公开(公告)号：US20060029396A1

公开(公告)日：2006-02-09

申请号：US11084630

申请日：2005-03-18

申请人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati ,  Xueyan Zheng

发明人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati ,  Xueyan Zheng

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。

公开(公告)号：US08027593B2

公开(公告)日：2011-09-27

申请号：US12028678

申请日：2008-02-08

申请人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

发明人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

IPC分类号： H04B10/12

CPC分类号： H04B10/504 ,  H04B10/58

摘要： The frequency chirp modulation response of a directly modulated laser is described using a small signal model that depends on slow chirp amplitude s and slow chirp time constant τs. The small signal model can be used to derive an inverse response for designing slow chirp compensation means. Slow chirp compensation means include electrical compensation, optical compensation, or both. Slow chirp electrical compensation can be implemented with an LR filter or other RF circuit coupled to a direct modulation source (e.g., a laser driver) and the directly modulated laser. Slow chirp optical compensation can be implemented with an optical spectrum reshaper having a rounded top and relatively large slope (e.g., 1.5-3 dB/GHz). The inverse response can be designed to under-compensate, to produce a flat response, or to over-compensate.

摘要翻译： 使用取决于慢啁啾振幅s和慢啁啾时间常数τs的小信号模型来描述直接调制激光器的频率啁啾调制响应。 小信号模型可用于导出用于设计慢啁啾补偿装置的反向响应。 慢啁啾补偿装置包括电补偿，光学补偿或两者。 可以使用耦合到直接调制源（例如，激光驱动器）和直接调制的激光器的LR滤波器或其它RF电路来实现慢啁啾电补偿。 可以用具有圆顶和较大斜率（例如，1.5-3dB / GHz）的光谱整形器实现慢啁啾光学补偿。 反向响应可以设计为欠补偿，产生平坦响应或过度补偿。

公开(公告)号：US20060039502A1

公开(公告)日：2006-02-23

申请号：US11157055

申请日：2005-06-20

申请人： Daniel Mahgerefteh ,  Xueyan Zheng ,  Parviz Tayebati

发明人： Daniel Mahgerefteh ,  Xueyan Zheng ,  Parviz Tayebati

IPC分类号： H04L27/04

CPC分类号： H04L27/361

摘要： A method of transmitting a base band binary data contained in respective successive time cells, the data being in the form of a signal obtained by amplitude modulation and frequency modulation of a carrier wave with a 0 bit data having a 0 bit mean amplitude and a 0 bit mean frequency and a 0 bit duration and a 1 bit data having a 1 bit mean amplitude and a 1 bit mean frequency and a 1 bit duration the improvement wherein the amplitude and frequency are modulated with the same binary base band signal whereby to decrease the spectral width of the resulting modulated signal below the spectral width of the base band signal. A method for transmitting a base band digital data signal having a bit period and a first bandwidth, comprising providing a carrier wave having a carrier amplitude and a carrier frequency, and synchronously modulating both the carrier amplitude and carrier frequency with the base band digital signal, so as to reduce the bandwidth of the modulated carrier wave below the bandwidth of the base band signal. A method for transmitting a base band digital data signal having a bit period and a first bandwidth, comprising providing a carrier wave having a carrier phase and a carrier frequency, and synchronously modulating both the carrier phase and carrier frequency with the base band digital signal, so as to reduce the bandwidth of the modulated carrier wave below the bandwidth of the base band signal.

摘要翻译： 一种发送包含在各个连续时间单元中的基带二进制数据的方法，该数据是通过具有0位平均幅度的0位数据的载波调幅和频率调制获得的信号的形式，以及0 位平均频率和0位持续时间以及具有1比特平均幅度和1比特平均频率和1比特持续时间的1比特数据，其中以相同的二进制基带信号调制幅度和频率，从而减少 所得调制信号的频谱宽度低于基带信号的频谱宽度。 一种用于发送具有位周期和第一带宽的基带数字数据信号的方法，包括提供具有载波幅度和载波频率的载波，并且使用基带数字信号同时调制载波幅度和载波频率， 以便将调制载波的带宽降低到基带信号的带宽以下。 一种用于发送具有位周期和第一带宽的基带数字数据信号的方法，包括：提供具有载波相位和载波频率的载波，并且使用所述基带数字信号同时调制载波相位和载波频率， 以便将调制载波的带宽降低到基带信号的带宽以下。

