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1. 发明申请

WO2009129866A1 OPTICAL FLIP-FLOP 审中-公开
公开(公告)号：WO2009129866A1
公开(公告)日：2009-10-29
申请号：PCT/EP2008/055115
申请日：2008-04-25
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BERRETTINI, Gianluca , MALACARNE, Antonio , POTI, Luca , BOGONI, Antonella
发明人： BERRETTINI, Gianluca , MALACARNE, Antonio , POTI, Luca , BOGONI, Antonella
IPC分类号： G02F3/02 , H01S3/23
CPC分类号： G02F3/026 , G02F2203/70
摘要： An optical flip-flop comprises first (102) and second (104) flip-flop elements arranged to respectively provide first (output 1) and second (output 3) optical outputs. Each output is in one of a plurality of states, wherein switching the output from a relatively high power state to a relatively low power state has an associated falling edge transition time, and switching the output from a relatively low power state to a relatively high power state has an associated rising edge transition time. The rising edge transition time is greater than the falling edge transition time. The optical flip-flop also comprises a processor (106) arranged to process the first and second outputs to provide an optical flip-flop output, being one of a plurality of state outputs, wherein switching the flip-flop output froma relatively high power state to a relatively low power state has an associated falling edge transition time, and switching the flip-flop output froma relatively low power state to a relatively high power state has an associated rising edge transition time. The processor is arranged to process the first and second outputs such that both the falling edge transition time and the rising edge transition time of the flip-flop output are independent of the rising edge transitiontimes of boththe first and second flip-flop elements. The invention also provides a method of operating the flip-flop, an optical switching arrangement and an optical switching method.
摘要翻译：光学触发器包括布置成分别提供第一（输出1）和第二（输出3）光输出的第一（102）和第二（104）触发器元件。每个输出处于多个状态之一，其中将输出从相对高功率状态切换到相对低功率状态具有相关联的下降沿转换时间，并且将输出从相对低功率状态切换到相对较高的功率状态具有相关联的上升沿转换时间。上升沿转换时间大于下降沿转换时间。光学触发器还包括处理器（106），其被配置为处理第一和第二输出以提供作为多个状态输出之一的光学触发器输出，其中将触发器输出从较高功率状态切换相对低功率状态具有相关联的下降沿转换时间，并且将触发器输出从相对低功率状态切换到相对高功率状态具有相关联的上升沿转换时间。处理器被布置为处理第一和第二输出，使得触发器输出的下降沿转换时间和上升沿转换时间都与第一和第二触发器元件的上升沿转换时间无关。本发明还提供了一种操作触发器，光开关装置和光开关方法的方法。

2. 发明申请

WO2007039152A1 RECONFIGURABLE AND INTEGRABLE OPTICAL LOGIC GATE BASED ON A SINGLE SOA 审中-公开
标题翻译：基于单SOA的可重构和可整合的光逻辑门
公开(公告)号：WO2007039152A1
公开(公告)日：2007-04-12
申请号：PCT/EP2006/009252
申请日：2006-09-22
申请人： ERICSSON AB , BOGONI, Antonella , POTI, Luca , BERRETTINI, Gianluca , MALACARNE, Antonio
发明人： BOGONI, Antonella , POTI, Luca , BERRETTINI, Gianluca , MALACARNE, Antonio
IPC分类号： G02F3/00
CPC分类号： G02F3/00
摘要： An optical logic gate (10) comprising inputs (12) for optical signals on which to perform a chosen logical operation. An SOA (11) element receives such input signals to be piloted thereby in saturation and its output is connected to at least one optical filter (14, 15, 16) that filters components of signals output from the SOA and which represent a desired logical result of the signals input at the gate so that at the output (13) of the filter there is an optical signal as the result of the desired logical operation. A probe signal (17) can also be provided. An appropriate combination of power of the input, power and probe signal wavelength and central wavelength of the filter allows obtaining a plurality of logic functions such as NOR, NOT, inverted XOR, AND, OR.
摘要翻译：光学逻辑门（10）包括用于执行选择的逻辑运算的光信号的输入（12）。 SOA（11）元件接收这样的输入信号以在饱和中被引导，并且其输出连接到至少一个滤光器（14,15,16），该滤光器对从SOA输出的信号的分量进行滤波，并且代表期望的逻辑结果在门处输入的信号，使得在滤波器的输出端（13）处有作为所需逻辑运算结果的光信号。还可以提供探测信号（17）。滤波器的输入，功率和探头信号波长的功率与中心波长的适当组合允许获得多个逻辑功能，例如NOR，NOT，反相XOR，AND，OR。

