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31. 发明申请

US20080193144A1 SLOW CHIRP COMPENSATION FOR ENHANCED SIGNAL BANDWIDTH AND TRANSMISSION PERFORMANCES IN DIRECTLY MODULATED LASERS 有权
标题翻译：直接调制激光器增强信号带宽和传输性能的SLOW CHIRP补偿
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。

32. 发明申请

US20080159751A1 Optical transmission using semiconductor optical amplifier (SOA) 有权
标题翻译：使用半导体光放大器（SOA）的光传输
公开(公告)号：US20080159751A1
公开(公告)日：2008-07-03
申请号：US11894509
申请日：2007-08-20
申请人： Yasuhiro Matsui , Daniel Mahgerefteh , Xueyan Zheng , Kevin J. McCallion , Parviz Tayebati
发明人： Yasuhiro Matsui , Daniel Mahgerefteh , Xueyan Zheng , Kevin J. McCallion , Parviz Tayebati
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。

33. 发明授权

US07376352B2 Chirp managed laser fiber optic system including an adaptive receiver 有权
标题翻译：啁啾管理激光光纤系统，包括一个自适应接收机
公开(公告)号：US07376352B2
公开(公告)日：2008-05-20
申请号：US11015686
申请日：2004-12-17
申请人： Parviz Tayebati , Daniel Mahgerefteh , Kevin McCallion
发明人： Parviz Tayebati , Daniel Mahgerefteh , Kevin McCallion
IPC分类号： H04B10/16
CPC分类号： H04B10/25137 , H04B10/695
摘要： A fiber optic communication system comprising: an optical signal source adapted to produce a frequency modulated signal; and an optical spectrum reshaper (OSR) adapted to convert the frequency modulated signal into a substantially amplitude modulated signal, wherein the optical spectrum reshaper is adapted to compensate for at least a portion of a dispersion in a transmission fiber; and further including a transmission fiber coupled to the optical source, a receiver and a decision circuit coupled to the transmission fiber.
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; 以及适于将所述调频信号转换成基本幅度调制信号的光谱整形器（OSR），其中所述光谱整形器适于补偿传输光纤中的色散的至少一部分; 并且还包括耦合到所述光源的传输光纤，接收器和耦合到所述传输光纤的判定电路。

34. 发明申请

US20080025731A1 Versatile compact transmitter for generation of advanced modulation formats 有权
标题翻译：多功能紧凑型发射机，用于生成高级调制格式
公开(公告)号：US20080025731A1
公开(公告)日：2008-01-31
申请号：US11784395
申请日：2007-04-06
申请人： Daniel Mahgerefteh , Xueyan Zheng , Yasuhiro Matsui , Parviz Tayebati
发明人： Daniel Mahgerefteh , Xueyan Zheng , Yasuhiro Matsui , Parviz Tayebati
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。

35. 发明申请

US20080002990A1 Multi-ring resonator implementation of optical spectrum reshaper for chirp managed laser technology 有权
标题翻译：啁啾管理激光技术的光谱整形多环谐振器实现
公开(公告)号：US20080002990A1
公开(公告)日：2008-01-03
申请号：US11702436
申请日：2007-02-05
申请人： Kevin McCallion , Parviz Tayebati
发明人： Kevin McCallion , Parviz Tayebati
IPC分类号： G02B6/34
CPC分类号： G02B6/12007 , G02B6/29343
摘要： There is provided a fiber optic transmission system, comprising: an optical signal source adapted to produce a frequency modulated signal; and a multi-ring resonator optical spectrum reshaper (OSR) adapted to convert the frequency modulated signal into a substantially amplitude modulated signal. And there is provided a method for transmitting an optical signal through a fiber comprising: producing a frequency modulated signal; passing the frequency modulated signal through a multi-ring resonator optical spectrum reshaper (OSR) so as to convert the frequency modulated signal into a substantially amplitude modulated signal; and passing the substantially amplitude modulated signal into the fiber.
摘要翻译：提供了一种光纤传输系统，包括：适于产生调频信号的光信号源; 以及适于将调频信号转换为基本幅度调制信号的多环谐振器光谱整形器（OSR）。并且提供了一种通过光纤发送光信号的方法，包括：产生调频信号; 通过多环谐振器光谱整形器（OSR）使调频信号通过，以便将调频信号转换成基本幅度调制信号; 并将大致幅度调制信号传送到光纤中。

36. 发明申请

US20060029396A1 Flat-topped chirp induced by optical filter edge 有权
标题翻译：由滤光片边缘引起的平顶啁啾
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。

