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1. 发明申请

WO2021207263A1 CONSTANT AMPLITUDE CODED DFOS USING OUT-OF-BAND SIGNALING 审中-公开
公开(公告)号：WO2021207263A1
公开(公告)日：2021-10-14
申请号：PCT/US2021/026039
申请日：2021-04-06
申请人： NEC LABORATORIES AMERICA, INC.
发明人： HUANG, Yue-Kai , IP, Ezra , YAMAN, Fatih
IPC分类号： H04B10/25 , H04B10/075 , H04B10/2537
摘要： Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously overcome problems encountered when operating DFOS systems over operational telecommunications facilities namely, cross-phase modulation, and uneven amplitude profiles through the use of a novel constant amplitude coded DFOS employing out-of-band signaling.

2. 发明申请

WO2020247473A1 SYSTEMS AND METHODS FOR STIMULATED BRILLOUIN MICROSCOPY 审中-公开
公开(公告)号：WO2020247473A1
公开(公告)日：2020-12-10
申请号：PCT/US2020/035888
申请日：2020-06-03
申请人： THE GENERAL HOSPITAL CORPORATION
发明人： YUN, Seok-Hyun , ELTONY, Amira , CHIA, Desmond, Chow Ming
IPC分类号： H01S3/30 , H01S3/10 , H01S3/108 , H04B10/2537
摘要： Systems and methods are provided for analyzing a biomechanical property of a medium using stimulated Brillouin scattering microscopy. The method can include a first step of applying a probe beam and pulsed pump beam to a target section of the medium, wherein the pump beam interacts with the probe beam to generate at least one acoustic wave in the medium and at least one Brillouin signal is produced as a result of the generated acoustic wave. The method can also include a second step of receiving the produced Brillouin signal and a third step of determining, using a processor and the Brillouin signal, information associated with at least one biomechanical property of the target section.

3. 发明申请

WO2019230480A1 光伝送制御方法及び光伝送システム审中-公开
公开(公告)号：WO2019230480A1
公开(公告)日：2019-12-05
申请号：PCT/JP2019/019926
申请日：2019-05-20
申请人：日本電信電話株式会社
发明人：濱岡　福太郎 , 蓑口　恭 , 岡本　聖司 , 木坂　由明
IPC分类号： H04J14/02 , H04B10/2537
摘要：光伝送システムは、光送信機と、光受信機と、制御装置とを備える。制御装置は、光多重信号に多重されている周波数帯のうち誘導ラマン散乱が生じる周波数帯を少なくとも含む２以上の周波数帯において調整対象の一つの周波数帯を切り替えながら、調整対象の周波数帯の光信号のパワーを調整する調整処理を繰り返し行う。調整処理において、制御装置は、光送信機から送信される調整対象の周波数帯の光信号のパワーを変動させたときに、当該光信号を受信した光受信機において測定された信号品質に基づいて、当該周波数帯の光信号のパワーを決定する。

4. 发明申请

WO01047153A2 OPTICAL FIBRE TRANSMISSION WITH NOISE REDUCTION BY NON-LINEAR HOP OF SIGNALS 审中-公开
标题翻译：通过非线性信号跳跃降噪的光纤传输系统
公开(公告)号：WO01047153A2
公开(公告)日：2001-06-28
申请号：PCT/FR2000/003575
申请日：2000-12-18
IPC分类号： G02F1/365 , H04B10/2537 , H04B10/12
CPC分类号： H04B10/2537
摘要： The invention concerns a long distance transmission system wherein the signal to noise ratio is increased by noise filtering (1) outside the wavelength range of the transmitted signal, wavelength shifting (2) of the transmitted signal, and filtering of the transmitted wavelength shifted signals (5). The wavelength shifting of signals can be performed by widening the spectrum of the signals, or by optical phase conjugation.
摘要翻译：本发明提出，在长距离传输系统中，通过对传输信号的波长范围之外的噪声（1）进行滤波来增加信噪比，偏移（2）的长度为对发射的信号进行波形发射，并对经过了波长发射的发射信号（5）进行滤波。信号的波长偏移可以通过扩大信号的频谱或光相位共轭来实现。

