-
公开(公告)号：US20110236033A1
公开(公告)日：2011-09-29
申请号：US13131524
申请日：2009-11-16
Applicant: Nobuhiko Kikuchi
Inventor： Nobuhiko Kikuchi
Abstract: It is provided an optical field transmitter comprising a light source, one or more DA converters, an optical field modulator, a complex information multilevel signal generator circuit, and a phase pre-integration circuit. The optical field modulator modulates light output from the light source into a optical field signal by using the analog signal converted from a complex multilevel information signal including phase pre-integration complex information by the one or more DA converters. A phase angle of the complex multilevel information signal at a complex signal point is any one of values of integral multiples obtained by dividing 360 degrees by a positive integer N. An amplitude value of the complex multilevel information signal at the complex signal point is any one of values of a positive integer M. A total number of the complex signal points which may be taken is lower than a product of N and M.
Abstract translation: 提供了一种包括光源，一个或多个DA转换器，光场调制器，复信息多电平信号发生器电路和相位预积分电路的光场发射器。 光场调制器通过使用由一个或多个DA转换器包括相位预积分复合信息的复数多级信息信号转换的模拟信号，将从光源输出的光调制成光场信号。 复信号点处的复数多级信息信号的相位角是通过将360度除以正整数N而获得的积分倍数的值中的任何一个。复信号点处的复数多级信息信号的振幅值是任何一个 正整数M的值。可以采取的复信号点的总数小于N和M的乘积。
-
公开(公告)号：US07978390B2
公开(公告)日：2011-07-12
申请号：US12438558
申请日：2007-01-11
Applicant: Nobuhiko Kikuchi
Inventor： Nobuhiko Kikuchi
IPC: G02F1/225
CPC classification number: G02F1/225 , G02F2001/212 , H04B10/505 , H04B10/5167 , H04B10/541 , H04B10/548
Abstract: The present invention relates to an optical modulator that generates quaternary amplitude modulated light without inter-symbol-interference by splitting input light into three optical paths, generating a continuous wave signal in a first optical path, generating binary phase modulated lights using a single drive MZ type optical phase modulator in second and third optical paths, and interfering them at in-phase and at field amplitude 1:a:b.
Abstract translation: 光调制器技术领域本发明涉及一种光调制器，其通过将输入光分成三个光路而产生四分之一幅调制光，而不产生符号间干扰，在第一光路中产生连续波信号，使用单个驱动器MZ产生二进制相位调制光 在第二和第三光路中的光学相位调制器，并以同相和场振幅1：a：b干扰它们。
-
公开(公告)号：US07903975B2
公开(公告)日：2011-03-08
申请号：US10888016
申请日：2004-07-12
Applicant: Shinya Sasaki , Nobuhiko Kikuchi , Kenro Sekine
Inventor： Shinya Sasaki , Nobuhiko Kikuchi , Kenro Sekine
IPC: H04J14/02
CPC classification number: H04J14/0216 , H04J14/0212 , H04J14/0217
Abstract: A problem to be solved in an optical communication system for carrying out bidirectional transmission between communication nodes by wavelength-division-multiplexed optical signals is that a plurality of optical add-drop multiplexers installed in the communication nodes are required for each transmission direction, and therefore, the communication cost is increased. An optical circulator or an optical coupler is arranged at an input/output port of the optical add-drop multiplexer and the wavelength-division-multiplexed optical signals are assembled for each transmission direction, whereby optical signals transmitted bidirectionally can be handled by one optical add-drop multiplexer.
Abstract translation: 用于通过波分复用光信号在通信节点之间进行双向传输的光通信系统中要解决的问题在于，每个传输方向都需要安装在通信节点中的多个光分插复用器，因此 通信成本增加。 在光分插复用器的输入/输出端口处设置光环行器或光耦合器，并且为每个传输方向组合波分复用光信号，由此双向传输的光信号可以通过一个光学加法 - 多路复用器
-
公开(公告)号：US07813655B2
公开(公告)日：2010-10-12
申请号：US10557613
申请日：2003-12-16
Applicant: Nobuhiko Kikuchi , Shigenori Hayase
Inventor： Nobuhiko Kikuchi , Shigenori Hayase
IPC: H04B10/00
CPC classification number: H04B10/2507
Abstract: The waveform deterioration detection range is broadened and multi bit rates can be handled. A chromatic dispersion compensator (or polarization mode dispersion compensator) (102) receives a waveform-deteriorated NRZ optical signal entered through an input fiber (101) and compensates it. On the other hand, an optical detector (106) receives part of output light and a sampling circuit (A/D converter) (107) performs asynchronous sampling of received waveform intensity. A control circuit (110) calculates the nth even moment (n is 4 or more) from an obtained waveform amplitude histogram and performs control to minimize its value.
