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1. 发明申请

US20080107379A1 Fiber bragg grating system having a thermo module for supplying or absorbing heat to or from an FBG module 有权
标题翻译：具有用于向FBG模块供应或吸收热量的热模块的光纤布拉格光栅系统
公开(公告)号：US20080107379A1
公开(公告)日：2008-05-08
申请号：US11806915
申请日：2007-06-05
申请人： Shuko Kobayashi , Kensuke Sasaki
发明人： Shuko Kobayashi , Kensuke Sasaki
IPC分类号： G02B6/34
CPC分类号： G02B6/0218
摘要： An FBG system with lower power supplied to a temperature controller, while allowing for precise temperature control of an FBG grating. The FBG system includes a high temperature FBG-mounting structure and a low temperature FBG-mounting structure, and a housing containing them. The high temperature FBG-mounting structure includes an FBG module and a thermo module. The temperature of the FBG in the FBG module may be made higher than the environmental temperature by supplying heat from a heat-conducting portion to the thermo module. The low temperature FBG-mounting structure includes an FBG module and a thermo module. The temperature of the FBG in the latter FBG module may be made lower than the environmental temperature by supplying heat from the latter thermo module to the heat-conducting portion. The FBG-mounting structures are provided in parallel on the inner bottom surface of the heat-conducting portion, part of the housing.
摘要翻译：具有较低功率的FBG系统提供给温度控制器，同时允许对FBG光栅进行精确的温度控制。 FBG系统包括高温FBG安装结构和低温FBG安装结构，以及包含它们的外壳。高温FBG安装结构包括一个FBG模块和一个热模块。 FBG模块中的FBG的温度可以通过从热传导部分向热模块供给热量而使其高于环境温度。低温FBG安装结构包括一个FBG模块和一个热模块。后者的FBG模块中的FBG的温度可以通过将热量从后一个热模块供给到导热部分而低于环境温度。 FBG安装结构平行设置在导热部分的内底面上，即壳体的一部分。

2. 发明申请

US20090257750A1 Optical code division multiplex communication method, system, and module 审中-公开
标题翻译：光码分多址通信方式，系统和模块
公开(公告)号：US20090257750A1
公开(公告)日：2009-10-15
申请号：US12379971
申请日：2009-03-05
申请人： Shuko Kobayashi , Kensuke Sasaki
发明人： Shuko Kobayashi , Kensuke Sasaki
IPC分类号： H04J14/00
CPC分类号： H04J14/005 , H04B1/707 , H04B2201/70715
摘要： An optical communication system uses superstructured fiber Bragg gratings (SSFBGs) to encode and decode an optical pulse signal transmitted between two optical communication devices. Each SSFBG has uniformly spaced fiber Bragg gratings, producing a chip pulse train with a uniform phase difference between chips. The phase difference defines a code. There is one SSFBG at one of the two devices and two or more SSFBGs at the other device, using different codes to encode or decode the same optical signal. Using one code to encode and multiple codes to decode, or multiple codes to encode and one code to decode, provides a high signal-to-noise ratio and permits stable performance despite environmental temperature variations. For bidirectional communication, each communication device has at least three SSFBGs, divided into a transmitting group and a receiving group, mounted on a mounting plate with a negative thermal expansion coefficient.
摘要翻译：光通信系统使用超结构光纤布拉格光栅（SSFBG）来对在两个光通信设备之间传输的光脉冲信号进行编码和解码。每个SSFBG具有均匀间隔的光纤布拉格光栅，产生芯片之间具有均匀相位差的芯片脉冲串。相位差定义一个代码。在两个设备中的一个设备上有一个SSFBG，另一个设备上有两个或更多个SSFBG，使用不同的代码对同一个光信号进行编码或解码。使用一个代码进行编码和多个代码进行解码，或多个代码进行编码，一个代码进行解码，可提供高信噪比，尽管环境温度变化，仍能保持稳定的性能。对于双向通信，每个通信设备具有至少三个SSFBG，分为传输组和接收组，安装在负热膨胀系数的安装板上。

