatic dispersion characteristics of a transmission line by α%. An optical receiver comprises a decoder for decoding the optical signal transmitted by the optical transmitter in accordance with a decoding pattern of the decoder itself. The decoder concurrently executes time delay for every wavelength component at decoding, and time delay due to dispersion equalization processing to compensate for difference in propagation time for every wavelength component, occurring due to chromatic dispersion characteristics of the transmission line by β%.

摘要翻译： 为了解决问题，通过本发明，光发射机包括编码器，用于通过使用根据编码器的编码模式的时间扩展/波长跳变方法生成对应于发送数据的多波长脉冲而获得的光信号 本身。 编码器同时对编码时的每个波长分量执行时间延迟，并且由于预补偿处理而导致的时间延迟，以对由于传输线的色散特性由α％引起的每个波长分量的传播时间差进行预补偿。 光接收机包括：解码器，用于根据解码器本身的解码模式对由光发射机发送的光信号进行解码。 解码器在解码时同时执行每个波长分量的时间延迟，并且由于色散均衡处理而导致的时间延迟，以补偿由于传输线的色散特性由β％引起的每个波长分量的传播时间差。

公开(公告)号：US06246709B1

公开(公告)日：2001-06-12

申请号：US09087907

申请日：1998-06-01

申请人： Saeko Oshiba ,  Koji Nakamura ,  Hideaki Horikawa

发明人： Saeko Oshiba ,  Koji Nakamura ,  Hideaki Horikawa

IPC分类号： H01S500

CPC分类号： H01S5/026 ,  H01S5/0265 ,  H01S5/06226 ,  H01S5/1064

摘要： In a modulator integrated laser 100, a wave guide channel 200a in a modulator area 200 having a core constituted of an absorption layer 204 and a wave guide channel 250a at a laser area 250 having a core constituted of an active layer 254 are optically connected with each other by a wave guide channel 150a having a core constituted of a light wave guide layer 204b. The width of the light wave guide layer 204b increases in a continuous manner as the distance from the modulator area 200 increases and the width also increases in a continuous manner as the distance from the laser area 250 increases, with the width achieving its maximum in the vicinity of the middle area between the modulator area 200 and the laser area 250.

摘要翻译： 在调制器集成激光器100中，在具有由有源层254构成的核的激光区域250处的由吸收层204和波导通道250a构成的芯的调制器区域200中的波导通道200a与 彼此通过具有由光波导层204b构成的芯的波导通道150a。 随着距离调制器区域200的距离增加，光波导层204b的宽度以连续的方式增加，随着距离激光区域250的距离的增加，宽度也以 调制器区域200与激光区域250之间的中间区域的附近。

公开(公告)号：US5233620A

公开(公告)日：1993-08-03

申请号：US750637

申请日：1991-08-27

申请人： Keisuke Shinozaki ,  Saeko Oshiba ,  Takeshi Kamijoh

发明人： Keisuke Shinozaki ,  Saeko Oshiba ,  Takeshi Kamijoh

IPC分类号： G02F1/37 ,  H01S3/109 ,  H01S5/14

CPC分类号： H01S3/109 ,  H01S5/141

摘要： A second-harmonic generating device includes a laser diode for providing light of a fundamental wave, having end-facets at least one being an antireflection coated end-facet. An optical reflector forms an external resonator with one of the end-facets of the laser diode whereby a portion of the light from the laser diode is returned by the reflector to the laser diode. A second-harmonic generation element is disposed between the laser diode and the optical reflector, for producing a second-harmonic of the fundamental wave while the fundamental wave propagates in the second-harmonic generation element. In this way, the optical reflector determines the wavelength of the light of the fundamental wave so that the laser diode produces light with a wavelength satisfying a phase matching condition of the second-harmonic generation element.