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    • 3. 发明公开
    • POLARIZATION CONTROL DEVICE AND POLARIZATION CONTROL METHOD
    • 极地特派团波斯尼亚共和国
    • EP3035113A1
    • 2016-06-22
    • EP14892818.7
    • 2014-05-23
    • Huawei Technologies Co. Ltd.
    • MA, XiaoHAO, QinfenDENG, Xiangyuan
    • G02F1/01G02F1/025G02B6/13
    • G02B6/126G02B6/13G02B6/2726G02B6/2766G02B6/2773G02B6/278G02B6/29344G02B6/34G02F1/01G02F1/011G02F1/0121G02F1/0136G02F1/025G02F1/225G02F2001/217
    • The present invention discloses a polarization control device and a polarization control method. The polarization control device includes: a polarization beam splitting apparatus (110), a first phase shifter (120), a beam combiner (130), a waveguide (140), a waveguide (150), and a waveguide (160), where the polarization beam splitting apparatus (110) is configured to split input light into two beams of TE mode light or two beams of TM mode light; the first phase shifter (120) is configured to adjust a phase of light that is input to the first phase shifter (120); and the beam combiner (130) is configured to adjust a split ratio of the beam combiner (130), and combine the two beams of TE mode light or the two beams of TM mode light that is input from a first input port and a second input port of the beam combiner (130), into one beam of TE mode light or one beam of TM mode light. The use of the polarization control device and the polarization control method according to embodiments of the present invention can increase efficiency of polarization control.
    • 本发明公开了一种偏振控制装置和偏振控制方法。 偏振控制装置包括:偏振光束分离装置(110),第一移相器(120),光束组合器(130),波导管(140),波导管(150)和波导管(160) 偏振光束分离装置(110)被配置为将输入光分成TE模光或TM模光的两束光束; 第一移相器(120)被配置为调节输入到第一移相器(120)的光的相位; 并且所述光束组合器(130)被配置为调整所述光束组合器(130)的分光比,并且将从所述第一输入端口和第二输入端口输入的所述TE模式光或TM模式光的两束组合 光束组合器(130)的输入端口成为TE模式光束或TM模式光束的一束。 使用根据本发明的实施例的偏振控制装置和偏振控制方法可以提高偏振控制的效率。
    • 8. 发明公开
    • Optical receiver
    • OptischerEmpfänger。
    • EP0395060A2
    • 1990-10-31
    • EP90107956.6
    • 1990-04-26
    • Nippon Telegraph and Telephone Corporation
    • Matsumoto, TakaoKoga, Masafumi
    • H04J14/02H04B10/06G02B6/26
    • G02B6/4215G02B6/2804G02B6/2813G02B6/29311G02B6/29344G06N3/0675H04B10/2581H04J14/02
    • An optical receiver including an optical conversion device which converts difference in wavelength into difference in spatial power distribution and pattern recognition element for recognizing patterns of the spatial power distribution and taking out output signals. At the output portion (24) of the optical conversion device spatial power distributions are different for different wavelengths. After converting the spatial power distributions by the pattern recognition element (25A, 25B, 25C, 25D) into electric signals pattern recognition of the signals is performed to regenerate original signals with respective wavelengths. The optical conversion device uses a diffractive grating or a combinations of a optical multimode circuit (22), a optical multimode fiber (20), and a plurality of optical waveguides. The pattern recognition element is constructed by a combination of photo-detector array (25A, 25B, 25C, 25D), and a neural network (27) or a combination of a hologram element, a photo-detector array and a neural network.
