公开(公告)号：US06731828B2

公开(公告)日：2004-05-04

申请号：US10185817

申请日：2002-06-28

申请人： Tsutomu Kitou ,  Yasuyuki Inoue ,  Manabu Oguma ,  Takayuki Mizuno ,  Yoshinori Hibino ,  Masaki Koutoku

发明人： Tsutomu Kitou ,  Yasuyuki Inoue ,  Manabu Oguma ,  Takayuki Mizuno ,  Yoshinori Hibino ,  Masaki Koutoku

IPC分类号： G02B612

CPC分类号： G02B6/138 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/122 ,  G02B6/1221 ,  G02B6/132 ,  G02B6/136 ,  G02B2006/12061 ,  G02B2006/12069 ,  G02B2006/12109 ,  G02B2006/12147 ,  G02B2006/12159 ,  G02B2006/12164 ,  G02B2006/12173

摘要： It is an object of the present invention to reduce the size of a circuit and the adverse effects of fabrication errors, while increasing yield. Signal light incident on a circuit through input waveguides propagates from the exterior to interior of the circuit while rotating counterclockwise. The signal light passes through a point of inflection in the center of the circuit, subsequently propagate clockwise from the interior to exterior of the circuit, and then exit output waveguides. Two arms constituting a delay circuit and optical couplers can be integrated together at such an interval that they are not coupled together. Therefore, the size of the circuit can be reduced compared to the prior art.

摘要翻译： 本发明的一个目的是减小电路的尺寸和制造误差的不利影响，同时提高产量。 通过输入波导入射到电路上的信号光在逆时针旋转的同时从电路的外部传播到内部。 信号光通过电路中心的拐点，随后从电路的内部向外传播顺时针，然后退出输出波导。 构成延迟电路和光耦合器的两个臂可以以不会耦合在一起的间隔被集成在一起。 因此，与现有技术相比，可以减小电路的尺寸。

公开(公告)号：US07397977B2

公开(公告)日：2008-07-08

申请号：US10540734

申请日：2003-12-25

申请人： Toshikazu Hashimoto ,  Ikuo Ogawa ,  Takeshi Kitagawa ,  Senichi Suzuki ,  Masahiro Yanagisawa ,  Tomohiro Shibata ,  Masaki Koutoku ,  Hiroshi Takahashi ,  Ryou Nagase ,  Masaru Kobayashi ,  Shuichiro Asakawa ,  Yoshiteru Abe ,  Tsutomu Kitoh ,  Takaharu Ohyama

发明人： Toshikazu Hashimoto ,  Ikuo Ogawa ,  Takeshi Kitagawa ,  Senichi Suzuki ,  Masahiro Yanagisawa ,  Tomohiro Shibata ,  Masaki Koutoku ,  Hiroshi Takahashi ,  Ryou Nagase ,  Masaru Kobayashi ,  Shuichiro Asakawa ,  Yoshiteru Abe ,  Tsutomu Kitoh ,  Takaharu Ohyama

IPC分类号： G02B6/12

CPC分类号： G02B6/12009 ,  G02B6/12007

摘要： A wave transmission medium includes an input port 3-1 and an output port 3-2. A field distribution 1 and a field distribution 2 are obtained by numerical calculations. The field distribution 1 is a field distribution of the propagation light (forward propagation light) launched into the input port 3-1. The field distribution 2 is a field distribution of the phase conjugate light (reverse propagation light) resulting from reversely transmitting from the output port side an output field that is expected to be output from the output port 3-2 when an optical signal is launched into the input port 3-1. According to the field distributions 1 and 2, a spatial refractive index distribution is calculated such that the phase difference between the propagation light and reverse propagation light is eliminated at individual points (x, z) in the medium.

摘要翻译： 波传输介质包括输入端口3-1和输出端口3-2。 通过数值计算获得场分布1和场分布2。 场分布1是发射到输入端口3-1中的传播光（正向传播光）的场分布。 场分布2是当从发射光信号被发射到期望从输出端口3-2输出的输出端从输出端侧反向发送的相位共轭光（反向传播光）的场分布 输入端口3 - 1。 根据场分布1和2，计算空间折射率分布，使得在介质中的各个点（x，z）消除传播光和反向传播光之间的相位差。

公开(公告)号：US20060126992A1

公开(公告)日：2006-06-15

申请号：US10540734

申请日：2003-12-25

申请人： Toshikazu Hashimoto ,  Ikuo Ogawa ,  Takeshi Kitagawa ,  Senichi Suzuki ,  Masahiro Yanagisawa ,  Tomohiro Shibata ,  Masaki Koutoku ,  Hiroshi Takahashi ,  Ryou Nagase ,  Masaru Kobayashi ,  Shuichiro Asakawa ,  Yoshiteru Abe ,  Tsutomu Kitoh ,  Takaharu Ohyama

发明人： Toshikazu Hashimoto ,  Ikuo Ogawa ,  Takeshi Kitagawa ,  Senichi Suzuki ,  Masahiro Yanagisawa ,  Tomohiro Shibata ,  Masaki Koutoku ,  Hiroshi Takahashi ,  Ryou Nagase ,  Masaru Kobayashi ,  Shuichiro Asakawa ,  Yoshiteru Abe ,  Tsutomu Kitoh ,  Takaharu Ohyama

IPC分类号： G02B6/12

CPC分类号： G02B6/12009 ,  G02B6/12007

摘要： A wave transmission medium includes an input port 3-1 and an output port 3-2. A field distribution 1 and a field distribution 2 are obtained by numerical calculations. The field distribution 1 is a field distribution of the propagation light (forward propagation light) launched into the input port 3-1. The field distribution 2 is a field distribution of the phase conjugate light (reverse propagation light) resulting from reversely transmitting from the output port side an output field that is expected to be output from the output port 3-2 when an optical signal is launched into the input port 3-1. According to the field distributions 1 and 2, a spatial refractive index distribution is calculated such that the phase difference between the propagation light and reverse propagation light is eliminated at individual points (x, z) in the medium.

摘要翻译： 波传输介质包括输入端口3-1和输出端口3-2。 通过数值计算获得场分布1和场分布2。 场分布1是发射到输入端口3-1中的传播光（正向传播光）的场分布。 场分布2是当从发射光信号被发射到期望从输出端口3-2输出的输出端从输出端侧反向发送的相位共轭光（反向传播光）的场分布 输入端口3 - 1。 根据场分布1和2，计算空间折射率分布，使得在介质中的各个点（x，z）消除传播光和反向传播光之间的相位差。