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公开(公告)号：US20080159751A1
公开(公告)日：2008-07-03
申请号：US11894509
申请日：2007-08-20
IPC分类号： H04B10/04
CPC分类号： G02B5/281 , H01S5/50 , H04B10/25133 , H04B10/504
摘要： A fiber optic communication system comprising:an optical signal source adapted to receive a binary first signal and generate a binary second signal, wherein the binary first signal has an amplitude modulated component, wherein the binary second signal has an amplitude modulated component and a frequency modulated component, and further wherein the binary second signal is characterized in that the higher intensity 1 bits are red shifted relative to the lower intensity 0 bits;a semiconductor optical amplifier (SOA) adapted to receive the binary second signal and generate a binary third signal, wherein the binary third signal has an amplitude modulated component and a frequency modulated component, and further wherein the semiconductor optical amplifier operates in saturation; andan optical spectrum reshaper (OSR) adapted to reshape the binary third signal into a binary fourth signal, wherein the binary fourth signal has an amplitude modulated component and a frequency modulated component.A method for transmitting a signal, comprising:receiving a binary first signal having an amplitude modulated component and generating a binary second signal having an amplitude modulated component and a frequency modulated component, wherein the binary second signal is characterized in that the higher intensity 1 bits are red shifted relative to the lower intensity 0 bits;passing the binary second signal through a semiconductor optical amplifier (SOA) operating in saturation so as to generate a binary third signal, wherein the binary third signal has an amplitude modulated component and a frequency modulated component; andreshaping the binary third signal into a binary fourth signal, wherein the binary fourth signal has an amplitude modulated component and a frequency modulated component.
摘要翻译： 一种光纤通信系统，包括：光信号源，适于接收二进制第一信号并产生二进制第二信号，其中所述二进制第一信号具有幅度调制分量，其中所述二进制第二信号具有幅度调制分量和频率调制 并且其中所述二进制第二信号的特征在于，较高强度1比特相对于较低强度0比特红移; 适于接收所述二进制第二信号并产生二进制第三信号的半导体光放大器（SOA），其中所述二进制第三信号具有幅度调制分量和调频分量，并且其中所述半导体光放大器工作在饱和状态; 以及适于将二进制第三信号重新形成二进制第四信号的光谱整形器（OSR），其中二进制第四信号具有调幅分量和调频分量。 一种用于发送信号的方法，包括：接收具有幅度调制分量的二进制第一信号并产生具有幅度调制分量和调频分量的二进制第二信号，其中二进制第二信号的特征在于较高强度1比特 相对于较低强度的0位红移; 使所述二进制第二信号通过饱和运行的半导体光放大器（SOA），以产生二进制第三信号，其中所述二进制第三信号具有调幅分量和调频分量; 以及将所述二进制第三信号重新形成二进制第四信号，其中所述二进制第四信号具有幅度调制分量和调频分量。
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22.发明申请公开(公告)号：US20080025731A1
公开(公告)日：2008-01-31
申请号：US11784395
申请日：2007-04-06
IPC分类号： H04B10/04
CPC分类号： H04B10/516 , H04B10/505 , H04B10/5162 , H04B10/5561 , H04B2210/517
摘要： A system for generating a return-to-zero differentially-phase-shift-keyed (RZ-DPSK) optical signal comprising: a driver comprising an N-level digital multilevel transformer (DMT) configured to receive a two level digital electrical signal representing 1s and 0s and output a N-level electrical signal, wherein N>2; an FM source configured to receive the N-level electrical signal output by the driver and generate an optical frequency modulated signal; and an optical spectrum reshaper (OSR) configured to receive the optical frequency modulated signal output by the FM source and generate the desired RZ-DPSK optical signal. A method for generating a return-to-zero differentially-phase-shift-keyed (RZ-DPSK) optical signal, the method comprising: (1) receiving a two level digital electrical signal representing 1s and 0s and outputting a N-level electrical signal, wherein N>2; (2) receiving the N-level electrical signal output and generating an optical frequency modulated signal; and (3) receiving the optical frequency modulated signal and generating the desired RZ-DPSK optical signal.