公开(公告)号：US20080193144A1

公开(公告)日：2008-08-14

申请号：US12028678

申请日：2008-02-08

申请人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

发明人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

IPC分类号： H04B10/04

CPC分类号： H04B10/504 ,  H04B10/58

摘要： The frequency chirp modulation response of a directly modulated laser is described using a small signal model that depends on slow chirp amplitude s and slow chirp time constant τs. The small signal model can be used to derive an inverse response for designing slow chirp compensation means. Slow chirp compensation means include electrical compensation, optical compensation, or both. Slow chirp electrical compensation can be implemented with an LR filter or other RF circuit coupled to a direct modulation source (e.g., a laser driver) and the directly modulated laser. Slow chirp optical compensation can be implemented with an optical spectrum reshaper having a rounded top and relatively large slope (e.g., 1.5-3 dB/GHz). The inverse response can be designed to under-compensate, to produce a flat response, or to over-compensate.

摘要翻译： 使用取决于慢啁啾振幅s和慢啁啾时间常数τ的小信号模型来描述直接调制激光器的频率啁啾调制响应。 小信号模型可用于导出用于设计慢啁啾补偿装置的反向响应。 慢啁啾补偿装置包括电补偿，光学补偿或两者。 可以使用耦合到直接调制源（例如，激光驱动器）和直接调制的激光器的LR滤波器或其它RF电路来实现慢啁啾电补偿。 可以用具有圆顶和较大斜率（例如，1.5-3dB / GHz）的光谱整形器实现慢啁啾光学补偿。 反向响应可以设计为欠补偿，产生平坦响应或过度补偿。

公开(公告)号：US07613401B2

公开(公告)日：2009-11-03

申请号：US11787163

申请日：2007-04-13

申请人： Yasuhiro Matsui ,  Parviz Tayebati ,  Daniel Mahgerefteh

发明人： Yasuhiro Matsui ,  Parviz Tayebati ,  Daniel Mahgerefteh

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。

公开(公告)号：US07480464B2

公开(公告)日：2009-01-20

申请号：US11635861

申请日：2006-12-08

申请人： Kevin McCallion ,  Yasuhiro Matsui ,  Jianying Zhou ,  Michael Deutsch ,  Parviz Tayebati ,  Daniel Mahgerefteh

发明人： Kevin McCallion ,  Yasuhiro Matsui ,  Jianying Zhou ,  Michael Deutsch ,  Parviz Tayebati ,  Daniel Mahgerefteh

IPC分类号： H04J14/02 ,  H04B10/04

CPC分类号： H01S5/4006 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/4087

摘要： An optical transmitter comprising: (i) an electrical switch; (ii) a laser array comprising a plurality of tunable laser elements; and (iii) an Optical Spectrum Reshaper (OSR) used to reshape the output pulses from the laser elements in the laser array; wherein the electrical switch takes an input electrical digital signal and selectively directs it to a specific laser element in the DFB laser array.

摘要翻译： 一种光发射机，包括：（i）电开关; （ii）包括多个可调谐激光元件的激光器阵列; 和（iii）用于重新形成来自激光器阵列中的激光元件的输出脉冲的光谱整形器（OSR）; 其中电开关采用输入电数字信号，并选择性地将其引导到DFB激光器阵列中的特定激光元件。

公开(公告)号：US07356264B2

公开(公告)日：2008-04-08

申请号：US11016466

申请日：2004-12-17

申请人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati

发明人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati

IPC分类号： H04B10/04

CPC分类号： H04B10/25137

摘要： A fiber optic transmitter comprising: a digital driver adapted to adjust the rise time and fall time of a digital input signal; an optical source adapted to receive the digital 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 an optical signal through a fiber comprising: receiving a digital input signal; adjusting the rise time and fall time of the digital input signal so as to produce an adjusted digital input signal; passing the adjusted digital input signal to an optical source so as to produce a frequency modulated optical signal; passing the frequency modulated optical signal through an optical spectrum reshaper so as to convert the frequency modulated optical signal to an amplitude modulated optical signal; and passing the amplitude modulated signal into the fiber.

