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11. 发明专利

JP5320745B2 The carrier suppressed optical pulse train generating device and the carrier suppressed optical pulse train generating method 有权
公开(公告)号：JP5320745B2
公开(公告)日：2013-10-23
申请号：JP2008004435
申请日：2008-01-11
申请人：沖電気工業株式会社
发明人：慎荒平
IPC分类号： G02F1/01 , G02F1/015 , G02F1/017 , H01S5/026 , H01S5/0625 , H01S5/125
CPC分类号： H04B10/5165 , H04B10/541
摘要： The device is structured to have a first electric modulation signal generator, a second electric modulation signal generator, a two-mode beat light source and an optical intensity modulator. The first electric modulation signal generator generates and outputs a first electric modulation signal. The second electric modulation signal generator generates and outputs a second electric modulation signal of a same frequency as the first electric modulation signal and to which a phase difference of δ radians is provided (δ is a real number satisfying 0≦̸δ≦̸&pgr;). The two-mode beat light source is driven by the first electric modulation signal, and generates and outputs two-mode beat light. The two-mode beat light is inputted to the optical intensity modulator, and the optical intensity modulator generates and outputs a CS optical pulse train. Light transmittance of the optical intensity modulator is modulated by the second electric modulation signal.

12. 发明专利

JP2009284454A Method and system for generating an optical ofdm signal with reduced osnr requirement 审中-公开
标题翻译：用于产生具有降低的OSNR要求的光学OFDM信号的方法和系统
公开(公告)号：JP2009284454A
公开(公告)日：2009-12-03
申请号：JP2008172899
申请日：2008-07-02
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： YU JIANJUN , WANG TING
IPC分类号： H04B10/04 , G02F2/00 , H04B10/06 , H04B10/142 , H04B10/152 , H04J14/00 , H04J14/02
CPC分类号： H04L27/2627 , H04B10/505 , H04B10/5165 , H04B10/548 , H04L27/2697
摘要： PROBLEM TO BE SOLVED: To provide a method for generating an optical OFDM signal, with reduced optical signal to noise ratio (OSNR) requirement.
SOLUTION: A method for generating an optical OFDM signal with reduced OSNR requirement includes separating an up-converted OFDM signal into a first part and a second part out of phase with the first part; driving a modulator with the first and second parts of the up-converted OFDM signal; and varying the lightwave with the modulator for generating a carrier suppressed OFDM signal having improved receiver sensitivity.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种产生光OFDM信号的方法，具有降低的光信噪比（OSNR）要求。解决方案：一种用于产生具有降低的OSNR要求的光OFDM信号的方法，包括将上转换的OFDM信号分离成与第一部分异相的第一部分和第二部分; 用上变频OFDM信号的第一和第二部分驱动调制器; 并用调制器改变光波，以产生具有改进的接收机灵敏度的载波抑制OFDM信号。版权所有（C）2010，JPO＆INPIT

13. 发明专利

JP2009512285A Method and apparatus for optical transmission of digital signals 有权
公开(公告)号：JP2009512285A
公开(公告)日：2009-03-19
申请号：JP2008534823
申请日：2006-10-12
申请人：モナシュ、ユニバーシティMonash University
发明人：アーサー、ローリー , ジーン、アームストロング
IPC分类号： H04B10/02 , H04B10/00 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18 , H04L27/00
CPC分类号： H04N7/22 , H04B10/2513 , H04B10/5165 , H04B10/541 , H04B10/548 , H04B10/556 , H04B10/5561 , H04B10/5563 , H04B10/6971
摘要： A system (100) for transmitting digital information includes a transmitting apparatus (102) for generating an optical signal bearing digital information, a dispersive optical channel (104), and a receiving apparatus (110) for receiving the optical signal. The dispersive optical channel (104) is disposed to convey the optical signal from the transmitting apparatus (102) to the receiving apparatus (110). The transmitting apparatus includes an encoder (114) for encoding digital information into a series of blocks, each including a plurality of data symbols corresponding with one or more bits of digital information. A signal generator (118) generates a time-varying signal corresponding with each of said blocks. An optical transmitter (136) is arranged to apply the time-varying signal to an optical source (138) to produce an optical signal which includes an optical carrier and substantially only a single information bearing optical sideband in an optical frequency domain, the sideband corresponding with the time-varying signal. The receiving apparatus (110) includes an optical detector (146) for detecting the optical signal to produce a corresponding received time-varying electrical signal. The receiver further includes means (166) for generating a series of received data blocks from the time-varying electrical signal. An equalizer (168) performs an equalization of received data symbols included in each data block to mitigate the effect of dispersion of the optical channel, thereby enabling the transmitted data symbols to be recovered.