摘要翻译： 一种用于产生归零差分相移键控（RZ-DPSK）光信号的系统，包括：驱动器，其包括N级数字多电平变压器（DMT），其被配置为接收表示1s的两级数字电信号 并输出N级电信号，其中N≥2; FM源，被配置为接收由驱动器输出的N电平电信号并产生光频调制信号; 以及光谱整形器（OSR），被配置为接收由FM源输出的光调制信号并产生所需的RZ-DPSK光信号。 一种用于产生归零差分相移键控（RZ-DPSK）光信号的方法，所述方法包括：（1）接收表示1s和0s的两电平数字电信号并输出N电平 信号，其中N> 2; （2）接收N电平电信号并产生光调制信号; 和（3）接收光调制信号并产生所需的RZ-DPSK光信号。
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公开(公告)号：US20060029396A1
公开(公告)日：2006-02-09
申请号：US11084630
申请日：2005-03-18
IPC分类号： H04B10/04
CPC分类号： H04B10/508
摘要： A fiber optic communication system comprising: an optical signal source adapted to produce a binary amplitude modulated signal; and an optical spectrum reshaper adapted to receive the amplitude modulated signal and to change the instantaneous frequency of the signal at its 0-to-1 and 1-to-0 transitions so as to change the instantaneous frequency of the signal so that it is substantially constant across the 1 pulse. A method for transmitting a signal through a fiber, comprising: generating a second signal from the signal, wherein the second signal comprises a intensity profile and an adiabatic frequency profile; generating a third signal from the second signal, wherein the third signal comprises a intensity profile and a flat-topped frequency profile.
摘要翻译： 一种光纤通信系统，包括：适于产生二进制幅度调制信号的光信号源; 以及适于接收幅度调制信号并改变信号在其0到1和1到0转换处的瞬时频率的光谱整形器，以便改变信号的瞬时频率，使得其基本上 恒定在1脉冲。 一种用于通过光纤发送信号的方法，包括：从所述信号产生第二信号，其中所述第二信号包括强度分布和绝热频率分布; 从第二信号产生第三信号，其中第三信号包括强度分布和平顶频率分布。
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公开(公告)号：US08236590B2
公开(公告)日：2012-08-07
申请号：US12857465
申请日：2010-08-16
IPC分类号： H01L21/00
CPC分类号： H01S5/125 , B82Y20/00 , H01S5/026 , H01S5/0612 , H01S5/06256 , H01S5/1003 , H01S5/2045 , H01S5/2086 , H01S5/227 , H01S5/34306
摘要： A distributed Bragg reflector (DBR) includes a base substrate and a gain medium formed on the base substrate. A waveguide positioned above the base substrate in optical communication with the gain medium and defines a gap extending between the base substrate and the waveguide along a substantial portion of the length thereof. The waveguide may have a grating formed therein. A heating element is in thermal contact with the waveguide and electrically coupled to a controller configured to adjust optical properties of the waveguide by controlling power supplied to the heating element.
摘要翻译： 分布式布拉格反射器（DBR）包括基底和在基底上形成的增益介质。 位于基底基板上方的波导与增益介质光通信，并且沿着其长度的大部分限定在基底基板和波导之间延伸的间隙。 波导可以具有形成在其中的光栅。 加热元件与波导热接触并电耦合到控制器，该控制器被配置为通过控制供应给加热元件的功率来调节波导的光学性质。
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25.发明授权Chirped laser with passive filter element for differential phase shift keying generation 有权啁啾激光器与无源滤波器元件进行差分相移键控生成公开(公告)号：US07991297B2
公开(公告)日：2011-08-02
申请号：US12014676
申请日：2008-01-15
CPC分类号： H04B10/5561 , H01S3/0057 , H01S3/0078
摘要： A method for generating D-N-PSK optical signals is disclosed wherein a laser is modulated to generate optical signal pairs including phase modulated and fixed phase portions, the phase modulated portions having a frequency encoding one or more data symbols and the fixed phase portion having a carrier frequency and a phase corresponding to the immediately preceding phase modulated portion. The output of the laser is passed through an optical spectrum reshaper having a transmission function chosen to attenuate a plurality of the phase modulated portions relative to the fixed phase portions. The phase modulated portions may have N frequency levels located on either side of the carrier frequency. One of the N frequency levels may be equal to the carrier frequency.