3. 发明申请

WO2008034460A1 OPTICAL WAVEGUIDE HAVING BISTABLE TRANSMISSION STATES SUITABLE FOR OPTICAL LOGIC CIRCUITS 审中-公开
标题翻译：具有适用于光逻辑电路的双向传输状态的光波导
公开(公告)号：WO2008034460A1
公开(公告)日：2008-03-27
申请号：PCT/EP2006/009253
申请日：2006-09-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ANDRIOLLI, Nicola , BOGONI, Antonella , POTI, Luca , MALACARNE, Antonio
发明人： ANDRIOLLI, Nicola , BOGONI, Antonella , POTI, Luca , MALACARNE, Antonio
IPC分类号： G02F3/02
CPC分类号： G02F3/02 , G02F2201/02 , G02F2202/06
摘要： An optical circuit comprises a bistable optical waveguide (34) having a first and a second transmission state. The waveguide is more transmissive to light of a given wavelength in the second state than in the first state. A first light source (11) and a second light source (21) emit light of a first and second wavelength respectively and are coupled to the waveguide at one end. Selective transmission of a sufficient amount of light of the first wavelength through the waveguide "sets" the waveguide, causing it to switch from the first into the second state, whereas transmission of a sufficient amount of light of the second wavelength "resets" the waveguide causing it to switch back from the second into the first state. A sensing or reading ("test") light source (36) is arranged at the other end of the waveguide to transmit a sensing light signal through the waveguide (34) in the opposite propagation direction to that of light of the first and second wavelengths. This sensing light source can be an external light source or an "internal" source provided by spontaneous emission in the waveguide. A sensor (38) is arranged to detect the amount of the sensing light signal transmitted through the waveguide (34). In this way the waveguide can be set into a given transmission state, which can be determined at a later time by measuring the amount of the sensing light signal transmitted. The optical circuit therefore exhibits a memory effect and may be used to produce an all-optical bistable logic circuit such as an optical latch or an optical flip-flip. Typically, the waveguide (34) is a doped optical fibre, such as an Erbium-Ytterbium (Er-Yb) doped fibre. Light of the first (set) / second (reset) wavelengths excites or de-excites respectively the dopant ions in the fibre thus tuning its transmission.
摘要翻译：光学电路包括具有第一和第二透射状态的双稳态光波导（34）。波导对于第二状态中的给定波长的光比在第一状态下更透射。第一光源（11）和第二光源（21）分别发射第一和第二波长的光，并且在一端耦合到波导。通过波导的第一波长的足够量的光的选择性透射“设置”波导，使其从第一波长切换到第二状态，而第二波长的足够量的光的透射“复位”波导使其从第二个状态切换回第一个状态。在波导的另一端布置感测或读取（“测试”）光源（36），以将传感光信号通过波导（34）沿与第一和第二波长的光相反的传播方向传输。该感测光源可以是由波导中的自发发射提供的外部光源或“内部”源。传感器（38）被布置成检测通过波导（34）传输的感测光信号的量。以这种方式，波导可以被设置为给定的传输状态，其可以通过测量发射的感测光信号的量在稍后的时间来确定。因此，光电路呈现存储效应，并且可以用于产生诸如光锁存器或光学翻盖的全光双稳态逻辑电路。通常，波导（34）是掺杂光纤，例如铒 - 镱（Er-Yb）掺杂光纤。第一（设置）/第二（复位）波长的光分别激发或去激励光纤中的掺杂剂离子，从而调整其透射率。

