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    • 2. 再颁专利
    • Optical multiplexing device
    • 光复用器件
    • USRE43226E1
    • 2012-03-06
    • US12474875
    • 2009-05-29
    • Dmitri IazikovThomas W. MossbergChristoph M. Greiner
    • Dmitri IazikovThomas W. MossbergChristoph M. Greiner
    • G02B6/12G02B6/26G02B6/10H04J14/02
    • G02B6/29322G02B6/29326G02B6/29328G02B6/29329G02B6/29383H04J14/0201
    • An optical multiplexing device includes an optical element having at least one set of diffractive elements, and an optical reflector. The reflector routes, between first and second optical ports, that portion of an optical signal transmitted by the diffractive element set. The diffractive element set routes, between first and multiplexing optical ports, a portion of the optical signal that is diffracted by the diffractive element set. More complex optical multiplexing functionality(ies) may be achieved using additional sets of diffractive elements, in a common optical element (and possibly overlaid) or in separate optical elements with multiple reflectors. Separate multiplexing devices may be assembled with coupled ports for forming more complex devices. The respective portions of an optical signal transmitted by and reflected/diffracted from the diffractive element set typically differ spectrally. The portion reflected from the diffractive element set may comprise one or more channels of an optical WDM system.
    • 光学多路复用装置包括具有至少一组衍射元件的光学元件和光学反射器。 反射器在第一和第二光学端口之间路由由衍射元件组发送的光学信号的那部分。 在第一和多路复用光学端口之间的衍射元件集路由由衍射元件组衍射的光信号的一部分。 可以在普通光学元件(可能覆盖)中或在具有多个反射器的单独的光学元件中使用附加的衍射元件组来实现更复杂的光学复用功能。 单独的复用设备可以与用于形成更复杂设备的耦合端口组合。 通过衍射元件组发送和反射/衍射的光信号的各个部分通常在光谱上不同。 从衍射元件组反射的部分可以包括光学WDM系统的一个或多个通道。
    • 6. 发明授权
    • Wavelength division multiplexed optical communication system
    • 波分复用光通信系统
    • US06321001B1
    • 2001-11-20
    • US09336318
    • 1999-06-18
    • Donald G. Heflinger
    • Donald G. Heflinger
    • G02B628
    • G02B6/4215G02B6/29329G02B6/2938
    • A wavelength division multiplexed optical communication system comprises an optical waveguide having a plurality of gratings, each defining a node. A first grating is disposed at a first node couples impinging light at a plurality of preselected wavelengths into the waveguide. The coupled light propagates through the waveguide and is emitted at a second and at a third grating in directions corresponding to each of the preselected wavelengths. A plurality of optical sources is arranged proximate the first node, each source transmitting an optical signal at a preselected wavelength that differs from that transmitted by the other sources and arranged to transmit light to the first grating. Optical detectors are disposed proximate the second and the third nodes, and positioned in directions corresponding to the emitted light. Thus each detector detects one of the preselected wavelengths. This constitutes a broadcast type of communication system.
    • 波分复用光通信系统包括具有多个光栅的光波导,每个光栅限定节点。 布置在第一节点处的第一光栅将入射到多个预选波长的光耦合到波导中。 耦合的光通过波导传播并且在对应于每个预选波长的方向上在第二和第三光栅处发射。 多个光源被布置在第一节点附近,每个源以预选的波长发射光信号,该光信号与由其它光源传输的波长不同,并被布置成将光传输到第一光栅。 光学检测器设置在第二和第三节点附近,并且被定位在对应于发射的光的方向上。 因此,每个检测器检测预选波长之一。 这构成通信系统的广播类型。
    • 8. 发明授权
    • Optical add-drop multiplexer using optical circulators and photoinduced
Bragg gratings
    • 光分路器使用光环行器和光电导布拉格光栅
    • US5726785A
    • 1998-03-10
    • US604417
    • 1996-02-21
    • Mouhammad Jamil ChawkiEric DelevaqueValerie Tholey
    • Mouhammad Jamil ChawkiEric DelevaqueValerie Tholey
    • G02B6/34H04J14/02
    • G02B6/2932G02B6/29322G02B6/29383H04J14/0206H04J14/021H04J14/0213G02B6/02195G02B6/29328G02B6/29329H04J14/0209
    • This multiplexer adds to a group of optical signals, whose wavelengths belong to a group of wavelengths (.lambda.1 . . . .lambda.N) and drop from said group of signals at least one optical signal having a given wavelength, chosen from within the wavelength group and comprises at least one optical circulator (C1, C2) having an input for receiving the group of signals and an output, an optical selection means (MS) coupled, on one side, to the circulator and which comprises at least one photoinduced Bragg grating (R1 . . . RN), said photoinduced Bragg grating being associated with the given wavelength and which can be in a first state, where it reflects the signal having said given wavelength and where it transits signals having a wavelength different from the given wavelength or optionally in a second state where it transmits all the signals, and a means (MC) for the control of said selection means (MS) for placing the grating in said second state, the selection means cooperating with each optical circulator for adding and dropping the optical signal or signals. Application to optical telecommunications.
    • 该多路复用器将一组光信号添加到一组光信号中,该组信号的波长属于一组波长(λ1.λN),并且从所述信号组下降至少一个具有给定波长的光信号,该波长选自波长组 并且包括至少一个光环行器(C1,C2),其具有用于接收所述信号组和输出的输入端;光学选择装置(MS),其在一侧耦合到所述环行器,并且包括至少一个光致导电的布拉格光栅 (R1 ... RN),所述光诱导布拉格光栅与给定波长相关联并且可以处于第一状态,其中它反射具有所述给定波长的信号,并且其中它转移具有不同于给定波长的波长的信号, 可选地在其发送所有信号的第二状态中,以及用于控制所述选择装置(MS)以将光栅置于所述第二状态的装置(MC),所述选择装置与eac协作 h光环行器,用于添加和删除光信号或信号。 应用于光通信。