37. 发明申请

US20050271392A1 Reach extension by using external bragg grating for spectral filtering 有权
标题翻译：通过使用外部布拉格光栅进行光谱滤波达到延伸
公开(公告)号：US20050271392A1
公开(公告)日：2005-12-08
申请号：US11093461
申请日：2005-03-30
申请人： Yasuhiro Matsui , Parviz Tayebati , Kevin McCallion
发明人： Yasuhiro Matsui , Parviz Tayebati , Kevin McCallion
IPC分类号： H04B10/04 , H04B10/155
CPC分类号： H04B10/504
摘要： A fiber optic system comprising a modulated signal source coupled to a spectral filtering element characterized in that the bandwidth of the optical spectrum of the signal after the spectral filtering element is reduced relative to the optical bandwidth of the spectrum before the filtering element.
摘要翻译：一种光纤系统，包括耦合到频谱滤波元件的调制信号源，其特征在于频谱滤波元件之后的信号的光谱的带宽相对于滤波元件之前的频谱的光带宽减小。

38. 发明授权

US06819466B2 Asymmetric fabry-perot modulator with a micromechanical phase compensating cavity 失效
标题翻译：具有微机械相位补偿腔的不对称fabry-perot调制器
公开(公告)号：US06819466B2
公开(公告)日：2004-11-16
申请号：US10036125
申请日：2001-12-26
申请人： Parviz Tayebati
发明人： Parviz Tayebati
IPC分类号： G02F103
CPC分类号： B82Y20/00 , G02F1/01708
摘要： An asymmetric Fabry-Perot modulator is disclosed having an adjustable resonant cavity length. A preferred embodiment of the invention includes an asymmetric Fabry-Perot modulator having a first reflector adjustably mounted to another portion of the modulator containing a second reflector. The length of the resonant cavity is adjusted by microelectomechanically changing the distance from the first reflector to the second reflector. In turn, this change of the resonant cavity length may tune the modulator to an optimal wavelength corresponding to the electro-absorptance material in the modulator.
摘要翻译：公开了具有可调谐谐振腔长度的非对称法布里 - 珀罗调制器。本发明的优选实施例包括不对称法布里 - 珀罗调制器，其具有可调节地安装到包含第二反射器的调制器的另一部分的第一反射器。通过微电子机械地改变从第一反射器到第二反射器的距离来调节谐振腔的长度。反过来，谐振腔长度的这种变化可以将调制器调谐到对应于调制器中的电吸收材料的最佳波长。

39. 发明授权

US06744805B2 Single mode operation of microelectromechanically tunable, half-symmetric, vertical cavity surface emitting lasers 失效
标题翻译：微机电可调谐，半对称，垂直腔表面发射激光器的单模操作
公开(公告)号：US06744805B2
公开(公告)日：2004-06-01
申请号：US10255401
申请日：2002-09-26
申请人： Peidong Wang , Parviz Tayebati , Daryoosh Vakhshoori
发明人： Peidong Wang , Parviz Tayebati , Daryoosh Vakhshoori
IPC分类号： H01S308
CPC分类号： H01S5/18366 , H01S5/18308 , H01S5/18311 , H01S5/18388 , H01S2301/163 , H01S2301/166
摘要： A method is provided for fabricating microelectromechanically tunable vertical-cavity surface-emitting lasers with precise lateral and vertical dimensional control. Microelectromechanical tunable vertical cavity surface emitting laser structures are also provided which include a suspended membrane structure made of a dielectric/metal membrane or metal film that supports a cavity-tuning reflective dielectric film stack while being anchored at the perimeter by metal support post(s). Tuning is achieved by translational movement of the cavity-tuning reflective dielectric film stack in a controlled electrostatic field. The current invention deals with the intracavity electrical contacts for current injection for this type of MEM-tunable VCSEL's. The current invention also includes various mechanisms to control the current injection profile so as to ensure single mode operation throughout the tuning range of the MEM-tunable VCSEL's.
摘要翻译：提供了一种用于制造具有精确横向和垂直尺寸控制的微机电可调垂直腔表面发射激光器的方法。还提供了微电子机械可调谐垂直腔表面发射激光器结构，其包括由电介质/金属膜或金属膜制成的悬浮膜结构，该膜结构在通过金属支撑柱在周边锚定的同时支撑腔调谐反射介电膜堆叠，。调谐是通过腔调谐反射介电膜堆叠在受控静电场中的平移运动来实现的。本发明涉及用于这种MEM可调谐VCSEL的电流注入的腔内电触头。本发明还包括控制电流注入分布的各种机制，以确保在MEM可调VCSEL的整个调谐范围内的单模操作。

40. 发明授权

US06504611B2 Two stage optical alignment device and method of aligning optical components 失效
公开(公告)号：US06504611B2
公开(公告)日：2003-01-07
申请号：US09859778
申请日：2001-05-17
申请人： Yakov Kogan , Parviz Tayebati , Daryoosh Vakhshoori
发明人： Yakov Kogan , Parviz Tayebati , Daryoosh Vakhshoori
IPC分类号： G01B1100
CPC分类号： G02B6/4225 , G01B11/27 , G02B6/4221 , G02B6/4226
摘要： A method and an automated apparatus for three-dimensional optical alignment of optical components for testing or assembly purposes comprise use of a visible light vision system to assist active alignment of optical components based on the measured optical output at a wavelength of light outside of the visible range.

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