摘要翻译： 一种光纤发射机，包括：数字驱动器，适于调整数字输入信号的上升时间和下降时间; 适于接收数字信号并产生调频光信号的光源; 以及适于将调频光信号转换为调幅光信号的光谱整形器。 一种通过光纤发送光信号的方法，包括：接收数字输入信号; 调整数字输入信号的上升时间和下降时间，以产生经调整的数字输入信号; 将经调整的数字输入信号传送到光源，以产生调频光信号; 使调频光信号通过光谱整形器，以将调频光信号转换成调幅光信号; 并将幅度调制信号传递到光纤中。

公开(公告)号：US20070183792A1

公开(公告)日：2007-08-09

申请号：US11635861

申请日：2006-12-08

申请人： Kevin McCallion ,  Yasuhiro Matsui ,  Jianying Zhou ,  Michael Deutsch ,  Parviz Tayebati ,  Daniel Mahgerefteh

发明人： Kevin McCallion ,  Yasuhiro Matsui ,  Jianying Zhou ,  Michael Deutsch ,  Parviz Tayebati ,  Daniel Mahgerefteh

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： H01S5/4006 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/4087

摘要： An optical transmitter comprising: (i) an electrical switch; (ii) a laser array comprising a plurality of tunable laser elements; and (iii) an Optical Spectrum Reshaper (OSR) used to reshape the output pulses from the laser elements in the laser array; wherein the electrical switch takes an input electrical digital signal and selectively directs it to a specific laser element in the DFB laser array.

摘要翻译： 一种光发射机，包括：（i）电开关; （ii）包括多个可调谐激光元件的激光器阵列; 和（iii）用于重新形成来自激光器阵列中的激光元件的输出脉冲的光谱整形器（OSR）; 其中电开关采用输入电数字信号，并选择性地将其引导到DFB激光器阵列中的特定激光元件。

公开(公告)号：US20050169642A1

公开(公告)日：2005-08-04

申请号：US11016466

申请日：2004-12-17

申请人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati

发明人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Parviz Tayebati

IPC分类号： G02B6/34 ,  H04B10/04

CPC分类号： H04B10/25137

摘要： A fiber transmitter comprising: a digital driver adapted to adjust the rise time and fall time of a digital input signal; an optical source adapted to receive the digital 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 an optical signal through a fiber comprising: receiving a digital input signal; adjusting the rise time and fall time of the digital input signal so as to produce an adjusted digital input signal; passing the adjusted digital input signal to an optical source so as to produce a frequency modulated optical signal; passing the frequency modulated optical signal through an optical spectrum reshaper so as to convert the frequency modulated optical signal to an amplitude modulated optical signal; and passing the amplitude modulated signal into the fiber.

摘要翻译： 一种光纤发射机，包括：适于调整数字输入信号的上升时间和下降时间的数字驱动器; 适于接收数字信号并产生调频光信号的光源; 以及适于将调频光信号转换为调幅光信号的光谱整形器。 一种通过光纤发送光信号的方法，包括：接收数字输入信号; 调整数字输入信号的上升时间和下降时间，以产生经调整的数字输入信号; 将经调整的数字输入信号传送到光源，以产生调频光信号; 使调频光信号通过光谱整形器，以将调频光信号转换成调幅光信号; 并将幅度调制信号传递到光纤中。

公开(公告)号：US07536113B2

公开(公告)日：2009-05-19

申请号：US11037718

申请日：2005-01-18

申请人： Yasuhiro Matsui ,  Duncan Walker ,  Daniel Mahgerefteh ,  Parviz Tayebati

发明人： Yasuhiro Matsui ,  Duncan Walker ,  Daniel Mahgerefteh ,  Parviz Tayebati

IPC分类号： H04B10/06

CPC分类号： H04B10/504

摘要： A fiber optic communication system, comprising: an optical signal source adapted to produce a frequency modulated signal; and an optical spectrum reshaper adapted to receive the frequency modulated signal and output a substantially amplitude modulated signal; wherein the optical spectrum reshaper limits the bandwidth of the frequency modulated signal.

摘要翻译： 一种光纤通信系统，包括：适于产生调频信号的光信号源; 以及适于接收所述调频信号并输出​​基本幅度调制信号的光谱整形器; 其中光谱整形器限制了调频信号的带宽。