14. 发明专利

JP4178617B2 An optical transmission system, an optical transmission device and an optical transmission method 有权
公开(公告)号：JP4178617B2
公开(公告)日：2008-11-12
申请号：JP29169198
申请日：1998-10-14
申请人：松下電器産業株式会社
发明人：優布施
IPC分类号： H04J14/00 , H04B10/2513 , H04B10/516 , H04B10/548 , H04B10/564 , H04B10/588 , H04B10/61 , H04J14/02
CPC分类号： H04B10/25137 , H04B10/505 , H04B10/5165 , H04J14/0298

15. 发明专利

JP2007199110A Light modulator 有权
标题翻译：光调制器
公开(公告)号：JP2007199110A
公开(公告)日：2007-08-09
申请号：JP2006014200
申请日：2006-01-23
申请人： Sumitomo Osaka Cement Co Ltd , 住友大阪セメント株式会社
发明人： HASHIMOTO YOSHIHIRO , MORI SHINGO , MIYAZAKI TOKUICHI , HIKUMA KAORU , SAKANE TOSHIO
IPC分类号： G02F1/03 , G02F1/035
CPC分类号： G02F1/2255 , H04B10/505 , H04B10/5053 , H04B10/5165
摘要： PROBLEM TO BE SOLVED: To provide an light modulator that can perform light modulation with high efficiency, over a wide band from low frequency to high frequency, and optionally adjusting the ratio of carrier power to signal power.
SOLUTION: A first SSB modulation part 103a modulates an RF carrier frequency f
m , in a sub Mach-Zehnder waveguide and imparts a phase difference -π/2 in a main Mach-Zehnder waveguide. A second SSB modulation part 103b performs modulation, based on a data signal in the sub Mach-Zehnder waveguide and imparts a phase difference π/2 in the main Mach-Zehnder waveguide. In this case, the output beams from the two SSB modulation parts 103a, 103b have single sidebands that are opposite to each other.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在低频到高频的宽频带上以高效率执行光调制的光调制器，并且可选地调整载波功率与信号功率的比率。解决方案：第一SSB调制部分103a在副马赫 - 策德尔波导中调制RF载波频率f m ，并在主马赫 - 策德尔波导中施加相位差-π/ 2。第二SSB调制部分103b基于子马赫 - 曾德尔波导中的数据信号进行调制，并在主马赫 - 策德尔波导中施加相位差π/ 2。在这种情况下，来自两个SSB调制部103a，103b的输出光束具有彼此相反的单个边带。版权所有（C）2007，JPO＆INPIT

16. 发明专利

JP2007086207A Phase control optical fsk modulator 有权
标题翻译：相控光学FSK调制器
公开(公告)号：JP2007086207A
公开(公告)日：2007-04-05
申请号：JP2005272624
申请日：2005-09-20
申请人： National Institute Of Information & Communication Technology , 独立行政法人情報通信研究機構
发明人： KAWANISHI TETSUYA , SAKAMOTO TAKAHIDE , IZUTSU MASAYUKI , TSUCHIYA MASAHIRO
IPC分类号： G02F1/03 , G02F1/035 , H04B10/516 , H04B10/524 , H04B10/54 , H04B10/556 , H04B10/572 , H04B10/588 , H04B10/61 , H04L27/20
CPC分类号： G02F1/225 , G02F1/0121 , G02F1/0316 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/5165 , H04B10/541 , H04B10/5563
摘要： PROBLEM TO BE SOLVED: To provide an optical modulator capable of controlling the phase of a USB signal and the phase of an LSB signal of an optical FSK modulator. SOLUTION: The optical FSK modulator is capable of achieving FSK modulation regulated in phases basically by applying a modulation signal to a main Mach-Zehunder electrode (electrode C) (11) of a main Mach-Zehunder waveguide (MZ C ) (8) to change over the USB signal and the LSB signal enabling the FSK modulation, and further applying a bias voltage to the main Mach-Zehunder electrode (11) in order to control the phase of the light signal output from the Mach-Zehunder waveguide (MZ C ) (8) thereby controlling the phases of the USB signal and the LSB signal which are heretofore not considered. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够控制USB信号的相位和光学FSK调制器的LSB信号的相位的光调制器。解决方案：光学FSK调制器能够基本上通过向主Mach-Zehunder波导（MZ ）的主Mach-Zehunder电极（电极C）（11）施加调制信号来实现相位调节的FSK调制。 C 8）来切换USB信号和LSB信号以实现FSK调制，并且进一步向主Mach-Zehunder电极（11）施加偏置电压，以便控制光信号的相位输出马赫 - 泽勒波导（MZ C ）（8），从而控制以前不考虑的USB信号和LSB信号的相位。版权所有（C）2007，JPO＆INPIT

