专利检索_ .光调制格式的转换例如从光通断键控专利检索_ .光调制格式的转换例如从光通断键控专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
1	包括FM源和光谱整形元件的光学系统	CN200580012705.4	2005-02-28	CN101073210B	2013-04-17	D·马哈格里夫特; Y·马特休; X·郑; B·约翰逊; D·沃克; P·塔耶巴蒂
一种光纤通信系统，包括：光信号源，其适用于接收基本二进制信号并产生第一调频信号；以及光谱整形器或调幅器，其适用于将第一信号整形成第二调幅和调频信号；其特征在于，所述第一信号的频率特征和所述光谱整形器的光学特征使得所述第二信号的频率特征被配置成以便增加第二信号对传输光纤中色散的容限。在本发明的另一种形式中，提供了一种发射基本信号的方法，其包括：利用基本信号产生调频信号；以及提供调幅器以接收调频信号并生成调幅和调频信号。
2	包括FM源和光谱整形元件的光学系统	CN200580012705.4	2005-02-28	CN101073210A	2007-11-14	D·马哈格里夫特; Y·马特休; X·郑; B·约翰逊; D·沃克; P·塔耶巴蒂
一种光纤通信系统，包括：光信号源，其适用于接收基本二进制信号并产生第一调频信号；以及光谱整形器或调幅器，其适用于将第一信号整形成第二调幅和调频信号；其特征在于，所述第一信号的频率特征和所述光谱整形器的光学特征使得所述第二信号的频率特征被配置成以便增加第二信号对传输光纤中色散的容限。在本发明的另一种形式中，提供了一种发射基本信号的方法，其包括：利用基本信号产生调频信号；以及提供调幅器以接收调频信号并生成调幅和调频信号。
3	ALL-OPTICAL SILICON-PHOTONIC CONSTELLATION CONVERSION OF AMPLITUDE-PHASE MODULATION FORMATS	US15514762	2015-10-01	US20170222729A1	2017-08-03	Dan SADOT; Zeev ZALEVSKY; Tomer YEMINY
A method for performing optical constellation conversion, according to which each received symbol from a constellation of input symbols is optically split into M components and each component is multiplied by a first predetermined different complex weighing factor, to achieve M firstly weighted components with different amplitudes. Then a nonlinear processor optically performs a nonlinear transform on each M firstly weighted components, so as to obtain M outputs which are linearly independent, Finally, a linear processor optically performs a linear transform to obtain a new converted constellation by optically multiplying, in the complex plane, each of the M outputs by a second predetermined different complex weighing factor, to achieve M secondly weighted components and then summing the M secondly weighted components.
4	Optical square QAM signal emulation using all-optical PAM to QAM signal conversion	US14511560	2014-10-10	US09369211B2	2016-06-14	Yue Kai Huang; Shaoliang Zhang; Ezra Ip
An optical communication method includes converting an optical pulse amplitude modulation (PAM) signal to a square QAM signal using an optical delay interferometer (DI) to perform all-optical PAM to QAM conversion in the DI; performing optical de-correlation of I and Q tributaries of the QAM signal to avoid frequency dependent attenuation in RF cabling which impacts signal quality; and finding optimal phase control mechanism of the DI by monitoring and equalizing down-converted I and Q electrical signal amplitudes, using coherent detection; and emulating a square quadrature amplitude modulation (QAM) optical signal with duplicated data copies.
5	Chirped managed, wavelength multiplexed, directly modulated sources using an arrayed waveguide grating (AWG) as multi-wavelength discriminator	US11016020	2004-12-17	US20050163512A1	2005-07-28	Parviz Tayebati; Daniel Mahgerefteh; Kevin McCallion
There is provided a fiber optic system comprising: a multi-wavelength source adapted to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; and an arrayed waveguide grating adapted to convert the multiplicity of frequency modulated signals into a multiplicity of substantially amplitude modulated signals, and spatially combine the different wavelengths λ1, λ2, . . . , λn. And there is provided a method for transmitting an optical signal through a fiber comprising: operating a multi-wavelength source so as to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; passing the frequency modulated signals through an arrayed waveguide grating so as to convert the frequency modulated signals into substantially amplitude modulated signals, and spatially combine the different wavelengths λ1, λ2, . . . , λn; and passing the substantially amplitude modulated signals into the fiber. And there is provided a fiber optic system comprising: a multi-wavelength source adapted to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; and a beam combiner adapted to spatially combine the signals having different wavelengths and pass them into a periodic optical spectrum reshaper (OSR) to generate a plurality of substantially amplitude modulated signals having wavelengths λ1, λ2, . . . , λn.
