公开(公告)号：US06865348B2

公开(公告)日：2005-03-08

申请号：US09793954

申请日：2001-02-28

申请人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

发明人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

IPC分类号： H04B10/50 ,  H04B10/508 ,  H04B10/04 ,  H04B10/12

CPC分类号： H04B10/5055 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/508

摘要： A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal and generating an optical pulse signal having two longitudinal modes, the frequency interval thereof being n×B, n being a natural number and B being a transmission speed; generating a partial response signal by converting a binary NRZ signal from a digital signal source in synchronism with the system clock source; and modulating the optical pulse signal based on the partial response signal, and outputting a binary RZ modulated signal. The binary RZ modulated signal is input into a receiver, where two partial response components in the optical spectra of the input signal are divided, and one or both of the components are received.

摘要翻译： 提高波长公差的系统以简单的方式补偿色散，减少了光纤输入功率的限制。 该操作包括从系统时钟源接收时钟信号; 基于时钟信号调制单模光信号并产生具有两个纵模的光脉冲信号，其频率间隔为n×B，n为自然数，B为传输速度; 通过与系统时钟源同步地从数字信号源转换二进制NRZ信号来产生部分响应信号; 并根据部分响应信号调制光脉冲信号，并输出二进制RZ调制信号。 二进制RZ调制信号被输入到接收机中，其中输入信号的光谱中的两个部分响应分量被分割，并且接收一个或两个分量。

公开(公告)号：US07002968B1

公开(公告)日：2006-02-21

申请号：US09664001

申请日：2000-09-18

申请人： Masahito Tomizawa ,  Yoshiaki Kisaka ,  Yutaka Miyamoto ,  Takashi Ono ,  Hiromu Toba

发明人： Masahito Tomizawa ,  Yoshiaki Kisaka ,  Yutaka Miyamoto ,  Takashi Ono ,  Hiromu Toba

IPC分类号： H04L12/28

CPC分类号： H04J14/0295 ,  H04J3/1611 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0294

摘要： A signal transport system and a transport method are provided. A whole lowspeed signal containing a client overhead received from a client network is transparently subjected to time division multiplexing and an additional overhead is inserted in the whole signal and further subjected to wavelength division multiplexing, so that the digital signal having the addition overhead is transported in the wavelength division mode represented by one wavelength to a receiving equipment.

摘要翻译： 提供信号传输系统和传送方法。 包含从客户端网络接收到的客户端开销的整个低速信号被透明地进行时分复用，并且在整个信号中插入额外的开销，并进一步进行波分复用，使得具有加法开销的数字信号被传输 波长分割模式由一个波长表示为接收设备。

公开(公告)号：US20080226298A1

公开(公告)日：2008-09-18

申请号：US10598089

申请日：2004-09-16

申请人： Hiroyuki Fukuyama ,  Toshihiro Itoh ,  Satoshi Tunashima ,  Kimikazu Sano ,  Koichi Murata ,  Yohtaro Umeda ,  Yasuo Tazoh ,  Hirohiko Sugahara ,  Hiromu Toba ,  Masahiro Muraguchi ,  Senichi Suzuki ,  Seiji Fukushima ,  Yoshinori Hibino ,  Tadashi Sakamoto ,  Yoshiaki Yamabayashi ,  Eiji Yoshida ,  Ryuichi Iwamoto

发明人： Hiroyuki Fukuyama ,  Toshihiro Itoh ,  Satoshi Tunashima ,  Kimikazu Sano ,  Koichi Murata ,  Yohtaro Umeda ,  Yasuo Tazoh ,  Hirohiko Sugahara ,  Hiromu Toba ,  Masahiro Muraguchi ,  Senichi Suzuki ,  Seiji Fukushima ,  Yoshinori Hibino ,  Tadashi Sakamoto ,  Yoshiaki Yamabayashi ,  Eiji Yoshida ,  Ryuichi Iwamoto

IPC分类号： H04B10/13

CPC分类号： H04B10/2572

摘要： The present invention has been achieved to provide a novel optical transmission system realizing high-speed optical transmission over greater distance by suppressing waveform degradation caused by mode dispersion and mode transition in a multimode optical transmission line. The optical transmission system of the present invention includes: an optical transmitter for transmitting incoherent light; an excitation mechanism for exciting a predetermined mode in the incoherent light transmitted from the optical transmitter; a multimode optical transmission line for transmitting the incoherent light transmitted from the excitation mechanism; a transmission mechanism for transmitting a predetermined mode in the incoherent light transmitted from the excitation mechanism; and an optical receiver for receiving the incoherent light transmitted from the transmission mechanism or the incoherent light transmitted from the transmission mechanism.

摘要翻译： 本发明是为了提供一种新颖的光传输系统，其通过抑制由多模光传输线路中的模式色散和模式转变引起的波形劣化而实现更大距离的高速光传输。 本发明的光传输系统包括：用于发送非相干光的光发射机; 激励机构，用于激发从所述光发射机发射的非相干光中的预定模式; 用于发送从激励机构发送的非相干光的多模光传输线; 用于在从激励机构发送的非相干光中发送预定模式的传输机构; 以及用于接收从传输机构传输的非相干光或从传输机构发射的非相干光的光接收机。