17. 发明专利

JP2006074791A Method of modulation with low cross-talk in optical transmission 审中-公开
标题翻译：光传输中低交叉调制方法
公开(公告)号：JP2006074791A
公开(公告)日：2006-03-16
申请号：JP2005254241
申请日：2005-09-02
申请人： Lucent Technol Inc , ルーセントテクノロジーズインコーポレーテッド
发明人： ESSIAMBRE RENE-JEAN
IPC分类号： H04B10/02 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18 , H04J14/00 , H04J14/02
CPC分类号： H04B10/506 , H04B10/2507 , H04B10/516 , H04B10/5162 , H04B10/5165 , H04B2210/517
摘要： PROBLEM TO BE SOLVED: To provide a system for reducing optical pulse deterioration and inter-channel cross-talk with high spectrum efficiency in a DWDM optical transmission system. SOLUTION: An apparatus includes a multi-channel optical transmitter and an all-optical system transmission line. The multi-channel transmitter is configured to produce optical data streams having both sidebands system in each of a series of channels. The all-optical transmission line has a sequence of spans of transmission optical fiber and one or more sequences of optical bandpass filters and is configured to receive from the optical transmitter optical data pulses in the series of channels. One of the sequences of optical bandpass filters is configured to pass one of the sidebands and to block the other of the sidebands of the optical data stream in an associated one of the channels and is also configured to block one of the channels adjacent to the associated one of the channels. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在DWDM光传输系统中降低光脉冲劣化和具有高频谱效率的信道间串扰的系统。解决方案：一种装置包括多通道光发射机和全光系统传输线。多通道发射机被配置为产生在一系列信道中的每一个中具有两个边带系统的光数据流。全光传输线具有传输光纤和一个或多个光带通滤波器序列的序列，并且被配置为从光发射机接收在该系列信道中的光数据脉冲。光带通滤波器的序列之一被配置为通过边带中的一个并且在相关联的一个信道中阻挡光数据流中的另一个边带，并且还被配置为阻塞与相关联的相邻的一个信道中的一个信道其中一个渠道。版权所有（C）2006，JPO＆NCIPI

