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1. 发明申请

WO2010091740A1 OPTICAL DIGITAL-TO-ANALOG CONVERSION 审中-公开
标题翻译：光学数字到模拟转换
公开(公告)号：WO2010091740A1
公开(公告)日：2010-08-19
申请号：PCT/EP2009/051815
申请日：2009-02-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PORZI, Claudio , POTI, Luca , BOGONI, Antonella
发明人： PORZI, Claudio , POTI, Luca , BOGONI, Antonella
IPC分类号： G02F7/00 , G02F1/35
CPC分类号： G02F7/00 , G02F1/3515 , G02F2203/70
摘要： The present invention relates to Digital-to-Analog conversion in the optical or photonic domain. The present invention pr ovides a digital-to-analog converter (DAC) (100) arranged to receive an N-bit digital optical signal (105) and to process the N-bit digital optical signal to generate an analog optical signal (110). The DAC comprises a photonic circuit (120a, 120b) arranged to adjust the amplitude of each bit of the N-bit digital optical signal dependent on the amplitudes of at least one of the other bits of the N-bit digital optical signal. The amplitudes are adjusted using a non-linear optical effect in order to generate respective outputs for each bit. The DAC also comprises a photonic combiner (145) arranged to combine the outputs for each bit to generate the analog output signal (110).
摘要翻译：本发明涉及光或光子域中的数模转换。本发明提供一种被配置为接收N位数字光信号（105）并且处理N位数字光信号以产生模拟光信号（110）的数模转换器（DAC）（100）。 DAC包括光电路（120a，120b），其被配置为根据N位数字光信号中的至少一个其它位的振幅调整N位数字光信号的每个位的振幅。使用非线性光学效应来调整幅度，以便为每个位产生相应的输出。 DAC还包括光子组合器（145），其布置成组合每个位的输出以产生模拟输出信号（110）。

2. 发明申请

WO2021213637A1 SELF-COHERENT OPTICAL TRANSMISSION SYSTEM AND RECEIVER 审中-公开
公开(公告)号：WO2021213637A1
公开(公告)日：2021-10-28
申请号：PCT/EP2020/061100
申请日：2020-04-21
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , GIORGI, Luca , POTI, Luca
IPC分类号： H04B10/61
摘要： An optical receiver (100) comprising: a polarisation controller (102) arranged to receive as its input a first modulated optical signal having a first polarisation and an unmodulated optical carrier signal polarisation aligned with the first modulated optical signal, the first modulated optical signal having negligible spectral power density within a predetermined bandwidth, BW, around an optical spectrum of the unmodulated optical carrier signal; optical filter apparatus (104) having a main polarisation mode; and coherent optical receiver apparatus (106), wherein the polarisation controller is arranged to apply polarisation rotations to the first modulated optical signal and the unmodulated optical carrier signal such that their polarisation is aligned to the main polarisation mode of the optical filter apparatus, the optical filter apparatus is arranged to receive and separate the unmodulated optical carrier signal from the first modulated optical signal, and the coherent optical receiver apparatus is arranged to receive said separated signals and perform coherent detection of the first modulated optical signal using as a local oscillator, LO, signal the unmodulated optical carrier signal.

3. 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。

4. 发明申请

WO2011032609A1 OPTICAL DEVICES AND METHOD OF COUNTING OPTICAL PULSES 审中-公开
标题翻译：光学装置和计算光学脉冲的方法
公开(公告)号：WO2011032609A1
公开(公告)日：2011-03-24
申请号：PCT/EP2009/063721
申请日：2009-10-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , MELONI, Gianluca , BERRETTINI, Gianluca , POTI, Luca , BOGONI, Antonella , D'ERRICO, Antonio
发明人： MELONI, Gianluca , BERRETTINI, Gianluca , POTI, Luca , BOGONI, Antonella , D'ERRICO, Antonio
IPC分类号： H04Q11/00 , G06E1/02
CPC分类号： G06E1/00 , G02F3/02 , G06E1/02 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0041
摘要： An optical device (10) comprises an optical device stage (12), which comprises an optical input (14), an optical AND gate (16), an optical flip-flop (18) and an optical output (26). The optical input (14) is arranged to receive an optical input pulse at an input wavelength. The optical AND gate (16) comprises a first input (16a) arranged to receive a part of said optical input pulse, a second input (16b) arranged to receive at least a part of a flip-flop optical output signal, and an output (16c). The optical AND gate (16) is arranged to generate an AND gate optical output pulse dependent on said flip-flop optical output signal (24). The optical flip-flop (18) comprises a first input (18a) arranged to receive a further part of said optical input pulse, a second input (18b) arranged to receive a said AND gate optical output pulse, and an output (18c). The optical flip-flop (18) is arranged to generate said flip-flop output signal at a flip-flop output wavelength. A least a part of the flip-flop output signal (24) is provided to said output (26).
摘要翻译：光学装置（10）包括光学装置级（12），其包括光学输入（14），光学与门（16），光学触发器（18）和光学输出（26）。光输入（14）被布置成接收输入波长的光输入脉冲。光与门（16）包括布置成接收所述光输入脉冲的一部分的第一输入端（16a），布置成接收触发器光输出信号的至少一部分的第二输入端（16b）（16C）。光学与门（16）被布置成根据所述触发器光输出信号（24）产生与门光输出脉冲。光触发器（18）包括布置成接收所述光输入脉冲的另一部分的第一输入端（18a），布置成接收所述与门光输出脉冲的第二输入端（18b），以及输出端（18c）。光学触发器（18）被布置成以触发器输出波长产生所述触发器输出信号。触发器输出信号（24）的至少一部分被提供给所述输出（26）。