3. 发明授权

US07424226B2 Optical code division multiplexing communication method and system 失效
标题翻译：光码分复用通信方法及系统
公开(公告)号：US07424226B2
公开(公告)日：2008-09-09
申请号：US11185935
申请日：2005-07-21
申请人： Akihiko Nishiki , Kensuke Sasaki , Shuko Kobayashi , Satoko Kutsuzawa
发明人： Akihiko Nishiki , Kensuke Sasaki , Shuko Kobayashi , Satoko Kutsuzawa
IPC分类号： H04J14/02 , H04B10/12 , H04B10/00
CPC分类号： H04J14/005
摘要： An optical code division multiplexing communication method includes the steps of: producing a multi-wavelength optical pulse train from wavelength multiplexing pulse; transmitting the multi-wavelength optical pulse train through a transmission line using a time-spreading/wavelength-hopping method; decoding wavelength multiplexing pulse from the multi-wavelength optical pulse train transmitted through the transmission line; compensating delay time differences between individual optical pulses of the multi-wavelength optical pulse train, the delay time differences occurring in the step of transmitting the multi-wavelength optical pulse train through the transmission line; and compensating optical pulse spread in a time direction, which occurs in each of the optical pulses of the multi-wavelength optical pulse train in the step of transmitting the multi-wavelength optical pulse train through the transmission line.
摘要翻译：光码分复用通信方法包括以下步骤：从波长复用脉冲产生多波长光脉冲串; 使用时间扩展/波长跳跃方法通过传输线传输多波长光脉冲串; 解码通过传输线传输的多波长光脉冲串的波长复用脉冲; 补偿多波长光脉冲序列的各个光脉冲之间的延迟时间差，在通过传输线传输多波长光脉冲串的步骤中发生的延迟时间差; 以及在通过传输线传输多波长光脉冲串的步骤中补偿在多波长光脉冲串的每个光脉冲中发生的时间方向上的光脉冲扩展。

4. 发明申请

US20070058902A1 Optical pulse time spreading device 失效
公开(公告)号：US20070058902A1
公开(公告)日：2007-03-15
申请号：US11520661
申请日：2006-09-14
申请人： Akihiko Nishiki , Kensuke Sasaki , Shuko Kobayashi
发明人： Akihiko Nishiki , Kensuke Sasaki , Shuko Kobayashi
IPC分类号： G02B6/34
CPC分类号： G02B6/2932 , G02B6/02085 , H04J14/005
摘要： The present invention is an SSFBG with which there are few restrictions on the code that can be set and the overall length of which is short. This SSFBG has four unit FBGs the Bragg reflection wavelengths of which are λ1, λ2, λ3, and λ4 disposed with a part where the unit FBGs overlap one another in the waveguide direction of the optical fiber. The left end of the horizontal axis corresponds to the position of the I/O terminal of the SSFBG and the right end of the horizontal axis corresponds to the terminal on the opposite side from the I/O terminal of the SSFBG. The Bragg reflection wavelengths λ1, λ2, λ3, and λ4 of the four unit FBGs are λ1=1543.28 nm, λ2=1543.60 nm, λ3=1543.92 nm, and λ4=1544.24 nm respectively. Codes (λ1, λ2, λ3, and λ4) used in the time-spreading/wavelength hopping system are established for the SSFBG by disposing the four unit FBGs at equal intervals such that the interval therebetween is 12.8 mm.

5. 发明申请

US20100221010A1 Encoding-decoding method, optical pulse time spreading apparatus, optical add-drop-multiplexer, and optical communication system 有权
标题翻译：编码解码方法，光脉冲时间扩展装置，光分插复用器和光通信系统
公开(公告)号：US20100221010A1
公开(公告)日：2010-09-02
申请号：US12656296
申请日：2010-01-25
申请人： Kensuke Sasaki , Shuko Kobayashi
发明人： Kensuke Sasaki , Shuko Kobayashi
IPC分类号： H04J14/00 , H04J4/00
CPC分类号： H04J14/005 , H04J14/0201
摘要： An optical pulse time spreading apparatus wherein an optical splitter divides an input optical pulse into first to U-th input optical pulses; first to U-th optical pulse time spreaders respectively have the first to U-th input optical pulses input thereto and output first to U-th chip pulse sequences each consisting of N chip pulses from a first to an N-th chip pulse arranged in order on a time axis into which the input optical pulse is time-spread; and an interval between adjacent ones of unit FBGs arranged in a p-th optical pulse time spreader and a Bragg reflection wavelength of the unit FBGs in the p-th optical pulse time spreader are set such that spectra of the first to U-th chip pulse sequences are different from each other.
摘要翻译：一种光脉冲时间扩展装置，其中光分路器将输入光脉冲分为第一至第U输入光脉冲; 第一到第U个光脉冲时间扩展器分别具有输入到其中的第一至第U输入光脉冲，并且输出第一至第U个码片脉冲序列，每个码片脉冲序列由N个码片脉冲组成，从第一至第N码片脉冲排列在时间轴上输入光脉冲时间扩展的顺序; 并且布置在第p个光脉冲时间扩展器中的相邻单元FBG之间的间隔和第p个光脉冲时间扩展器中的单位FBG的布拉格反射波长被设置为使得第一至第U芯片脉冲序列彼此不同。