18. 发明专利

JP2004140833A Optical transmission system 审中-公开
标题翻译：光传输系统
公开(公告)号：JP2004140833A
公开(公告)日：2004-05-13
申请号：JP2003355093
申请日：2003-10-15
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： LEE GYU-WOONG , LEE HAN-LIM , GO JUNSAI , HWANG SEONG-TEAK
IPC分类号： G02F1/035 , H04B10/2507 , H04B10/2513 , H04B10/516 , H04B10/54 , H04B10/556 , H04B10/588 , H04B10/61 , H04B10/04 , H04B10/02 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18
CPC分类号： H04B10/5167 , H04B10/25137 , H04B10/505 , H04B10/5051 , H04B10/5055 , H04B10/5162 , H04B10/5165
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system transmitting a carrier-suppressed-carrier RZ (return to zero) signal, by modulating light intensity and a phase by a low-cost Mach-Zender light intensity modulator, without using a phase modulator.
SOLUTION: The optical transmission system includes a light source 30 for outputting optical carrier waves, an optical duobinary signal generator 100 for modulating the optical carrier wave corresponding to a NRZ (non-return-to zero) signal, and a carrier-suppressed RZ signal generator 200 for converting the NRZ signal into the RZ signal, in synchronization with a clock signal. The optical duobinary signal generator includes a coder 101 for converting the NRZ signal into a duobinary signal, a modulator driver 102 for generating a modulator drive signal by receiving the duobinary signal, a Mach-Zender light intensity modulator 103 for modulating the light intensity by shifting the phase of the optical carrier wave, after receiving the modulator drive signal, and a wide bandpass filter 104 for outputting the optical duobinary signal by receiving the modulated optical signal.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种透射载波抑制载波RZ（返回零）信号的光传输系统，通过低成本马赫 - 泽德光强度调制器调制光强度和相位，而不使用相位调制器。光传输系统包括用于输出光载波的光源30，用于调制对应于NRZ（非归零）信号的光载波的光双二进制信号发生器100，抑制RZ信号发生器200，用于将NRZ信号转换成RZ信号，与时钟信号同步。光学双二进制信号发生器包括用于将NRZ信号转换为双二进制信号的编码器101，用于通过接收二进制信号产生调制器驱动信号的调制器驱动器102，用于通过移位来调制光强度的马赫 - 泽根光强度调制器103 在接收到调制器驱动信号之后的光载波的相位和宽带通滤波器104，用于通过接收调制的光信号来输出光学双二进制信号。版权所有（C）2004，JPO

19. 发明专利

JP2004104385A Optical transmission system, optical transmission apparatus, and method for them 审中-公开
公开(公告)号：JP2004104385A
公开(公告)日：2004-04-02
申请号：JP2002262337
申请日：2002-09-09
申请人： Kddi Submarine Cable Systems Inc , Mitsubishi Electric Corp , ケイディディアイ海底ケーブルシステム株式会社 , 三菱電機株式会社
发明人： MORITA ITSURO , TSURITANI TAKEHIRO , AGATA AKIRA , EDAKAWA NOBORU
IPC分类号： H04B10/61 , H04B10/40 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/54 , H04B10/60 , H04B10/04 , H04B10/02 , H04B10/06 , H04B10/142 , H04B10/152
CPC分类号： H04B10/508 , H04B10/505 , H04B10/506 , H04B10/5162 , H04B10/5165
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system, an optical transmission apparatus, and a method for them for using a CS-RZ signal in a narrower band.
SOLUTION: A laser diode (LD) 12 outputs a continuous light (CW light) with a wavelength λs (frequency f0). A CS-RZ pulse train forming apparatus 14 generates a CS-RZ optical pulse train with a bit rate B from a CW output light from the LD 12. A data modulator 16 applies intensity modulation to the output optical pulse train of the apparatus 14 according to data D to be transmitted. An optical band pass filter 18 transmits a component of the carrier frequency (f0) and a component with a frequency f1(=f0+B/2) as they are, and transmits a component with a frequency f2 (=f0-B/2) while slightly leaving it, out of output lights of the data modulator 16.
COPYRIGHT: (C)2004,JPO

20. 发明专利

JP2017527233A フェーズドアレイ無線周波数受信機有权
公开(公告)号：JP2017527233A
公开(公告)日：2017-09-14
申请号：JP2017521046
申请日：2015-07-03
申请人：フェーズセンシティブイノベーションインク. , フェーズセンシティブイノベーションインク.
发明人：シュエッツ，クリス , ムラコウスキ，ジャヌス , シュナイダ，ガレット , シイ，ショウヤン , プラザア，デニス
IPC分类号： H04B10/2575 , H04B10/60
CPC分类号： H04B10/5165 , H04B1/16 , H04B10/11 , H04B10/25759 , H04B10/64
摘要： RF信号処理の方法は、第1のパターンで配列された複数のアンテナ素子の各々において入力RF信号を受信することを含む。複数のアンテナ素子の各々から受信されたRF信号は、光搬送波上で変調され、それぞれが少なくとも1つの側波帯を有する複数の変調信号を生成する。変調された信号は、対応する複数の光チャネルに沿って導かれ、出力は第1のパターンに対応する第2のパターンに配置される。複合光信号は、複数の光チャネルの出力から発する光を用いて形成される。受信されたRF信号の少なくとも1つに含まれる非空間情報は、複合信号から抽出される。

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