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11. 发明申请

US20130216231A1 OPTICAL COMMUNICATION SYSTEM, TRANSMISSION APPARATUS AND RECEPTION APPARATUS, AND TRANSMISSION METHOD AND RECEPTION METHOD 有权
标题翻译：光通信系统，传输装置和接收装置以及传输方法和接收方法
公开(公告)号：US20130216231A1
公开(公告)日：2013-08-22
申请号：US13488659
申请日：2012-06-05
申请人： Qi Yang , Zhu Yang , Shaohua Yu
发明人： Qi Yang , Zhu Yang , Shaohua Yu
IPC分类号： H04J14/00
CPC分类号： H04B10/5161 , H04B10/5563 , H04L27/2614 , H04L27/2636 , H04L27/2697
摘要： An optical communication system, a transmission apparatus and a reception apparatus, and a transmission method and a reception method are provided. The transmission apparatus transmits an optical signal, and comprises: at least one encoder for encoding at least one data signal, respectively; at least one first modulator for performing first modulation on the at least one encoded data signal, respectively, and generating at least one first modulated signal; at least one second modulator for performing second modulation, which is DFT-spread-OFDM modulation, on the at least one first modulated signal, respectively, and generating at least one second modulated signal; and an up-converter for up-converting the at least one second modulated signal into the optical signal to be transmitted. Thus, a PAPR of the optical OFDM transmission signal is decreased, a signal distortion caused by non-linearity of optical devices is reduced, and a reception quality of the signal is improved.
摘要翻译：提供光通信系统，发送装置和接收装置，以及发送方法和接收方法。发送装置发送光信号，并且包括：分别对至少一个数据信号进行编码的至少一个编码器; 至少一个第一调制器，分别对所述至少一个编码数据信号执行第一调制，并产生至少一个第一调制信号; 至少一个第二调制器，用于在所述至少一个第一调制信号上分别进行DFT扩频OFDM调制的第二调制，并产生至少一个第二调制信号; 以及上变频器，用于将所述至少一个第二调制信号上变频为待传输的光信号。因此，光OFDM传输信号的PAPR减小，由于光器件的非线性引起的信号失真降低，信号的接收质量提高。

12. 发明授权

US08014684B2 Modulation light signal generating device and FSK modulation signal generating device 有权
标题翻译：调制光信号发生装置和FSK调制信号发生装置
公开(公告)号：US08014684B2
公开(公告)日：2011-09-06
申请号：US11571281
申请日：2005-06-29
申请人： Tetsuya Kawanishi , Hiroshi Harada , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Hiroshi Harada , Masayuki Izutsu
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H03D9/00 , H04B10/505 , H04B10/5563
摘要： The object of the present invention is to provide a modulated optical signal generator utilizing the mechanism of a multiply optical modulator, and a modulated signal generator capable of outputting millimeter waves and the like utilizing the modulated optical signal generator.The above-mentioned object is solved by a modulated optical signal generator (1) provided with an optical modulator (2), a first optical filter (3), and a second optical filter (4), wherein a frequency of a multiplying optical modulation outputted from the second optical filter (4) is controlled by controlling the frequency of the modulating signal inputted to the optical modulator (2).
摘要翻译：本发明的目的是提供一种利用多光调制器机构的调制光信号发生器，以及利用调制光信号发生器输出毫米波等的调制信号发生器。上述目的通过具有光调制器（2），第一滤光器（3）和第二滤光器（4）的调制光信号发生器（1）来解决，其中乘法光调制通过控制输入到光调制器（2）的调制信号的频率来控制从第二滤光器（4）输出的输出。

13. 发明授权

US07941057B2 Integral phase rule for reducing dispersion errors in an adiabatically chirped amplitude modulated signal 有权
标题翻译：用于减少绝热啁啾幅度调制信号中的色散误差的积分相位规则
公开(公告)号：US07941057B2
公开(公告)日：2011-05-10
申请号：US11964321
申请日：2007-12-26
申请人： Daniel Mahgerefteh , Parviz Tayebati , Xueyan Zheng , Yasuhiro Matsui
发明人： Daniel Mahgerefteh , Parviz Tayebati , Xueyan Zheng , Yasuhiro Matsui
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5161 , H04B10/25137 , H04B10/541 , H04B10/5563
摘要： An optical transmitter is disclosed for transmitting a signal along a dispersive medium to a receiver. The optical transmitter generates adiabatically chirped profile having an initial pulse width and frequency excursion chosen such that high frequency data sequences include one bits that interfere destructively at a middle point of an intervening zero bit upon arrival at the receiver.
摘要翻译：公开了一种用于将信号沿色散介质传送到接收器的光发射器。光发射机产生具有选择的初始脉冲宽度和频率偏移的绝热啁啾轮廓，使得高频数据序列包括到达接收机时在中间零位的中点处破坏性地干扰的一个比特。