5. 发明申请

WO2009015692A1 OPTICAL LOGIC DEVICE USING SATURABLE ABSORBER 审中-公开
标题翻译：使用可饱和吸收器的光学逻辑器件
公开(公告)号：WO2009015692A1
公开(公告)日：2009-02-05
申请号：PCT/EP2007/057922
申请日：2007-07-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BOGONI, Antonella , POTI, Luca , PORZI, Claudio
IPC分类号： G02F3/02 , G02F1/35
CPC分类号： G02F3/024 , G02F1/3515 , G02F2202/108 , G02F2203/02 , G02F2203/06
摘要： An optical logic device (1) comprising a first mirror (M1) confronting a second mirror (M2), a saturable absorber located between the mirrors and radiation which is output from the device is output via the first mirror (M1), and the reflectivity of the first mirror (M1) being such that, in use, for incident radiation which has an intensity which is above a particular value the intensity of exiting radiation is below a threshold and for incident radiation which has an intensity which is below the particular value the intensity of exiting radiation is above the threshold. The optical logic device is adapted to be used as a NAND gate and a NOR gate.
摘要翻译：一个光学逻辑器件（1）包括面对第二反射镜（M2）的第一反射镜（M1），位于反射镜之间的可饱和吸收体和从装置输出的辐射通过第一反射镜（M1）输出，反射率第一反射镜（M1）使得在使用中对于具有高于特定值的强度的入射辐射，出射辐射的强度低于阈值，并且对于具有低于特定值的强度的入射辐射出射辐射的强度高于阈值。光学逻辑器件适于用作NAND门和NOR门。

6. 发明申请

WO2008131802A1 ALL OPTICAL PROCESSING CIRCUIT FOR CONFLICT RESOLUTION AND SWITCH CONFIGURATION IN A 2X2 OPTICAL NODE 审中-公开
标题翻译：所有用于2X2光学节点中的冲突分辨率和开关配置的光学处理电路
公开(公告)号：WO2008131802A1
公开(公告)日：2008-11-06
申请号：PCT/EP2007/054234
申请日：2007-05-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , BOGONI, Antonella , POTI, Luca , SCAFFARDI, Micro
发明人： BOGONI, Antonella , POTI, Luca , SCAFFARDI, Micro
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , G02F3/00 , H04Q11/0066 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/005 , H04Q2011/0052 , H04Q2011/0058
摘要： An optical processing circuit, such as a combinatorial network, comprises an arrangement of optical logic gates suitable for use in combination with a switched optical node of the kind having at least first and second input ports and two output ports, the node being configurable into either a cross or a bar configuration, and in which the optical processing circuit is arranged so as to receive at least three optical input signals which respectively comprise a packet identifier signal PIH which identifies whether or not a first input signal is present at the first input port of the switched optical node, the first input port being assigned a higher priority than the second input port, a first destination address AH indicating the output port of the switched optical node to which a first information carrying signal, received at the first input port, is intended to be passed, and a second destination address AL indicating the output port of the switched optical node to which a second information carrying signal, received at the second input port, is intended to be passed, and in which the processing circuit is configured to generate from these three optical input signals the following optical output signals: a contention resolution control (CRC) signal which has a first value if a routing conflict is present and a second if it is not; and a switch control generation (SCG) signal indicating whether the associated switched optical node is to be set in a cross or bar configuration.
摘要翻译：诸如组合网络的光学处理电路包括适于与具有至少第一和第二输入端口和两个输出端口的类型的交换光学节点组合使用的光学逻辑门的布置，该节点可配置为交叉或条形配置，并且其中所述光学处理电路被布置为接收至少三个光学输入信号，所述至少三个光学输入信号分别包括分组标识符信号PIH，所述分组标识符信号表示第一输入信号是否存在于所述第一输入端口所述第一输入端口被分配比所述第二输入端口更高的优先级;第一目的地地址AH，其指示在所述第一输入端口处接收到的第一信息携带信号的所述交换光节点的输出端口，以及第二目的地地址AL，其指示切换的光节点的输出端口，其中具有第二信息旨在通过在第二输入端口接收的定位承载信号，并且其中处理电路被配置为从这三个光学输入信号产生以下光学输出信号：竞争解决控制（CRC）信号，其具有如果存在路由冲突，则为第一个值，如果不存在路由冲突则为第二个值; 以及指示是否将相关联的交换光节点设置为交叉或条形配置的开关控制产生（SCG）信号。

