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    • 13. 发明专利
    • Optical signal processor
    • 光信号处理器
    • JP2009053255A
    • 2009-03-12
    • JP2007217317
    • 2007-08-23
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • OBA NAOKISUZUKI MASAYAMINO SHINJIISHII MOTOHAYAARATAKE ATSUSHI
    • G02F3/00
    • G02B6/12021G02B6/12033G02B6/356G02F1/2955
    • PROBLEM TO BE SOLVED: To solve the following problems in a conventional optical signal processor: since a confocal optical system is constituted having a condenser lens at a nearly intermediate point in a spatial optical path, the distance of a spatial optical system is long; consequently it is difficult to make the whole optical signal processor compact and adjustment processing during manufacture of the optical signal processor requires high accuracy, and costs for the optical signal processor and a manufacturing method therefor are high. SOLUTION: The optical signal processor has greatly shortened length of the spatial optical system by devising a lens arrangement different from that of the confocal optical system. The optical signal processor includes a first condenser lens disposed very nearby a signal processing element and a second condenser lens disposed nearby a spectroscopic element, the distance between the spectroscopic element and the signal processing element is nearly equal to the focal length of the first condenser lens. An optical path length can be shortened to a half of that of a conventional technique. A function of the second condenser lens can be included in an AWG having light condensing operation. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决以往光信号处理器中的以下问题:由于共焦光学系统在空间光路的近似中间点处具有聚光透镜,所以空间光学系统的距离为 长; 因此难以使整个光信号处理器紧凑,并且在光信号处理器的制造期间的调整处理需要高精度,并且光信号处理器的成本及其制造方法高。 解决方案:通过设计不同于共焦光学系统的透镜布置,光信号处理器大大缩短了空间光学系统的长度。 光信号处理器包括设置在信号处理元件附近的第一聚光透镜和设置在分光元件附近的第二聚光透镜,分光元件与信号处理元件之间的距离几乎等于第一聚光透镜的焦距 。 光路长度可以缩短到常规技术的一半。 第二聚光透镜的功能可以包括在具有聚光操作的AWG中。 版权所有(C)2009,JPO&INPIT
    • 20. 发明专利
    • Arrayed waveguide diffraction grating type optical multiplexer/demultiplexer
    • 阵列波导衍射光栅类型光学多路复用器/解复用器
    • JP2011034056A
    • 2011-02-17
    • JP2010101163
    • 2010-04-26
    • Furukawa Electric Co Ltd:The古河電気工業株式会社
    • HASEGAWA JUNICHINARA KAZUTAKA
    • G02B6/12
    • G02B6/1203G02B6/12033
    • PROBLEM TO BE SOLVED: To obtain an arrayed waveguide diffraction grating type optical multiplexer/demultiplexer by which a waveguide chip shape can be determined without considering a sticking space of a compensation member. SOLUTION: With a change in temperature, a condensing position by an input slab waveguide 22 changes. However, when a compensation plate 18 with one side fixed to a first glass plate 32 and the other side fixed to a second glass plate 34 contracts/expands by the change in temperature, the first and the second glass plate 32, 34 relatively move, by which a first waveguide chip 16A and a second waveguide chip 16B relatively move along the cutting plane 30, with the condensing position corrected. Thus, by separately installing the first glass plate 32 and the second glass plate 34 detached from the first glass plate 32, the shape of the first waveguide chip 16A and of the second waveguide chip 16B can be determined without considering the sticking space of the compensation plate 18. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了获得可以在不考虑补偿构件的粘贴空间的情况下确定波导芯片形状的阵列波导衍射光栅型光复用器/解复用器。 解决方案:随着温度的变化,输入平板波导22的聚光位置发生变化。 然而,当固定到第一玻璃板32的一侧的补偿板18和固定到第二玻璃板34的另一侧由于温度变化而收缩/膨胀时,第一和第二玻璃板32,34相对移动, 第一波导芯片16A和第二波导芯片16B沿着切割平面30相对移动,校正了聚光位置。 因此,通过分开安装从第一玻璃板32分离的第一玻璃板32和第二玻璃板34,可以确定第一波导芯片16A和第二波导芯片16B的形状,而不考虑补偿的粘贴空间 版权所有(C)2011,JPO&INPIT