14. 发明授权

US07936996B2 Automatic adjusting system of frequency shift keying modulator 有权
标题翻译：频移键控调制器自动调节系统
公开(公告)号：US07936996B2
公开(公告)日：2011-05-03
申请号：US12064631
申请日：2006-08-23
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/04
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/20 , H04B10/505 , H04B10/5165 , H04B10/5563
摘要： An optical modulator achieving high extinction ratio and an optical modulator system. By a control system performing an adjustment method comprising predetermined steps by applying a bias voltage daringly to a modulation electrode for switching the USB signal and LSB signal of an established optical SSB modulator or optical FSK modulator, a means for adjusting bias voltage applied to each bias electrode preferably automatically is provided and a bias point where the extinction ratio of an optical modulator is maximized can be obtained.
摘要翻译：实现高消光比的光调制器和光调制器系统。通过控制系统执行包括预定步骤的调整方法，该偏置电压大大地施加到调制电极，用于切换建立的光学SSB调制器或光FSK调制器的USB信号和LSB信号，用于调整施加到每个偏置的偏置电压的装置优选自动提供电极，并且可以获得光调制器的消光比最大化的偏置点。

15. 发明申请

US20090041472A1 AUTOMATIC ADJUSTING SYSTEM OF FREQUENCY SHIFT KEYING MODULATOR 有权
标题翻译：频移键控调制器自动调节系统
公开(公告)号：US20090041472A1
公开(公告)日：2009-02-12
申请号：US12064631
申请日：2006-08-23
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/04
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/20 , H04B10/505 , H04B10/5165 , H04B10/5563
摘要： An optical modulator achieving high extinction ratio and an optical modulator system. By a control system performing an adjustment method comprising predetermined steps by applying a bias voltage daringly to a modulation electrode for switching the USB signal and LSB signal of an established optical SSB modulator or optical FSK modulator, a means for adjusting bias voltage applied to each bias electrode preferably automatically is provided and a bias point where the extinction ratio of an optical modulator is maximized can be obtained.
摘要翻译：实现高消光比的光调制器和光调制器系统。通过控制系统执行包括预定步骤的调整方法，该偏置电压大大地施加到调制电极，用于切换建立的光学SSB调制器或光FSK调制器的USB信号和LSB信号，用于调整施加到每个偏置的偏置电压的装置优选自动提供电极，并且可以获得光调制器的消光比最大化的偏置点。

16. 发明授权

US07376360B2 Optical device for extracting a sideband signal from a composite signal including orthogonally modulated signals 失效
标题翻译：用于从包括正交调制信号的复合信号中提取边带信号的光学装置
公开(公告)号：US07376360B2
公开(公告)日：2008-05-20
申请号：US11018028
申请日：2004-12-21
申请人： Jean Gerardus Leonardus Jennen
发明人： Jean Gerardus Leonardus Jennen
IPC分类号： H04B10/06
CPC分类号： H04B10/66 , H04B10/5165 , H04B10/5563 , H04B10/69 , H04B2210/07
摘要： An optical device extracts an information bearing sideband such as an FSK or SCM signal (label) from a composite signal that includes the sideband and an orthogonally modulated signal such as an intensity modulated signal (payload) by employing polarization beam splitting and polarization transformation. Polarization transformation is accomplished by splicing the optical signal into a polarization maintaining fiber at a desired angle so that it is separated into two orthogonal polarizations that experience differential group delay in the fiber. The fiber is characterized by a beat length Lbeat and the fiber is designed to have a length substantially equal to (Lbeat×fc)/2δf, wherein the sidebands of the composite signal are separated by a wavelength difference δf and fc is the nominal center frequency of the composite signal. This device has been shown to be useful for extracting GMPLS LSC level wavelength labels from either an FSK/IM composite signal or an SCM/IM composite signal.
摘要翻译：光学装置通过使用偏振光束分离和偏振变换，从包括边带的复合信号和诸如强度调制信号（有效载荷）的正交调制信号中提取诸如FSK或SCM信号（标签）的信息承载边带。通过将光信号拼接成所需角度的偏振保持光纤来实现极化转换，使得其被分离成在光纤中经历差分群延迟的两个正交偏振。光纤的特征在于拍子长度L> beat and and and and / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / 2deltaf，其中复合信号的边带由波长差Δt分隔，并且f C是复合信号的标称中心频率。该装置已被证明可用于从FSK / IM复合信号或SCM / IM复合信号中提取GMPLS LSC电平波长标签。