6. 发明申请

US20100215370A1 OPTICAL CODE DIVISION MULTIPLEX SIGNAL GENERATOR 失效
标题翻译：光学代码段多重信号发生器
公开(公告)号：US20100215370A1
公开(公告)日：2010-08-26
申请号：US12695523
申请日：2010-01-28
申请人： Shuko KOBAYASHI , Kensuke Sasaki
发明人： Shuko KOBAYASHI , Kensuke Sasaki
IPC分类号： H04J14/00
CPC分类号： H04J14/005 , H04B10/516
摘要： An optical code division multiplexing signal generator provided with an optical pulse light source, a first encoder to an Nth encoder, a first optical modulator to an Nth optical modulator, and a first optical circulator to an Nth optical circulator. The first optical circulator inputs an input optical pulse train to a first encoder, and inputs a first encoded optical pulse train output by Bragg reflection from the first encoder to the first optical modulator. The kth optical circulator inputs an input (k−1)th optical pulse train which has passed through the (k−1)th encoder to a kth encoder, and inputs a kth encoded optical pulse train output by Bragg reflection from the kth encoder to the kth optical modulator. Herein k takes all integers from 2 to N, and N is a positive integer of 2 or more.
摘要翻译：具有光脉冲光源的光码分复用信号发生器，第N编码器的第一编码器，第N光调制器的第一光调制器，第N光循环器的第一光循环器。第一光循环器将输入光脉冲串输入到第一编码器，并且通过布拉格反射将第一编码光脉冲串输出从第一编码器输入到第一光调制器。第k个光循环器将已经通过第（k-1）个编码器的输入（k-1）光脉冲串输入第k个编码器，并通过布拉格反射从第k个编码器输入第k个编码的光脉冲串，第k个光调制器。这里k取从2到N的所有整数，N是2或更大的正整数。

7. 发明申请

US20070092182A1 Wavelength tuning device and wavelength tuning method 失效
标题翻译：波长调谐装置和波长调谐方法
公开(公告)号：US20070092182A1
公开(公告)日：2007-04-26
申请号：US11543211
申请日：2006-10-05
申请人： Shuko Kobayashi , Kensuke Sasaki
发明人： Shuko Kobayashi , Kensuke Sasaki
IPC分类号： G02B6/34
CPC分类号： G02B6/02209 , G02B6/02204
摘要： A wavelength tuning device of the invention tunes the reflected wavelength of a fiber Bragg grating, and includes: an optical fiber (102) in which a fiber Bragg grating (106) is formed; a base member (104) to which the optical fiber (102 is fixed; a first temperature sensor (112) that detects a temperature of the base member (104); a thermo-module (116) that adjust the temperature of the base member (104) such that the temperature detected by the first temperature sensor (112) is maintained at a desired temperature; a second temperature sensor (126) that detects an external temperature of the wavelength tuning device; and a temperature controller (130) that controls the thermo-module (116) such that the temperature of the base member (104) is maintained at the desired temperature based on the external temperature detected by the second temperature sensor (126).
摘要翻译：本发明的波长调谐装置调谐光纤布拉格光栅的反射波长，并包括：形成光纤布拉格光栅（106）的光纤（102）; 固定有光纤（102）的基座部件（104），检测基体部件（104）的温度的第一温度传感器（112）;调节基体部件（104），使得由第一温度传感器（112）检测的温度保持在期望温度;第二温度传感器（126），其检测波长调谐装置的外部温度;以及温度控制器（130），其控制所述热模块（116）使得所述基座部件（104）的温度基于由所述第二温度传感器（126）检测到的外部温度而保持在所需温度。