    • 一种光接收机,包括将波长差变换为空间功率分布差异的光转换装置,以及用于识别空间功率分布图案和取出输出信号的模式识别元件。 在光转换装置的输出部分(24)处,不同波长的空间功率分布是不同的。 在通过模式识别元件(25A,25B,25C,25D)将空间功率分布转换为电信号之后,执行信号的模式识别,以再生具有相应波长的原始信号。 光转换装置使用衍射光栅或光多模电路(22),光多模光纤(20)和多个光波导的组合。 图案识别元件由光电检测器阵列(25A,25B,25C,25D)和神经网络(27)或全息元件,光电检测器阵列和神经网络的组合构成。
    • 10. 发明公开
    • OPTICAL INTERFERENCE FILTER DEVICE, ESPECIALLY FOR AN OPTICAL WAVELENGTH LOCKING DEVICE
    • 光学干涉滤光器装置,特别是用于光学波长锁定装置
    • EP3321720A1
    • 2018-05-16
    • EP16198701.1
    • 2016-11-14
    • ADVA Optical Networking SE
    • Wohlfeil, Benjamin
    • G02B6/293H01S5/068H04B10/50
    • G02B6/29338G02B6/29343G02B6/29344G02B6/29347G02B6/29389G02B6/4215H01S3/08027H01S5/026H01S5/0261H01S5/0687H01S5/141H04B10/5057H04B10/572
    • The invention relates to an optical interference filter device (126), especially for an optical wavelength locking device (110), which defines a first periodic filter frequency response between a first filter output port (130) and a filter input port (128) and a second periodic filter frequency response having the same free spectral range (FSR M ) as the first periodic frequency response between a second filter output port (132) and the filter input port (128), wherein the first and second periodic filter frequency responses are shifted versus each other by a predetermined optical frequency distance (fsr 12 ). According to the invention the optical interference filter device (126) comprises an optical ring resonator structure (152) and an optical combining and phase shifting structure (154). The optical ring resonator structure (152) comprises two optically coupled ring-shaped optical waveguides (160, 162), each of which is further coupled to a dedicated optical port waveguide (156, 158), wherein one (156) of the optical port waveguides (156, 158) defines the filter input port (128) at a first end thereof and first resonator output port (164) at a second end thereof and wherein the other (158) of the optical port waveguides (156, 158) has an open first end (166) and defines a second resonator output port /168) at a second end thereof. The optical combining and phase shifting structure (154) has a first and second input port (178, 182) and a first and second output port, the first input port (178) being connected to the first resonator output port (164) and the second input port (182) being connected to the second resonator output port (168), the first and second output ports defining the first and second filter output ports (130, 132), respectively. The optical combining and phase shifting structure (154) further comprises a first crossover path (190) between the first input port (178) and the second output port, a second crossover path 192) between the second input port (182) and the first output port, a first pass-through path (194) between the first input port (178) and the first output port and a second pass-through path (196) between the second input port (182) and the second output port, wherein in both pass-through paths (194, 196) and/or both crossover paths (190, 192) optical phase shifting means (198, 200; 198', 200') are provided which are configured to effect a phase shift difference of plus or minus 90 degrees between the optical signals that are guided in the first pass-through path (194) and the second crossover path (192) and a phase shift difference of minus or plus 90 degrees between the optical signals that are guided in the second pass-through path (196) and the first crossover path (190).
    • 本发明涉及一种特别用于光波长锁定装置(110)的光学干涉滤波器装置(126),其在第一滤波器输出端口(130)和滤波器输入端口(128)之间限定第一周期性滤波器频率响应,以及 具有与第二滤波器输出端口(132)和滤波器输入端口(128)之间的第一周期性频率响应相同的自由频谱范围(FSRM)的第二周期性滤波器频率响应,其中第一和第二周期性滤波器频率响应被移位 相互之间相隔预定的光学频率距离(fsr12)。 根据本发明,光学干涉滤波器装置(126)包括光学环形谐振器结构(152)和光学组合和相移结构(154)。 光学环形谐振器结构(152)包括两个光学耦合的环形光学波导(160,162),每个光学耦合环形光学波导进一步耦合到专用光学端口波导(156,158),其中光学端口 波导(156,158)在其第一端限定了滤波器输入端口(128)并且在其第二端限定了第一谐振器输出端口(164),并且其中光学端口波导(156,158)的另一个(158)具有 开放的第一端(166)并且在其第二端处限定第二谐振器输出端口/ 168)。 光学组合和相移结构(154)具有第一和第二输入端口(178,182)以及第一和第二输出端口,第一输入端口(178)连接到第一谐振器输出端口(164),并且第一 第二输入端口(182)连接到第二谐振器输出端口(168),第一和第二输出端口分别限定第一和第二滤波器输出端口(130,132)。 光学组合和相移结构(154)还包括第一输入端口(178)和第二输出端口之间的第一交叉路径(190),第二输入端口(182)和第一输入端口 输出端口,第一输入端口(178)和第一输出端口之间的第一直通路径(194)以及第二输入端口(182)和第二输出端口之间的第二直通路径(196),其中 在两个通过路径(194,196)和/或两个交叉路径(190,192)中,提供光学相移装置(198,200; 198',200'),其被配置为实现正相移 或第一交叉路径(192)中引导的光学信号与第二交叉路径(192)中引导的光学信号之间的相移差为负或正90度 直通路径(196)和第一交叉路径(190)。