6	All-optical silicon-photonic constellation conversion of amplitude-phase modulation formats	US15514762	2015-10-01	US09954620B2	2018-04-24	Dan Sadot; Zeev Zalevsky; Tomer Yeminy
A method for performing optical constellation conversion, according to which each received symbol from a constellation of input symbols is optically split into M components and each component is multiplied by a first predetermined different complex weighing factor, to achieve M firstly weighted components with different amplitudes. Then a nonlinear processor optically performs a nonlinear transform on each M firstly weighted components, so as to obtain M outputs which are linearly independent, Finally, a linear processor optically performs a linear transform to obtain a new converted constellation by optically multiplying, in the complex plane, each of the M outputs by a second predetermined different complex weighing factor, to achieve M secondly weighted components and then summing the M secondly weighted components.
7	Optical Square QAM Signal Emulation Using All-Optical PAM to QAM Signal Conversion	US14511560	2014-10-10	US20150104192A1	2015-04-16	Yue Kai Huang; Shaoliang Zhang; Ezra Ip
An optical communication method includes converting an optical pulse amplitude modulation (PAM) signal to a square QAM signal using an optical delay interferometer (DI) to perform all-optical PAM to QAM conversion in the DI; performing optical de-correlation of I and Q tributaries of the QAM signal to avoid frequency dependent attenuation in RF cabling which impacts signal quality; and finding optimal phase control mechanism of the DI by monitoring and equalizing down-converted I and Q electrical signal amplitudes, using coherent detection; and emulating a square quadrature amplitude modulation (QAM) optical signal with duplicated data copies.
8	Chirped managed, wavelength multiplexed, directly modulated sources using an arrayed waveguide grating (AWG) as multi-wavelength discriminator	US11016020	2004-12-17	US07352968B2	2008-04-01	Parviz Tayebati; Daniel Mahgerefteh; Kevin McCallion
There is provided a fiber optic system comprising: a multi-wavelength source adapted to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; and an arrayed waveguide grating adapted to convert the multiplicity of frequency modulated signals into a multiplicity of substantially amplitude modulated signals, and spatially combine the different wavelengths λ1, λ2, . . . , λn. And there is provided a method for transmitting an optical signal through a fiber comprising: operating a multi-wavelength source so as to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; passing the frequency modulated signals through an arrayed waveguide grating so as to convert the frequency modulated signals into substantially amplitude modulated signals, and spatially combine the different wavelengths λ1, λ2, . . . , λn; and passing the substantially amplitude modulated signals into the fiber. And there is provided a fiber optic system comprising: a multi-wavelength source adapted to generate frequency modulated signals having different wavelengths, λ1, λ2, . . . , λn; and a beam combiner adapted to spatially combine the signals having different wavelengths and pass them into a periodic optical spectrum reshaper (OSR) to generate a plurality of substantially amplitude modulated signals having wavelengths λ1, λ2, . . . , λn.
9	Fm source and the optical system with a spectral shaping element	JP2007500803	2005-02-28	JP4584304B2	2010-11-17	ウォーカー，ダンカン; ジェン，ジュエヤン; ジョンソン，バート; タイェバティ，パーヴィズ; マーゲレフテー，ダニエル; マツイ，ヤスヒロ

10	Fm source and the optical system with a spectral shaping element	JP2007500803	2005-02-28	JP2007525909A	2007-09-06	ウォーカー，ダンカン; ジェン，ジュエヤン; ジョンソン，バート; タイェバティ，パーヴィズ; マーゲレフテー，ダニエル; マツイ，ヤスヒロ
【課題】変調信号のスペクトル特性を修正することにより、光送信距離を分散限界よりも遥かに延長し、変調レーザ源、およびファイバ分散に対する耐性を高め、部分的周波数変調信号を実質的振幅変調信号に変換する光スペクトル整形システムを提供する。【解決手段】本発明の一形態において、光ファイバ通信システムを提供する。このシステムは、基準二進信号を受信し、第１信号を生成するように構成されている光信号源であって、前記第１信号が周波数変調されている、光信号源と、前記第１信号を第２信号に整形するように構成されている光スペクトル整形器であって、前記第２信号が振幅変調されかつ周波数変調されている、光スペクトル整形器とを備えており、伝送ファイバにおける分散に対して前記第２信号の耐性を高めるように、前記第２信号の周波数特性を構成するような前記第１信号の周波数特性、および前記光スペクトル整形器の光特性を特徴とする。本発明の別の形態では、光送信機を提供する。この光送信機は、第１周波数変調信号を発生する周波数変調源と、第１周波数変調信号を受信し、第２の振幅および周波数変調信号を発生する振幅変調器とを備えている。【選択図】図４
11	ALL-OPTICAL SILICON-PHOTONIC CONSTELLATION CONVERSION OF AMPLITUDE-PHASE MODULATION FORMATS	EP15845902.4	2015-10-01	EP3202056A1	2017-08-09	SADOT, Dan; ZALEVSKY, Zeev; YEMINY, Tomer
A method for performing optical constellation conversion, according to which each received symbol from a constellation of input symbols is optically split into M components and each component is multiplied by a first predetermined different complex weighing factor, to achieve M firstly weighted components with different amplitudes. Then a nonlinear processor optically performs a nonlinear transform on each M firstly weighted components, so as to obtain M outputs which are linearly independent, Finally, a linear processor optically performs a linear transform to obtain a new converted constellation by optically multiplying, in the complex plane, each of the M outputs by a second predetermined different complex weighing factor, to achieve M secondly weighted components and then summing the M secondly weighted components.