8. 发明申请

US20090317034A1 Optical pulse time spreading device for spreading light pulse over time axis 审中-公开
标题翻译：光脉冲时间扩展装置，用于在时间轴上扩展光脉冲
公开(公告)号：US20090317034A1
公开(公告)日：2009-12-24
申请号：US12457681
申请日：2009-06-18
申请人： Kensuke Sasaki , Shuko Kobayashi
发明人： Kensuke Sasaki , Shuko Kobayashi
IPC分类号： G02B6/34
CPC分类号： H04J14/005
摘要： An optical pulse time spreading device includes an optical fiber and a superstructured fiber Bragg grating (SSFBG) formed in the optical fiber. The SSFBG includes unit fiber Bragg gratings (FBGs) having the effective refractive index of the optical fiber periodically varying in the longitudinal direction of the fiber, and phase shifters having a constant effective refractive index. Each unit FBG is arranged between the adjacent phase shifters in the longitudinal direction. The unit FBG having its unit grating length in the longitudinal direction shorter than the unit segment length which is the distance between the unit FBGs next to each other. The optical pulse time spreading device provides the peak intensity of the autocorrelation wave less dependent on a code used for encoding and decoding.
摘要翻译：光脉冲时间扩展装置包括在光纤中形成的光纤和超结构光纤布拉格光栅（SSFBG）。 SSFBG包括具有在光纤的纵向上周期性变化的光纤的有效折射率的单位光纤布拉格光栅（FBG）和具有恒定有效折射率的移相器。每个单元FBG在纵向方向上布置在相邻移相器之间。单元FBG的长度方向上的单位光栅长度短于单位片段长度，单位片段长度是彼此相邻的单位FBG之间的距离。光脉冲时间扩展装置提供自相关波的峰值强度较小取决于用于编码和解码的码。

9. 发明申请

US20090175621A1 Optical code division multiplexing module and method 审中-公开
标题翻译：光码分多路复用模块及方法
公开(公告)号：US20090175621A1
公开(公告)日：2009-07-09
申请号：US12292388
申请日：2008-11-18
申请人： Shuko Kobayashi , Satoko Katsuzawa , Kensuke Sasaki
发明人： Shuko Kobayashi , Satoko Katsuzawa , Kensuke Sasaki
IPC分类号： H04J14/00 , G02B26/00
CPC分类号： H04J14/005 , H04J14/02
摘要： An optical code division multiplexing module includes a superstructured fiber Bragg grating having equally spaced unit fiber Bragg gratings that convert an optical pulse into an optical chip train with equal inter-chip phase differences. A thermo-module heats or cools the mounting plate to which the superstructured fiber Bragg grating is secured. A temperature sensor measures the temperature of the mounting plate, and a temperature controller adjusts the temperature, thereby adjusting the inter-chip phase difference. The optical code division multiplexing module can be used for both coding and decoding. The inter-chip phase difference defines the code. Operation is stable despite environmental variations, and the code can be changed by changing the temperature setting, without replacement of any physical parts.
摘要翻译：光码分复用模块包括具有等间隔单位光纤布拉格光栅的超结构光纤布拉格光栅，其将光脉冲转换成具有相同芯片间相位差的光学芯片组。热模块加热或冷却超结构化光纤布拉格光栅固定到的安装板。温度传感器测量安装板的温度，温度控制器调节温度，从而调节芯片间的相位差。光码分复用模块可以用于编码和解码。芯片间相位差定义了代码。尽管环境变化，操作稳定，可以通过更改温度设置来更改代码，而不需要更换任何物理部件。

10. 发明授权

US07440656B2 Optical pulse time spreader 失效
公开(公告)号：US07440656B2
公开(公告)日：2008-10-21
申请号：US11783676
申请日：2007-04-11
申请人： Kensuke Sasaki , Shuko Kobayashi
发明人： Kensuke Sasaki , Shuko Kobayashi
IPC分类号： G02B6/34
CPC分类号： G02B6/02085 , G02B6/2932 , G02B6/29392 , H04J14/005
摘要： An optical pulse time spreader which can generate a chip pulse string of which intensity is equalized. The reflectances R1, R2 and Rk of the first, second and k-th (k is an integer which satisfies 3≦k≦J) unit FBG are given by the following formulae respectively. R1=Pc(constant) (a) R2=Pc/(1−R1)2 (b) Rk=(Pc1/2−Pk1/2)2/{(1−R1)2·(1−R2)2 . . . (1−Rk-1)2} (c-1) Rk=(Pc1/2+Pk1/2)2/{(1−R1)2 ·(1−R2)2 . . . (1−Rk-1)2} (c-2) Here Pc is an arbitrary constant, and Pk is an intensity of a triple reflection chip pulse which is output for the k-th time. The formulae (c-1) and (c-2) are the reflectance of the k-th unit diffraction grating when the phase difference between the single reflection chip pulse, which is output for the k-th time, and the triple reflection chip pulse, which is output for the k-th time, is 0 and π respectively.

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