5. 发明申请

WO2017165067A1 IMPROVED STIMULATED BRILLOUIN SCATTERING (SBS) SUPPRESSION IN AN OPTICAL COMMUNICATIONS SYSTEM 审中-公开
标题翻译：光通信系统中改进的刺激布里渊散射（SBS）抑制
公开(公告)号：WO2017165067A1
公开(公告)日：2017-09-28
申请号：PCT/US2017/019262
申请日：2017-02-24
申请人： ARRIS ENTERPRISES LLC
发明人： WANG, Jun , MUTALIK, Venkatesh G. , SCHEMMANN, Marcel F. , CHASMAWALA, Shamsuddin H.
IPC分类号： H04B10/2537 , H04B10/2575
摘要： Techniques for transmitting an optical signal through optical fiber with an improved stimulated Brillouin scattering (SBS) suppression and an improved transmitters signal to noise ratio (SNR) include externally modulating a light beam emitted from a light source with a high frequency signal. The light beam is also modulated externally with an RF information-carrying signal. The high frequency signal is at least twice a highest frequency of the RF signal. The high frequency signal modulating the light source can be split, providing a portion of the split signal to a phase and gain control circuit for adjusting a phase/gain. The output of phase and gain control circuit can be applied to the external modulator to eliminate intensity modulation for SBS suppression improvement. The optical transmitters SNR is further improved by cancelling a beat between SBS suppression modulation tone and out of band distortion spectrum of information bearing RF signal.
摘要翻译：用改进的受激布里渊散射（SBS）抑制和改进的发射机信噪比（SNR）通过光纤发射光信号的技术包括：用光源外部调制从光源发射的光束，高频信号。光束也通过携带RF信息的信号进行外部调制。高频信号至少是RF信号的最高频率的两倍。调制光源的高频信号可以被分离，将分离信号的一部分提供给用于调整相位/增益的相位和增益控制电路。相位和增益控制电路的输出可以应用于外部调制器，以消除强度调制以改善SBS抑制。通过消除SBS抑制调制音调和带信息的RF信号的带外失真频谱之间的差拍，进一步改善了光发射机SNR。

6. 发明申请

WO0147153A3 OPTICAL FIBRE TRANSMISSION WITH NOISE REDUCTION BY NON-LINEAR HOP OF SIGNALS 审中-公开
标题翻译：通过非线性信号降低噪声的光纤传输
公开(公告)号：WO0147153A3
公开(公告)日：2001-12-27
申请号：PCT/FR0003575
申请日：2000-12-18
申请人： CIT ALCATEL , MARCEROU JEAN FRANCOIS , MARCEROU MIREILLE
发明人： MARCEROU JEAN-FRANCOIS , MARCEROU MIREILLE
IPC分类号： G02F1/365 , H04B10/2537 , H04B10/18
CPC分类号： H04B10/2537
摘要： The invention concerns a long distance transmission system wherein the signal to noise ratio is increased by noise filtering (1) outside the wavelength range of the transmitted signal, wavelength shifting (2) of the transmitted signal, and filtering of the transmitted wavelength shifted signals (5). The wavelength shifting of signals can be performed by widening the spectrum of the signals, or by optical phase conjugation.
摘要翻译：本发明涉及一种长距离传输系统，其中通过在发射信号的波长范围，发射信号的波长移位（2）和发射的波长移位信号的滤波之外的噪声滤波（1）增加信噪比; 5）。信号的波长漂移可以通过加宽信号的频谱，或通过光学相位共轭来进行。

7. 发明申请

WO01065740A1 OPTICAL AMPLIFYING DEVICE, COMPOUND OPTICAL AMPLIFYING DEVICE AND OPTICAL COMMUNICATION SYSTEM 审中-公开
标题翻译：光学放大器件，复合光学放大器件和光通信系统
公开(公告)号：WO01065740A1
公开(公告)日：2001-09-07
申请号：PCT/JP2000/007513
申请日：2000-10-26
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/30 , H04B10/07 , H04B10/2537 , H04B10/2543 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02 , H04B10/18 , H04B10/17
CPC分类号： H04B10/2941 , H01S3/30 , H04B10/2537 , H04B10/2942 , H04B2210/258 , H04J14/0221
摘要： An optical amplifying device and a compound optical amplifying device for compensating lost wavelength characteristics in an optical transmission line by gain wavelength characteristics, and an optical communication system having these devices in an optical transmitting device, optical relaying device and optical receiving device. Those devices and the optical communication system can provide a wider wavelength band and a longer transmission distance.
摘要翻译：一种用于通过增益波长特性补偿光传输线路中的失去波长特性的光放大装置和复合光放大装置，以及在光发射装置，光中继装置和光接收装置中具有这些装置的光通信系统。这些设备和光通信系统可以提供更宽的波长带和更长的传输距离。