摘要翻译： 公开了一种用于产生DN-PSK光信号的方法，其中调制激光器以产生包括相位调制和固定相位部分的光信号对，所述相位调制部分具有对一个或多个数据符号进行编码的频率，并且具有载波的固定相位部分 频率和对应于紧接在前的相位调制部分的相位。 激光器的输出通过具有选择为相对于固定相位部分衰减多个相位调制部分的透射功能的光谱整形器。 相位调制部分可以具有位于载波频率的任一侧的N个频率电平。 N个频率电平中的一个可以等于载波频率。
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公开(公告)号：US07778295B2
公开(公告)日：2010-08-17
申请号：US12152407
申请日：2008-05-14
CPC分类号： H01S5/125 , B82Y20/00 , H01S5/026 , H01S5/0612 , H01S5/06256 , H01S5/1003 , H01S5/2045 , H01S5/2086 , H01S5/227 , H01S5/34306
摘要： A distributed Bragg reflector (DBR) includes a base substrate and a gain medium formed on the base substrate. A waveguide positioned above the base substrate in optical communication with the gain medium and defines a gap extending between the base substrate and the waveguide along a substantial portion of the length thereof. The waveguide may have a grating formed therein. A heating element is in thermal contact with the waveguide and electrically coupled to a controller configured to adjust optical properties of the waveguide by controlling power supplied to the heating element.
摘要翻译： 分布式布拉格反射器（DBR）包括基底和在基底上形成的增益介质。 位于基底基板上方的波导与增益介质光通信，并且沿着其长度的大部分限定在基底基板和波导之间延伸的间隙。 波导可以具有形成在其中的光栅。 加热元件与波导热接触并电耦合到控制器，该控制器被配置为通过控制供应给加热元件的功率来调节波导的光学性质。
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27.发明授权公开(公告)号：US07555225B2
公开(公告)日：2009-06-30
申请号：US11068032
申请日：2005-02-28
申请人： Daniel Mahgerefteh , Yasuhiro Matsui , Xueyan Zheng , Bart Johnson , Duncan Walker , Parviz Tayebati
发明人： Daniel Mahgerefteh , Yasuhiro Matsui , Xueyan Zheng , Bart Johnson , Duncan Walker , Parviz Tayebati
IPC分类号： H04B10/04
CPC分类号： H04B10/58 , H04B10/25137 , H04B10/508
摘要： An optical communication system which has an optical signal source adapted to receive a base binary signal and produce a first signal, said first signal being frequency modulated; andan optical spectrum reshaper adapted to reshape the first signal into a second signal, said second signal being amplitude modulated and frequency modulated in which the frequency characteristics of said first signal, and the optical characteristics of said optical spectrum reshaper, being such that the frequency characteristics of said second signal are configured so as to increase the tolerance of the second signal to dispersion in a transmission fiber.
摘要翻译： 一种光通信系统，其具有适于接收基本二进制信号并产生第一信号的光信号源，所述第一信号被频率调制; 以及适于将第一信号重新形成第二信号的光谱整形器，所述第二信号被幅度调制和频率调制，其中所述第一信号的频率特性和所述光谱整形器的光学特性使得频率 所述第二信号的特性被配置为增加第二信号对传输光纤中的色散的容差。
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公开(公告)号：US07406266B2
公开(公告)日：2008-07-29
申请号：US11084630
申请日：2005-03-18
IPC分类号： H04B10/04
CPC分类号： H04B10/508
摘要： A fiber optic communication system comprising: an optical signal source adapted to produce a binary amplitude modulated signal; and an optical spectrum reshaper adapted to receive the amplitude modulated signal and to change the instantaneous frequency of the signal at its 0-to-1 and 1-to-0 transitions so as to change the instantaneous frequency of the signal so that it is substantially constant across the 1 pulse. A method for transmitting a signal through a fiber, comprising: generating a second signal from the signal, wherein the second signal comprises a intensity profile and an adiabatic frequency profile; generating a third signal from the second signal, wherein the third signal comprises a intensity profile and a flat-topped frequency profile.