Abstract translation: 波形恶化检测范围扩大，可以处理多位速率。 色散补偿器（或偏振模色散补偿器）（102）接收通过输入光纤（101）输入的波形恶化的NRZ光信号并对其进行补偿。 另一方面，光检测器（106）接收输出光的一部分，采样电路（A / D转换器）（107）对接收到的波形强度进行异步采样。 控制电路（110）根据得到的波形幅度直方图计算第n个偶数（n为4以上），进行控制使其值最小化。
-
公开(公告)号：US07653311B2
公开(公告)日：2010-01-26
申请号：US10913432
申请日：2004-08-09
Applicant: Nobuhiko Kikuchi , Kenro Sekine , Shinya Sasaki
Inventor： Nobuhiko Kikuchi , Kenro Sekine , Shinya Sasaki
IPC: H04J14/02
CPC classification number: H04J14/021 , H04J14/0212 , H04J14/0221 , H04J14/0227
Abstract: Part of an inputted optical add signal 118 is reflected by a mirror 117, and is thereby inputted into an optical wavelength multiplexer 105 in the reverse direction so that the optical add signal is returned to paths 115-1 through 115-16 corresponding to wavelengths λ1 through λ16. If the returned optical add signal is an optical add signal having a correct wavelength, the optical signal enters its corresponding backward direction optical detector 113-16. Accordingly, it is possible to check whether or not a wavelength of the optical add signal is correct.
Abstract translation: 输入的光学加法信号118的一部分由反射镜117反射，从而以相反方向输入到光学波长多路复用器105中，使得光学加法信号返回到对应于波长λ1的路径115-1至115-16 通过lambda16。 如果返回的光学加法信号是具有正确波长的光学加法信号，则光信号进入其对应的反向光学检测器113-16。 因此，可以检查光学加法信号的波长是否正确。
-
Patent Agency Ranking
公开(公告)号：US20090324247A1
公开(公告)日：2009-12-31
申请号：US12438558
申请日：2007-01-11
Applicant: Nobuhiko Kikuchi
Inventor： Nobuhiko Kikuchi
IPC: H04B10/00
CPC classification number: G02F1/225 , G02F2001/212 , H04B10/505 , H04B10/5167 , H04B10/541 , H04B10/548
Abstract: The present invention relates to an optical modulator that generates quaternary amplitude modulated light without inter-symbol-interference by splitting input light into three optical paths, generating a continuous wave signal in a first optical path, generating binary phase modulated lights using a single drive MZ type optical phase modulator in second and third optical paths, and interfering them at in-phase and at field amplitude 1:a:b.
Abstract translation: 光调制器技术领域本发明涉及一种光调制器，其通过将输入光分成三个光路而产生四分之一幅调制光，而不产生符号间干扰，在第一光路中产生连续波信号，使用单个驱动器MZ产生二进制相位调制光 在第二和第三光路中的光学相位调制器，并以同相和场振幅1：a：b干扰它们。
-
公开(公告)号：US20070065162A1
公开(公告)日：2007-03-22
申请号：US10557613
申请日：2003-12-16
Applicant: Nobuhiko Kikuchi
Inventor： Nobuhiko Kikuchi
IPC: H04B10/06
CPC classification number: H04B10/2507
Abstract: The waveform deterioration detection range is broadened and multi bit rates can be handled. A chromatic dispersion compensator (or polarization mode dispersion compensator) (102) receives a waveform-deteriorated NRZ optical signal entered through an input fiber (101) and compensates it. On the other hand, an optical detector (106) receives part of output light and a sampling circuit (A/D converter) (107) performs asynchronous sampling of received waveform intensity. A control circuit (110) calculates the nth even moment (n is 4 or more) from an obtained waveform amplitude histogram and performs control to minimize its value.
Abstract translation: 波形恶化检测范围扩大，可以处理多位速率。 色散补偿器（或偏振模色散补偿器）（102）接收通过输入光纤（101）输入的波形恶化的NRZ光信号并对其进行补偿。 另一方面，光检测器（106）接收输出光的一部分，采样电路（A / D转换器）（107）对接收到的波形强度进行异步采样。 控制电路（110）根据得到的波形幅度直方图计算第n个偶数（n为4以上），进行控制使其值最小化。
-
48.发明申请公开(公告)号：US20060171717A1
公开(公告)日：2006-08-03
申请号：US11200036
申请日：2005-08-10
Applicant: Nobuhiko Kikuchi
Inventor： Nobuhiko Kikuchi
IPC: H04J14/02
CPC classification number: H04J14/0295 , H04J14/0206 , H04J14/0212 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/0294
Abstract: Heretofore, it was necessary to individually locate an optical switch, an optical switch control circuit, and the like, before and after an optical transceiver that performs optical protection. As a result, costs and the space for implementation increase, and a delay in services is also caused, which were the problems. For the purpose of solving the above problems, the present invention provides a simple optical protection method used in an optical add-drop multiplexer. Add switches 105-1 through 105-N and drop switches 103-1 through 103-N for optical signals corresponding to each wavelength in an optical add-drop multiplexer 100 are made controllable independently of one another. Add switches and drop switches of the active-side and backup-side optical add-drop multiplexers are switched by optical switch control circuits 106-1 through 106-N respectively to make a detour around a failure so that the optical protection is achieved.