17. 发明授权

US07277647B2 System and method of optical transmission 有权
标题翻译：光传输系统和方法
公开(公告)号：US07277647B2
公开(公告)日：2007-10-02
申请号：US10099105
申请日：2002-03-14
申请人： Douglas M Gill , Xiang Liu , Xing Wei
发明人： Douglas M Gill , Xiang Liu , Xing Wei
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/5053 , H04B10/5563
摘要： Minimum shift keying (MSK) is used as the coding scheme in a high bit rate optical transmission system, and the signal format is either RZ (return-to-zero) or NRZ (non-return-to-zero). The system can combine multiple individual channels with different wavelengths in a WDM or dense wavelength division multiplexed (DWDM) arrangement. Dispersion management can be provided using several techniques, such as quasi-linear transmissions or conventional RZ transmissions. At the transmitter, an optical MSK transmitter is used to modulate the phase of a stream of high bit rate (e.g., 40 Gbit/s) optical signals. Many such data streams can be combined in a wavelength division multiplexer and transmitted to a remote receiver, where the signal is wavelength division demultiplexed. The encoded data in each wavelength channel is then recovered by an MSK receiver, which may consist of a delay demodulator and a balanced detector.
摘要翻译：最小移位键控（MSK）用作高比特率光传输系统中的编码方案，信号格式为RZ（归零）或NRZ（非归零）。该系统可以在WDM或密集波分复用（DWDM）布置中组合具有不同波长的多个单独信道。可以使用几种技术来提供色散管理，例如准线性传输或常规RZ传输。在发射机处，使用光学MSK发射机来调制高比特率（例如40Gbit / s）光信号流的相位。许多这样的数据流可以组合在波分多路复用器中并被发送到远程接收机，其中信号被波分解复用。每个波长信道中的编码数据然后由MSK接收机恢复，MSK接收机可以由延迟解调器和平衡检测器组成。

18. 发明申请

US20050238364A1 Optical device for extracting a sideband signal from a composite signal including orthogonally modulated signals 失效
标题翻译：用于从包括正交调制信号的复合信号中提取边带信号的光学装置
公开(公告)号：US20050238364A1
公开(公告)日：2005-10-27
申请号：US11018028
申请日：2004-12-21
申请人： Jean Leonardus Jennen
发明人： Jean Leonardus Jennen
IPC分类号： H04B10/00 , H04B10/158
CPC分类号： H04B10/66 , H04B10/5165 , H04B10/5563 , H04B10/69 , H04B2210/07
摘要： An optical device extracts an information bearing sideband such as an FSK or SCM signal (label) from a composite signal that includes the sideband and an orthogonally modulated signal such as an intensity modulated signal (payload) by employing polarization beam splitting and polarization transformation. Polarization transformation is accomplished by splicing the optical signal into a polarization maintaining fiber at a desired angle so that it is separated into two orthogonal polarizations that experience differential group delay in the fiber. The fiber is characterized by a beat length Lbeat and the fiber is designed to have a length substantially equal to (Lbeat×fc)/2δf, wherein the sidebands of the composite signal are separated by a wavelength difference δf and fc is the nominal center frequency of the composite signal. This device has been shown to be useful for extracting GMPLS LSC level wavelength labels from either an FSK/IM composite signal or an SCM/IM composite signal.
摘要翻译：光学装置通过使用偏振光束分离和偏振变换，从包括边带的复合信号和诸如强度调制信号（有效载荷）的正交调制信号中提取诸如FSK或SCM信号（标签）的信息承载边带。通过将光信号拼接成所需角度的偏振保持光纤来实现极化转换，使得其被分离成在光纤中经历差分群延迟的两个正交偏振。光纤的特征在于拍子长度L> beat and and and and / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / 2deltaf，其中复合信号的边带由波长差Δt分隔，并且f C是复合信号的标称中心频率。该装置已被证明可用于从FSK / IM复合信号或SCM / IM复合信号中提取GMPLS LSC电平波长标签。

19. 发明申请

US20030193705A1 Photonic constant envelope RF modulator 审中-公开
标题翻译：光子恒定包络射频调制器
公开(公告)号：US20030193705A1
公开(公告)日：2003-10-16
申请号：US09986320
申请日：2001-11-08
发明人： William W. Anderson , Denis Rampton
IPC分类号： G02F001/00 , G02B026/00
CPC分类号： H04B10/5563 , H04B10/505 , H04B10/5053
摘要： A system for performing photonic constant envelope modulation utilizing a frequency shifted optical signal and a pure phase modulated optical signal. A coupler superposes the pure phase modulated signal and the frequency shifted optical signal. A set of detectors generates a photocurrent signal based on the superposed signals. A splitter generates a first optical signal and a second optical signal, wherein each represents nominally one half of an input optical signal. A filter, coupled to the set of detectors, is operable to remove a DC current from the photocurrent signal.
摘要翻译：利用频移光信号和纯相位调制光信号进行光子常数包络调制的系统。耦合器叠加纯相位调制信号和频移光信号。一组检测器基于叠加信号产生光电流信号。分路器产生第一光信号和第二光信号，其中每个表示名义上为输入光信号的一半。耦合到该组检测器的滤波器可操作以从光电流信号中去除DC电流。

20. 发明授权

US3435230A Optical information transmission system 失效
标题翻译：光信息传输系统
公开(公告)号：US3435230A
公开(公告)日：1969-03-25
申请号：US3435230D
申请日：1966-12-08
申请人： BELL TELEPHONE LABOR INC
发明人： COURTNEY-PRATT JEOFRY S , HARGROVE LOGAN E
IPC分类号： H01S3/106 , H04B10/155 , H01S3/10 , H04B9/00
CPC分类号： H04B10/505 , H01S3/1068 , H04B10/524 , H04B10/5563

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