4. 发明申请

WO2009068324A1 OPTICAL SAMPLING 审中-公开
标题翻译：光学采样
公开(公告)号：WO2009068324A1
公开(公告)日：2009-06-04
申请号：PCT/EP2008/050706
申请日：2008-01-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , BOGONI, Antonella , POTI, Luca , MALACARNE, Antonio , FRESI, Francesco
发明人： BOGONI, Antonella , POTI, Luca , MALACARNE, Antonio , FRESI, Francesco
IPC分类号： G01J11/00
CPC分类号： G01J11/00
摘要： The present invention relates to an optical sampler, to a systemincluding such a sampler, and to a method of sampling an optical signal comprising a pattern having a frequency. The method comprises providing the optical signal to a nonlinear medium, generating an optical sampling signal comprising a series of optical pulses, providing the optical sampling signal to the nonlinear medium to interact with the optical signal and thereby induce a nonlinear effect; and obtaining a sample result by making a measurement indicative of said induced nonlinear effect. The step of generating the optical sampling signal comprises controlling the frequency of said series ofoptical pulses using a controlsignal dependent upon the difference between a predetermined reference signal frequency and a predetermined function of the frequency of the pattern.
摘要翻译：光采样器技术领域本发明涉及一种光采样器，包括这种采样器的系统，以及对包括具有频率的图案的光信号进行取样的方法。该方法包括将光信号提供给非线性介质，产生包括一系列光脉冲的光采样信号，将光采样信号提供给非线性介质以与光信号相互作用，从而引起非线性效应; 并通过进行表示所述感应非线性效应的测量来获得样本结果。产生光采样信号的步骤包括使用控制信号来控制所述一系列光脉冲的频率，这取决于预定参考信号频率与图案频率的预定函数之间的差。

5. 发明申请

WO2017041829A1 METHOD OF TRANSMITTING COMMUNICATIONS TRAFFIC, TRANSMITTER AND COMMUNICATIONS TRANSMISSION SYSTEM 审中-公开
标题翻译：传输通信交通，发射机和通信传输系统的方法
公开(公告)号：WO2017041829A1
公开(公告)日：2017-03-16
申请号：PCT/EP2015/070494
申请日：2015-09-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , POTI, Luca , MALACARNE, Antonio , FORESTIERI, Enrico , SECONDINI, Marco
IPC分类号： H04B10/516 , H04B10/556 , H04J14/04
CPC分类号： H04B10/516 , H04B10/5563 , H04J14/04
摘要： A method (10) of transmitting communications traffic, the method comprising steps of receiving a sequence of communications traffic bits (12); and mapping the sequence of communications traffic bits onto a respective one of a plurality of transmission symbols for transmission during a symbol time (14). Each transmission symbol is identified by a respective first symbol identifier indicative of a respective one or more of a plurality, M, of wavelengths for a transmission signal and a respective second symbol identifier indicative of a respective one or more of a plurality, N, of optical fibres on which to transmit the transmission signal.
摘要翻译：一种发送通信业务的方法（10），所述方法包括以下步骤：接收通信业务位（12）的序列; 以及将所述通信业务比特的序列映射到多个发送符号中的相应一个，以在符号时间（14）期间进行发送。每个传输符号由相应的第一符号标识符标识，该第一符号标识符指示用于传输信号的多个波长的相应一个或多个，以及相应的第二符号标识符，其指示多个的相应的一个或多个N 传输传输信号的光纤。

6. 发明申请

WO2022214177A1 RADIO FREQUENCY SIGNAL GENERATION 审中-公开
公开(公告)号：WO2022214177A1
公开(公告)日：2022-10-13
申请号：PCT/EP2021/059116
申请日：2021-04-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BIGONGIARI, Alessandra , BOGONI, Antonella , D'ERRICO, Antonio , MALACARNE, Antonio
IPC分类号： H04B10/2575 , G02B6/12 , G02F1/21 , G02F1/225 , H04J14/02
摘要： Embodiments described herein relate to methods and apparatus for generating a radio frequency (RF) signal generator using optical processing. In an embodiment an RF signal generator (100) comprises an optical comb generator module (110) arranged to provide a plurality of spectral components at spaced wavelengths, an optical filter module (130) coupled to the optical comb generator module (110) and an optical-to-electrical converter device (160). The optical filter module (130) comprises a plurality of interferometer devices (140-1 - 140n) coupled in series. Each interferometer device is arranged to remove a respective set of spectral components from the plurality of spectral components in order to output predetermined spectral components from the optical filter module (130) to the optical-to-electrical converter device (160), the predetermined spectral components being a subset of the plurality of spectral components. The optical-to-electrical converter device (160) is arranged to heterodyne the predetermined spectral components to generate a radio frequency signal.