Abstract translation: 迄今为止，在执行光学保护的光收发器之前和之后，需要单独定位光开关，光开关控制电路等。 因此，成本和实施空间有所增加，服务延迟也是一个问题。 为了解决上述问题，本发明提供了一种在光分插复用器中使用的简单光保护方法。 对于与光分插复用器100中的每个波长相对应的光信号，加上开关105-1至105-N和下拉开关103-1至103-N可互相独立地控制。 通过光开关控制电路106-1至106-N分别切换有源侧和备用侧光分插复用器的开关和分接开关，绕绕故障绕行，从而实现光保护。
-
公开(公告)号：US06850663B2
公开(公告)日：2005-02-01
申请号：US10382920
申请日：2003-03-07
Applicant: Nobuhiko Kikuchi , Shinya Sasaki
Inventor： Nobuhiko Kikuchi , Shinya Sasaki
CPC classification number: H04J14/0213 , H04J14/02 , H04J14/0201 , H04J14/0209 , H04J14/0212 , H04L25/14
Abstract: A transponder which may form part of communication device such as an optical transmitters device includes an optical receiver for receiving a high speed optical information signal and for converting the high speed optical information signal to an electrical signal, a demultiplexing circuit for separating the electrical signal into a plurality of low speed information signals, a plurality of optical transmitters each of which converts one of the low speed electrical signals into an optical signal of mutually different wavelengths, and a propagation delay difference compensating circuit. The propagation delay difference compensating circuit is provided between the demultiplexing circuit and the plurality of optical transmitters and compensates mutual propagation delay differences of each of the optical signals outputted from the optical transmitters.
Abstract translation: 可以形成诸如光发射机设备的通信设备的一部分的应答器包括用于接收高速光信息信号并将高速光信息信号转换为电信号的光接收机，用于将电信号分离成的解复用电路 多个低速信息信号，多个光发射机，每个光发射机将低速电信号中的一个转换为相互不同波长的光信号，以及传播延迟差补偿电路。 传播延迟差补偿电路设置在解复用电路和多个光发射机之间，并补偿从光发射机输出的每个光信号的相互传播延迟差。
-
50.发明授权公开(公告)号：US06587260B2
公开(公告)日：2003-07-01
申请号：US09935543
申请日：2001-08-24
Applicant: Nobuhiko Kikuchi , Ryoji Takeyari
Inventor： Nobuhiko Kikuchi , Ryoji Takeyari
IPC: H01S330
CPC classification number: H04B10/291 , H01S3/06754 , H01S3/302 , H01S5/50 , H01S2301/04
Abstract: A method for enabling a pump laser to be added on by means of an optical fiber Raman amplifier and reducing signal degradation to be caused by a gain change to occur after and in the pump laser source add-on process. The above method is achieved as follows. Add-on ports 114-1 and 114-2 are provided in a wavelenth multiplexer 110 so as to enable new wavelength pump laser sources to be added on. When an add-on pump laser source 112 is turned on, the output intensity of each of the pre-installed Raman pump lasers 111-1 and 111-2 changes, thereby the intensity of each signal laser in each pre-installed band is kept unchanged before and after the add-on. The output intensity of each pump laser source that increases/decreases the output, for example, during the add-on is changed linearly with time, thereby the transient gain changes in the pre-installed bands are prevented.
Abstract translation: 一种能够通过光纤拉曼放大器添加泵浦激光器的方法，并且由于在泵浦激光源附加过程之后和之后发生的增益变化引起的信号劣化降低。上述方法实现为 如下。 附加端口114-1和114-2设置在波形多路复用器110中，以便能够添加新的波长泵浦激光源。 当附加泵浦激光源112接通时，预先安装的每个拉曼激光器111-1和111-2的输出强度发生变化，从而保持每个预先安装的带中的每个信号激光的强度 前后不变。 增加/减少输出的每个泵激光源的输出强度例如在附加期间随时间线性地改变，从而防止了预先安装的带中的瞬态增益变化。
-
-
-
-
-
-
-
-
-
Search Results
50
records
(took 0.028 seconds)
