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69 条记录 (耗时 0.029 秒)

    Optical filter
    51.
    发明申请
    Optical filter 失效
    滤光片

    公开(公告)号：US20010036005A1

    公开(公告)日：2001-11-01

    申请号：US09840929

    申请日：2001-04-25

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Hitoshi Hatayama ,  Masayuki Nishimura

    IPC分类号： H01S003/00

    CPC分类号： G02F1/225 ,  G02F1/0147 ,  G02F2001/311 ,  G02F2201/14

    摘要： A main optical path disposed between light input and output ends and an auxiliary optical path disposed so as to correspond to the main optical path are optically coupled to each other with first, second, and third optical couplers. The respective optical path lengths of main and auxiliary optical paths differ from each other between the first and second optical couplers and between the second and third optical couplers. Between the first and second optical couplers and between the second and third optical couplers, at least one of the main and auxiliary optical paths is provided with temperature adjusting means for adjusting the temperature of the corresponding optical path.

    摘要翻译： 设置在光输入和输出端之间的主光路和设置成对应于主光路的辅助光路通过第一，第二和第三光耦合器彼此光耦合。 主光路和辅助光路各自的光路长度在第一和第二光耦合器之间以及第二和第三光耦合器之间彼此不同。 在第一和第二光耦合器之间以及第二和第三光耦合器之间，主光路和辅助光路中的至少一个光路设置有温度调节装置，用于调节相应光路的温度。

    Linearized optic modulator with segmented electrodes
    52.
    发明授权
    Linearized optic modulator with segmented electrodes 失效
    具有分段电极的线性化光学调制器

    公开(公告)号：US5854862A

    公开(公告)日：1998-12-29

    申请号：US865532

    申请日：1997-05-29

    申请人： Halvor Skeie

    发明人： Halvor Skeie

    IPC分类号： G02F1/035 ,  G02F1/225 ,  G02F1/31 ,  G02F1/313 ,  G02F1/01

    CPC分类号： G02F1/225 ,  G02F1/3136 ,  G02F2001/311 ,  G02F2203/19

    摘要： A plurality of optic modulators implemented using segmented electrodes and nonparallel waveguide structures are cascaded using optical couplers to provide a linearization of the overall electro-optic transfer function. Each of the optical modulators which are coupled in cascade have an electrode structure which is divided into a plurality of relatively small segments. The segments are connected via bond wires and transmission lines on an adjoining microwave circuit board. Each of the optical modulators includes a pair of waveguides which are sloped so as to result in a nonparallel waveguide structure which reduces acoustic effects, e.g., ripple. By using a plurality of small segments to implement the electrode structure a high degree of sensitivity is achieved as compared to when a single lengthy electrode structure is used. The combination of the non-parallel waveguides and a segmented electrode provides for a relatively large flat frequency response, e.g., in excess of 1 GHz. The electrode structure is also designed to minimize the effective capacitance of the electrode structure to thereby broaden the bandwidth of the optic modulator of the present invention as compared to devices using solid center electrodes.

    摘要翻译： 使用分段电极和非平行波导结构实现的多个光学调制器使用光耦合器级联以提供总体电光传递函数的线性化。 串联耦合的每个光调制器具有被分成多个相对较小的段的电极结构。 这些段通过接合线和传输线连接在相邻的微波电路板上。 每个光调制器包括一对波导，它们是倾斜的，以便导致不平行的波导结构，这减少了声效，例如纹波。 与使用单个长度的电极结构相比，通过使用多个小段来实现电极结构，实现了高度的灵敏度。 非平行波导和分段电极的组合提供了比较大的平坦频率响应，例如超过1GHz。 与使用固体中心电极的装置相比，电极结构也被设计成使电极结构的有效电容最小化，从而拓宽本发明的光调制器的带宽。

    Optical switch, optical demodulator, and optical demodulation method having feedback control of temperature regulator based on optical detector output
    59.
    发明授权
    Optical switch, optical demodulator, and optical demodulation method having feedback control of temperature regulator based on optical detector output 有权
    具有基于光检测器输出的温度调节器反馈控制的光开关，光解调器和光解调方法

    公开(公告)号：US09184865B2

    公开(公告)日：2015-11-10

    申请号：US13613297

    申请日：2012-09-13

    申请人： Tomoyuki Akiyama

    发明人： Tomoyuki Akiyama

    IPC分类号： G01N21/25 ,  H01J7/24 ,  H04J14/02 ,  G02F1/01 ,  G02B6/12 ,  G02F1/313 ,  G02F1/31

    CPC分类号： H04J14/0212 ,  G02B6/12007 ,  G02F1/0147 ,  G02F1/313 ,  G02F1/3132 ,  G02F2001/311 ,  G02F2201/06 ,  G02F2201/58 ,  G02F2202/101 ,  G02F2202/105 ,  G02F2203/05 ,  G02F2203/15 ,  G02F2203/58 ,  G02F2203/585 ,  H04J14/02

    摘要： An optical switch includes a substrate, a ring resonator formed on the substrate, a first waveguide formed on the substrate in optical coupling with the ring resonator, the first waveguide being configured to guide a WDM signal, an optical detector configured to detect an optical signal component in said ring resonator, a temperature regulator driven in response to an output signal of the optical detector, the temperature regulator being configured to change a temperature of the ring resonator, the ring resonator having a resonant wavelength corresponding to a wavelength of an optical signal component that constitutes the WDM signal, the ring resonator, the optical detector and the temperature regulator constituting together a feedback control system that locks the resonant wavelength of the ring resonator to the wavelength of the optical signal component in the WDM signal.

    摘要翻译： 光开关包括基板，形成在基板上的环形谐振器，与环形谐振器光耦合的基板上形成的第一波导，第一波导被配置为引导WDM信号;光检测器，被配置为检测光信号 所述环形谐振器中的分量，响应于所述光学检测器的输出信号而被驱动的温度调节器，所述温度调节器被配置为改变所述环形谐振器的温度，所述环形谐振器具有对应于光学信号的波长的谐振波长 构成WDM信号的分量，环形谐振器，光学检测器和温度调节器，构成将环形谐振器的谐振波长锁定在WDM信号中的光信号分量的波长的反馈控制系统。