12	ALL-OPTICAL SILICON-PHOTONIC CONSTELLATION CONVERSION OF AMPLITUDE-PHASE MODULATION FORMATS	EP15845902	2015-10-01	EP3202056A4	2018-07-04	SADOT DAN; ZALEVSKY ZEEV; YEMINY TOMER
A method for performing optical constellation conversion, according to which each received symbol from a constellation of input symbols is optically split into M components and each component is multiplied by a first predetermined different complex weighing factor, to achieve M firstly weighted components with different amplitudes. Then a nonlinear processor optically performs a nonlinear transform on each M firstly weighted components, so as to obtain M outputs which are linearly independent, Finally, a linear processor optically performs a linear transform to obtain a new converted constellation by optically multiplying, in the complex plane, each of the M outputs by a second predetermined different complex weighing factor, to achieve M secondly weighted components and then summing the M secondly weighted components.
13	OPTICAL SYSTEM COMPRISING AN FM SOURCE AND A SPECTRAL RESHAPING ELEMENT	EP05724041	2005-02-28	EP1738504A4	2017-04-19	MAHGEREFTEH DANIEL; MATSUI YASUHIRO; ZHENG XUEYAN; JOHNSON BART; WALKER DUNCAN; TAYEBATI PARVIZ
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.
14	Optical Communication Signal Conversion	EP14151802.7	2014-01-20	EP2897311A1	2015-07-22	Contestabile, Giampiero; Giorgi, Luca; Bottari, Giulio
An optical communication signal converter (10) comprising: an input (12) arranged to receive an input optical communication signal (14), having a first wavelength and a first optical power, carrying communications traffic encoded as an intensity modulation; a non-linear optical medium (18) having a gain spectrum comprising the first wavelength and having a saturation power, and arranged to receive the input signal (14), the first optical power being higher than the saturation power, and arranged to receive a carrier optical signal (20) having a second wavelength, longer than the first wavelength and outside the gain spectrum, , wherein when the carrier optical signal and the input optical communication signal co-propagate in the non-linear optical medium cross-phase modulation of the carrier signal (20) by the input signal causes the input signal intensity modulation to be converted into a phase modulation of the carrier signal, forming an output phase modulated optical communication signal (22) carrying said communications traffic; and an optical output (24).
15	OPTICAL SYSTEM COMPRISING AN FM SOURCE AND A SPECTRAL RESHAPING ELEMENT	EP05724041.8	2005-02-28	EP1738504A2	2007-01-03	MAHGEREFTEH, Daniel; MATSUI, Yasuhiro; ZHENG, Xueyan; JOHNSON, Bart; WALKER, Duncan; TAYEBATI, Parviz
A fiber optic communication system comprising: an optical signal source adapted to receive a base binary signal and produce a first frequency modulated signal, and an optical spectrum reshaper or an amplitude modulator adapted to reshape the first signal into a second amplitude 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 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.
16	Ｔｗｏｍｏｄｅｆｉｂｅｒ를 이용한 ＮＲＺ 신호 클럭 추출 방법	KR1020110099081	2011-09-29	KR1020130034916A	2013-04-08	맹세영; 이성로; 정민아; 문민우; 박선; 고승호; 박창수; 박인수
PURPOSE: An NRZ(Non Return to Zero) signal clock extraction method capable of using a two mode fiber is provided to perform the 3R(Retiming, Reshaping, Re-amplification) with the extracted clock signal by having a similar function with the previous clock signal. CONSTITUTION: An optical signal is modulated into an NRZ-DPSK(Differential Phase Shift Keying) signal through a modulator. The NRZ-DPSK signal is transformed to a RZ(Return to Zero)-OOK(On-Off Keying) signal through a converter by being constructive interference between the previous signal and the time-delayed signal. The RZ-OOK signal is extracted as an optical clock signal by being applied to a mode locked optical fiber ring laser through a circulator. The optical clock signal is a 10-GHz clock signal extracted from a 10-Gbit/s NRZ-DPSK signal, and the timing jitter is less than 1.6ps.
17	FM SOURCE AND SPECTRAL RESHAPING ELEMENT	PCT/US2005006412	2005-02-28	WO2005084268A3	2007-02-01	MAHGEREFTEH DANIEL; MATSUI YASUHIRO; ZHENG XUEYAN; JOHNSON BART; WALKER DUNCAN; TAYEBATI PARVIZ
A fiber optic communication system comprising: an optical signal source adapted to receive a base binary signal and produce a first frequency modulated signal, and an optical spectrum reshaper or an amplitude modulator adapted to reshape the first signal into a second amplitude 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 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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