7. 发明申请

WO2018099573A1 OPTICAL TRANSMISSION METHOD AND OPTICAL RECEIVER APPARATUS 审中-公开
公开(公告)号：WO2018099573A1
公开(公告)日：2018-06-07
申请号：PCT/EP2016/079624
申请日：2016-12-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , POTI, Luca , FOGGI, Tommaso , MELONI, Gianluca , MALACARNE, Antonio , FRESI, Francesco
IPC分类号： H04B10/516 , H04B10/54 , H04B10/69
摘要： An optical transmission method (10) comprising steps of receiving (12) a communication signal comprising symbols for transmission. The method comprises performing (16) linear amplitude modulation of an optical carrier with the communication signal to generate an amplitude modulated optical carrier. The method comprises performing low-pass filtering (14) to reduce a bandwidth of the symbols to less than a Nyquist bandwidth of the symbols. The method comprises transmitting (18) the amplitude modulated optical carrier. The method further comprises receiving (20) the amplitude modulated optical carrier following transmission and performing direct detection of the received amplitude modulated optical carrier to generate a received electrical signal; and determining (22) received symbols from the received electrical signal using an indication of a nonlinear impulse response of the direct detection.

8. 发明申请

WO2022243140A1 PHOTONIC RF SIGNAL GENERATION APPARTUS, NETWORK UNITS AND METHOD 审中-公开
公开(公告)号：WO2022243140A1
公开(公告)日：2022-11-24
申请号：PCT/EP2022/062857
申请日：2022-05-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BIGONGIARI, Alessandra , D'ERRICO, Antonio , MALACARNE, Antonio , SECONDINI, Marco , PORZI, Claudio
IPC分类号： H04B10/2575
摘要： Photonic radio frequency, RF, signal generation apparatus (100) comprising: a coherent optical source (102) to output a coherent optical signal (104) at a carrier frequency, f0; an optical splitter (106) to split the coherent optical signal into a first and a second optical carrier signal; RF signal generation apparatus (108) to generate at least one RF signal (V(t)) at an initial frequency, fe; optical modulation apparatus (110) driven by the at least one RF signal to modulate the first and second optical carrier signals at the initial frequency to generate optical harmonic signals (114) around each optical carrier signal; a first optical filter (116) to select an nth order optical harmonic signal (118) of a first sign, +n, of the optical harmonics around the first optical carrier signal; a second optical filter (126) to select the nth order optical harmonic signal (128) of an opposite sign, -n, of the optical harmonics around the second optical carrier signal; and an optical combiner (130) to combine the selected +n optical harmonic signal with the selected -n optical harmonic signal to generate an optical beat (132) signal forming an output photonic RF signal.

9. 发明申请

WO2022242845A1 PHOTONIC RF SIGNAL GENERATION APPARATUS, NETWORK UNITS AND METHOD 审中-公开
公开(公告)号：WO2022242845A1
公开(公告)日：2022-11-24
申请号：PCT/EP2021/063285
申请日：2021-05-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BIGONGIARI, Alessandra , D'ERRICO, Antonio , MALACARNE, Antonio , SECONDINI, Marco
IPC分类号： H04B10/2575
摘要： Photonic radio frequency, RF, signal generation apparatus (100) comprising: a coherent optical source (102) to output a coherent optical signal (104) at a carrier frequency, f0, an optical splitter (106) to split the coherent optical signal into a first and a second optical carrier signal; an RF signal generator (108) to generate an RF signal (V(t)) at an initial frequency, fe; optical modulation apparatus (110) driven by the RF signal to modulate the first and second optical carrier signals at the initial frequency to generate optical harmonic signals (114) around each optical carrier signal; a first optical filter (116) to select an nth order optical harmonic signal (118) of a first sign, +n, of the optical harmonics around the first optical carrier signal; a second optical filter (126) to select the nth order optical harmonic signal (128) of an opposite sign, -n, of the optical harmonics around the second optical carrier signal; and an optical combiner (130) to combine the selected +n optical harmonic signal with the selected -n optical harmonic signal to generate an optical beat (132) signal forming an output photonic RF signal.

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