摘要翻译： 一种光纤通信系统，包括：适于产生二进制幅度调制信号的光信号源; 以及适于接收幅度调制信号并改变信号在其0到1和1到0转换处的瞬时频率的光谱整形器，以便改变信号的瞬时频率，使得其基本上 恒定在1脉冲。 一种用于通过光纤发送信号的方法，包括：从所述信号产生第二信号，其中所述第二信号包括强度分布和绝热频率分布; 从第二信号产生第三信号，其中第三信号包括强度分布和平顶频率分布。
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29.发明申请Integral Phase Rule for Reducing Dispersion Errors in an Adiabatically Chirped Amplitude Modulated Signal 有权用于减少绝对啁啾幅度调制信号中色散误差的积分相位规则公开(公告)号：US20080159747A1
公开(公告)日：2008-07-03
申请号：US11964321
申请日：2007-12-26
IPC分类号： 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在到达接收机时在中间零比特的中点处破坏性地干扰的一个比特。
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30.发明申请Optical FM source based on intra-cavity phase and amplitude modulation in lasers 有权基于激光器内腔内相位和幅度调制的光学FM源公开(公告)号：US20070286608A1
公开(公告)日：2007-12-13
申请号：US11787163
申请日：2007-04-13
IPC分类号： H04B10/04
CPC分类号： H04B10/5161 , H04B10/505 , H04B10/516 , H04B10/541 , H04B10/5563 , H04B2210/517
摘要： A fiber optic communication system comprising: an optical signal source adapted to receive a binary base signal having a bit period T, and generate a first signal, wherein the first signal is frequency modulated; and an optical spectrum reshaper (OSR) adapted to reshape the first signal into a second signal, wherein the second signal is amplitude modulated and frequency modulated; characterized in that: the optical signal source is a laser in which frequency modulation is generated by modulating the loss of the laser cavity. A method for transmitting a signal, comprising: receiving a binary base signal having a bit period T, and generating a first signal, wherein the first signal is frequency modulated; and reshaping the first signal into a second signal, wherein the second signal is amplitude modulated and frequency modulated; characterized in that: the first signal is frequency modulated by using a laser in which frequency modulation is generated by modulating the loss of the laser cavity. A fiber optic communication system comprising: an optical signal source adapted to receive a binary base signal having a bit period T, and generate a first signal, wherein the first signal is frequency modulated; and an optical spectrum reshaper (OSR) adapted to reshape the first signal into a second signal, wherein the second signal is amplitude modulated and frequency modulated; characterized in that: the optical signal source is a laser in which frequency modulation is generated by modulating the phase of the laser cavity.
摘要翻译： 一种光纤通信系统，包括：光信号源，适于接收具有位周期T的二进制基本信号，并产生第一信号，其中所述第一信号被频率调制; 以及适于将所述第一信号重新形成第二信号的光谱整形器（OSR），其中所述第二信号被幅度调制和频率调制; 其特征在于：光信号源是通过调制激光腔的损耗来产生频率调制的激光器。 一种用于发送信号的方法，包括：接收具有位周期T的二进制基本信号，并产生第一信号，其中第一信号被频率调制; 以及将所述第一信号重新形成第二信号，其中所述第二信号被幅度调制和频率调制; 其特征在于：通过使用通过调制激光腔的损耗产生频率调制的激光来对第一信号进行频率调制。 一种光纤通信系统，包括：光信号源，适于接收具有位周期T的二进制基本信号，并产生第一信号，其中所述第一信号被频率调制; 以及适于将所述第一信号重新形成第二信号的光谱整形器（OSR），其中所述第二信号被幅度调制和频率调制; 其特征在于：光信号源是通过调制激光腔的相位来产生频率调制的激光器。
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