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公开(公告)号：US07609977B2
公开(公告)日：2009-10-27
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 is disclosed having an optical signal source adapted to produce an amplitude and frequency modulated signal encoding binary data wherein high intensity 1 bits are red shifted relative to lower intensity 0 bits. The amplitude and frequency modulated signal is transmitted through a semiconductor optical amplifier (SOA), which may operate in saturation. An optical spectrum reshaper (OSR) is adapted to reshape the output of the SOA.
摘要翻译： 公开了一种具有光信号源的光纤通信系统，其适于产生编码二进制数据的幅度和频率调制信号，其中高强度1比特相对于较低强度0比特红移。 幅度和调频信号通过半导体光放大器（SOA）传输，这可以在饱和状态下工作。 光谱整形器（OSR）适用于重新形成SOA的输出。
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12.发明授权公开(公告)号：US07474859B2
公开(公告)日：2009-01-06
申请号：US11784395
申请日：2007-04-06
IPC分类号： H04B10/04 , H04B10/155
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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13.发明申请CHIRPED LASER WITH PASSIVE FILTER ELEMENT FOR DIFFERENTIAL PHASE SHIFT KEYING GENERATION 有权带有被动滤波器元件的激光激光器，用于差分相移键控发生器公开(公告)号：US20080247763A1
公开(公告)日：2008-10-09
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：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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15.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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17.发明授权Integral phase rule for reducing dispersion errors in an adiabatically chirped amplitude modulated signal 有权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
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。
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18.发明申请OPTICAL FM SOURCE BASED ON INTRA-CAVITY PHASE AND AMPLITUDE MODULATION IN LASERS 有权基于激光相位和振幅调制的光学FM源公开(公告)号：US20090060526A1
公开(公告)日：2009-03-05
申请号：US12047017
申请日：2008-03-12
CPC分类号： H04B10/25133 , G02B6/12007 , G02B6/29319 , G02B6/29343 , G02B6/29358 , H01S5/0085 , H01S5/0265 , H01S5/06255 , H01S5/1003 , H01S5/1209 , H01S5/141 , H01S5/142 , H01S5/146 , H04B10/504 , H04B10/505 , H04B10/548
摘要： An optical transmitter is discloses having a gain section and a phase section. The phase section is modulated to generate a frequency modulated signal encoding data. The frequency modulated signal is transmitted through an optical spectrum reshaper operable to convert it into a frequency and amplitude modulated signal. In some embodiments, a driving circuit is coupled to the phase and gain sections is configured to simultaneously modulate both the phase and gain sections such that the first signal is both frequency and amplitude modulated.
摘要翻译： 公开了一种具有增益部分和相位部分的光发射机。 相位部分被调制以产生频率调制信号编码数据。 频率调制信号通过可用于将其转换成频率和幅度调制信号的光谱分层传输。 在一些实施例中，驱动电路耦合到相位，并且增益部分被配置为同时调制相位和增益部分两者，使得第一信号是频率和幅度调制的。
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19.发明授权Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter 有权使用直接调制发射机的热啁啾管理发送信号的方法和装置公开(公告)号：US07406267B2
公开(公告)日：2008-07-29
申请号：US10933081
申请日：2004-09-02
申请人： Daniel Mahgerefteh , Roeland Nuyts , Yasuhiro Matsui , Parviz Tayebati , Bart Johnson , Duncan Walker , Xueyan Zheng
发明人： Daniel Mahgerefteh , Roeland Nuyts , Yasuhiro Matsui , Parviz Tayebati , Bart Johnson , Duncan Walker , Xueyan Zheng
IPC分类号： H04B10/04
CPC分类号： H04B10/504 , G02B5/281 , G02B6/29358 , G02B6/29362 , G02B6/29394 , G02B6/29398 , H04B10/25133 , H04B10/58
摘要： A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal.A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.
摘要翻译： 一种光纤发射器，包括适于调节数字基本信号的交叉点的数字驱动器，适于接收数字基本信号并产生调频光信号的光源，以及适于将频率调制光 信号到幅度调制光信号。 一种用于发送信号的方法，包括：调整数字基本信号的交叉点; 将经调整的信号提供给光源以产生调频光信号; 并将频率调制的光信号提供给光谱整形器，以将频率调制的光信号转换成幅度调制的光信号。
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20.发明申请公开(公告)号：US20060029397A1
公开(公告)日：2006-02-09
申请号：US11084633
申请日：2005-03-18
IPC分类号： H04B10/04
CPC分类号： H04B10/508
摘要： There is provided method for transmitting binary data contained in respective successive time cells, the data being in the form of an optical signal obtained by amplitude modulation and frequency modulation of an optical carrier wave, with a 0 bit data value having a 0 bit mean amplitude having a 0 bit amplitude time duration and a 0 bit frequency having a 0 bit frequency duration, and a 1 bit data value having a 1 bit mean amplitude having a 1 bit amplitude time duration and a 1 bit frequency having a 1 bit frequency duration; the improvement wherein: independently adjusting the 0 bit mean amplitude relative to the 1 bit mean amplitude; independently adjusting the 0 bit frequency relative to the 1 bit frequency; and independently adjusting time duration of the frequency profile of the 1 bit relative to the time duration of the amplitude profile of the 1 bit, whereby to extend the error-free propagation of the optical signal though a dispersive optical fiber beyond the dispersion limit. There is provided a method for transmitting Non-Return-To-Zero (NRZ) binary data contained in respective successive time cells, the data being in the form of an optical signal obtained by amplitude modulation and frequency modulation of an optical carrier wave, with a 0 bit data value having a 0 bit mean amplitude having a 0 bit amplitude time duration and a 0 bit frequency having a 0 bit frequency duration, and a 1 bit data value having a 1 bit mean amplitude having a 1 bit amplitude time duration and a 1 bit frequency having a 1 bit frequency duration; the improvement wherein: the phase across each 1 bit data value is substantially constant, and the phase of the carrier changes across each and every 0 bit by an amount equal to the product of the frequency difference between the 1 bit and the 0 bit and the duration of the 0 bit; whereby to extend the error-free propagation of the optical signal though a dispersive optical fiber beyond the dispersion limit. In accordance with one form of the present invention, there is provided a method for transmitting binary data contained in respective successive time cells, the data being in the form of an optical signal obtained by amplitude modulation and frequency modulation of an optical carrier wave, with a 0 bit data value having a 0 bit mean amplitude having a 0 bit amplitude time duration and a 0 bit frequency having a 0 bit frequency duration, and a 1 bit data value having a 1 bit mean amplitude having a 1 bit amplitude time duration and a 1 bit frequency having a 1 bit frequency duration; the improvement wherein: the amplitude profile of the 1 bit is substantially bell-shaped, and the frequency profile of the 1 bit is substantially square-shaped, with steeper rise and fall time and a wider flat top region; whereby to extend the error-free propagation of the optical signal though a dispersive optical fiber beyond the dispersion limit.
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