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11.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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12.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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公开(公告)号：US20060029358A1
公开(公告)日：2006-02-09
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： H04N11/02
CPC分类号： H04B10/58 , H04B10/25137 , H04B10/508
摘要： In one form of the present invention, there is provided a fiber optic communication system comprising: an optical signal source adapted to receive a base binary signal and produce a first signal, said first signal being frequency modulated; and an optical spectrum reshaper adapted to reshape the first signal into a second signal, said second signal being amplitude modulated and frequency modulated; characterized in that: 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. In another form of the present invention, there is provided an optical transmitter comprising: a frequency modulated source for generating a first frequency modulated signal, and an amplitude modulator for receiving the first frequency modulated signal and for generating a second amplitude and frequency modulated signal. In another form of the present invention, there is provided a method for transmitting an optical signal through a transmission fiber comprising: receiving a base binary signal; operating an optical signal source using the base binary signal to produce a first signal, said first signal being frequency modulated; passing the frequency modulated signal through an optical spectrum reshaper so as to reshape the first signal into a second signal, said second signal being amplitude modulated and frequency modulated; 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; and passing the second signal through a transmission fiber. In another form of the present invention, there is provided a method for transmitting a base signal, comprising: using the base signal to produce a frequency modulated signal; and providing an amplitude modulator for receiving the frequency modulated signal and for generating an amplitude and frequency modulated signal.
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公开(公告)号：US07809280B2
公开(公告)日：2010-10-05
申请号：US11894477
申请日：2007-08-21
申请人： Daniel Mahgerefteh , Yasuhiro Matsui , Xueyan Zheng , Bart Johnson , Duncan J W Walker , Parviz Tayebati
发明人： Daniel Mahgerefteh , Yasuhiro Matsui , Xueyan Zheng , Bart Johnson , Duncan J W Walker , Parviz Tayebati
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/25137 , H04B10/504
摘要： An optical transmitter comprising: an optical source modulated with an input digital data signal so as to generate a first, frequency-modulated digital signal; and an amplitude modulator, modulated with the logical inverse of the input digital data signal, for receiving the first, frequency-modulated signal and generating a second, amplitude-modulated and frequency-modulated digital signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp. A method for transmitting a signal, the method comprising: generating a first, frequency-modulated digital signal by modulating an optical source with an input digital data signal; and providing a second, amplitude-modulated and frequency-modulated digital signal by passing the first, frequency-modulated digital signal through an amplitude modulator while modulating the amplitude modulator with the logical inverse of the input digital data signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.
摘要翻译： 一种光发射机，包括：用输入数字数据信号调制的光源，以产生第一调频数字信号; 以及用输入数字数据信号的逻辑反相调制的幅度调制器，用于接收第一频率调制信号并产生第二幅度调制和调频数字信号; 其中光源和幅度调制器各自被配置为产生正瞬态啁啾。 一种用于发送信号的方法，所述方法包括：通过用输入数字数据信号调制光源来产生第一调频数字信号; 以及通过使所述第一调频数字信号通过幅度调制器，同时用所输入的数字数据信号的逻辑反相调制所述振幅调制器来提供第二幅度调制和调频数字信号; 其中光源和幅度调制器各自被配置为产生正瞬态啁啾。
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15.发明授权Method and apparatus for transmitting a signal using a chirp managed laser (CML) and an optical spectrum reshaper (OSR) before an optical receiver 有权在光接收机之前使用啁啾管理激光器（CML）和光谱整形器（OSR）发射信号的方法和装置公开(公告)号：US07639955B2
公开(公告)日：2009-12-29
申请号：US11447662
申请日：2006-06-06
IPC分类号： H04B10/06
CPC分类号： H04B10/675 , H04B10/25137
摘要： A method for transmitting a signal and a fiber optic system comprising: a frequency modulated source; an optical transmission fiber positioned to receive the output of the frequency modulated source; an optical filter positioned to receive the output of the optical transmission fiber; and an optical receiver positioned to receive the output of the optical filter; characterized in that: an optical spectrum reshaper is positioned between the frequency modulated source and the optical transmission fiber; and wherein the optical filter is a narrow band pass filter relative to the bit rate of the transmitted signal; and further wherein the frequency excursion of the frequency modulated source is between 20% and 120% of the bit rate frequency.
摘要翻译： 一种用于发送信号和光纤系统的方法，包括：频率调制源; 定位成接收频率调制源的输出的光传输光纤; 定位成接收光传输光纤的输出的光学滤波器; 以及定位成接收所述滤光器的输出的光接收器; 其特征在于：光谱调制器位于调频源和光传输光纤之间; 并且其中所述滤光器是相对于所发射信号的比特率的窄带通滤波器; 并且其中所述频率调制源的频率偏移在所述比特率频率的20％至120％之间。
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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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17.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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18.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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20.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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