8. 发明申请

WO01050662A1 DWDM CATV RETURN SYSTEM WITH UP-CONVERTERS TO PREVENT FIBER CROSSTALK 审中-公开
标题翻译：带有上变频器的DWDM CATV返回系统，以防止光纤CROSSTALK
公开(公告)号：WO01050662A1
公开(公告)日：2001-07-12
申请号：PCT/EP2000/012725
申请日：2000-12-14
IPC分类号： H04N7/22 , H01S3/10 , H04B10/2537 , H04J14/00 , H04J14/02 , H04N7/173
CPC分类号： H04J14/0226 , H04B10/2537 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0298 , H04N7/17309
摘要： A hybrid fiber cable network includes multiple nodes, each of which receive a first multi-carrier return signal from multiple customers with the carrier signals in a first frequency band. In a fiber-hub, one or more first multi-carrier signals are converted into a second multi-carrier signal with carrier signals in a second band. Each information signal that modulates a carrier signal in one of the first signal modulates a different higher frequency carrier signal in the second signal. A multitude of second multi-carrier signals are converted into respective optical signals with different respective optical wavelengths, multiplexed together in a common optical fiber, and transmitted back to the head-end. The first frequency band is the same for all the nodes, below 200 MHz, and preferably, from 5 to 50 MHz. The second frequency band is different for different nodes, above 200 MHz, and preferably, in a portion of the range between 300 and 1200 MHz to reduce crosstalk due to stimulated Ramon scattering (SRS). Preferably, each second frequency band is no more than one octave wide, and more preferably, no more than one half an octave wide.
摘要翻译：混合光纤网络包括多个节点，每个节点从第一频带中的载波信号接收来自多个客户的第一多载波返回信号。在光纤集线器中，一个或多个第一多载波信号被转换成具有第二频带中的载波信号的第二多载波信号。在第一信号之一中调制载波信号的每个信息信号在第二信号中调制不同的较高频率载波信号。多个第二多载波信号被转换成具有不同相应光波长的相应光信号，在公共光纤中一起多路复用并传送回头端。所有节点的第一个频带相同，低于200 MHz，最好为5至50 MHz。第二频带对于高于200MHz的不同节点，并且优选地在300和1200MHz之间的范围的一部分中是不同的，以减少由于受激拉曼散射（SRS）引起的串扰。优选地，每个第二频带不超过一个八度宽，更优选地不超过一个八度宽的一半。

9. 发明申请

WO01022626A1 AMPLIFICATION FOR OPTICAL FIBRE ULTRAWIDE BAND TRANSMISSION SYSTEMS 审中-公开
标题翻译：光纤超声波传输系统放大
公开(公告)号：WO01022626A1
公开(公告)日：2001-03-29
申请号：PCT/FR2000/002637
申请日：2000-09-22
IPC分类号： H04B10/2537 , H04B10/18
CPC分类号： H04B10/2537
摘要： The invention concerns an ultrawide band wavelength multiplexing transmission, typically more than 150 or 200 nm, wherein the energy transfers between channels caused by Raman effect are compensated. The depletion of channels for high frequency wavelengths is compensated by an amplification, preferably distributed, while the enhancement of channels for low frequency wavelengths is compensated by an attenuation.
摘要翻译：本发明涉及通常超过150或200nm的超宽带波长复用传输，其中由拉曼效应引起的信道之间的能量传输被补偿。用于高频波长的通道的耗尽通过优选分布的放大来补偿，而用于低频波长的通道的增强被衰减补偿。

10. 发明申请

WO2022101674A1 MULTI-BAND OPTICAL NETWORK INTERFACE 审中-公开
公开(公告)号：WO2022101674A1
公开(公告)日：2022-05-19
申请号：PCT/IB2021/000775
申请日：2021-11-05
申请人： ECI TELECOM LTD.
发明人： LICHTMAN, Eyal , LEIMAN, Rafi , WITTENBERG, Boaz
IPC分类号： H04B10/2537 , H04B10/296 , H04J14/02
摘要： The disclosed systems and methods support addition of bands to a multi -band optical interface. The systems and methods can include a multi -band interface device for optical networks. The device can include a multi -band optical amplifier, a C-Band Add/Drop multiplexer, an L-Band Add/Drop multiplexer and an amplifier noise source. The multi-band optical amplifier can be connected to the C-Band Add/Drop multiplexer and connected to the L-Band Add/Drop multiplexer through the amplifier noise source. The amplifier noise source be configured to generate a combination of bulk noise and an input transmission received from the L-Band Add/Drop multiplexer. The gain of the amplifier noise source can depend on the power of the received input transmission. The power of the received input transmission can be increased over a period of time, transitioning the amplifier noise source from acting as a bulk noise source to acting an amplifier.

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