7. 发明申请

WO2020057752A1 OPTICAL DISPERSION COMPENSATOR 审中-公开
公开(公告)号：WO2020057752A1
公开(公告)日：2020-03-26
申请号：PCT/EP2018/075661
申请日：2018-09-21
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , GIORGI, Luca , POTI, Luca , DE ANGELIS, Gabriele
IPC分类号： H04B10/2513 , G02B6/293
摘要： An Optical Dispersion Compensator (ODC) is disclosed, the ODC being suitable for managing chromatic dispersion of an optical signal for transmission over an optical fiber. The ODC comprises a first ODC unit (202) arranged on a first optical bus (206), a second ODC unit (204) arranged on a second optical bus (208), parallel to the first optical bus (206), and a switching element (210) interconnecting the first and second optical buses (206, 208) between the first and second ODC units (202, 204). The first and second ODC units (202, 204) are operable to provide a delay to the optical signal that varies with frequency. The switching element (210) is configured, in a first state, to switch an optical signal received on one of the first or second optical buses (206, 208) to the other of the first or second optical buses (208, 206) and, in a second state, to maintain an optical signal received on one of the first or second optical buses (206, 208) on the optical bus on which it was received (206, 208). Reflective elements (710) may be included in the ODC, providing bidirectional propagation through one of more ODC units.

8. 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.

9. 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。

10. 发明申请

WO2009040142A1 ETHERNET TRANSMITTER APPARATUS 审中-公开
标题翻译：以太网发射机设备
公开(公告)号：WO2009040142A1
公开(公告)日：2009-04-02
申请号：PCT/EP2008/053149
申请日：2008-03-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SCAFFARDI, Mirco , BERRETTINI, Gianluca , DI MURO, Rodolfo , NAYAR, Bimal , BOGONI, Antonella , POTI, Luca
发明人： SCAFFARDI, Mirco , BERRETTINI, Gianluca , DI MURO, Rodolfo , NAYAR, Bimal , BOGONI, Antonella , POTI, Luca
IPC分类号： H04J14/06 , H04J14/08
CPC分类号： H04J14/06 , H04J14/08
摘要： An optical transmitter apparatus capable of a transmission rate of at least 100gbit/second comprises at least three input transmitters that each provide at an output an NRZ optical signal, at least two of the NRZ optical signals having substantially the same bit rate, each of the signals having a bit rate which is less than 100 Gbit/s and the sum of the bit rates of all of the at least three transmitters being at least equal to 100 Gbit/s, an NRZ to RZ converter associated with each transmitter which converts each NRZ signal into an optical RZ signal with the signal remaining in the optical domain during conversion, the optical RZ signal having the same bit rate as the corresponding NRZ signal, an optical time division multiplexer which converts the RZ signals into at least two further signals, one of the further signals being formed by bitwise interleaving the bits of the at least two of the RZ signals which have the same bit rate, and a polarisation multiplexer which processes the two further signals to provide two output signals of differing polarisation, each of the two output signals having the same bit rate as a respective one of the two further signals. The NRZ to RZ converters may be implemented using a SOA based device.
摘要翻译：能够传输速率至少为100gbit /秒的光发射机装置包括至少三个输入发射机，每个至少三个输入发射机在输出端提供NRZ光信号，至少两个NRZ光信号具有基本上相同的比特率，具有小于100Gbit / s的比特率和所有至少三个发射机的比特率的总和至少等于100Gbit / s的信号，与每个发射机相关的NRZ至RZ转换器，每个发射机将每个 NRZ信号转换为在转换期间信号保持在光域中的光学RZ信号，光学RZ信号具有与相应的NRZ信号相同的比特率，光学时分复用器将RZ信号转换为至少两个另外的信号，通过对具有相同比特率的RZ信号中的至少两个的比特进行逐位交织来形成另外的信号之一，以及处理tw的偏振多路复用器 o进一步的信号以提供不同极化的两个输出信号，两个输出信号中的每一个具有与两个另外的信号中的相应一个相同的比特率。 NRZ到RZ转换器可以使用基于SOA的设备来实现。

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