公开(公告)号：US5515196A

公开(公告)日：1996-05-07

申请号：US42380

申请日：1993-04-02

申请人： Shigeki Kitajima ,  Hirohisa Sano ,  Katsuhiko Kuboki ,  Shinya Sasaki

发明人： Shigeki Kitajima ,  Hirohisa Sano ,  Katsuhiko Kuboki ,  Shinya Sasaki

IPC分类号： G02F1/03 ,  G02F1/017 ,  G02F1/35 ,  H04B10/2513 ,  H04B10/2537 ,  H04B10/516 ,  H04B10/54 ,  H04B10/556 ,  H04B10/572 ,  H04B10/588 ,  H04B10/61 ,  H04B10/04

CPC分类号： B82Y20/00 ,  G02F1/01708 ,  H04B10/2537 ,  G02F2203/25

摘要： An optical transmitter apparatus comprises a light source for optical signal transmission, an intensity modulator, a transmit signal generator and a signal generator. A transmit signal to be transmitted is supplied from the transmit signal generator to the intensity modulator, while a signal generated by the signal generator is supplied to the phase modulator. A light beam emitted from the light source passes through the intensity modulator and the phase modulator to be subsequently sent out as an optical signal for transmission with intensity thereof being modulated upon passing through the intensity modulator while spectrum thereof being spread by phase modulation which the optical signal undergoes upon passing through the phase modulator.

摘要翻译： 光发射机装置包括用于光信号传输的光源，强度调制器，发射信号发生器和信号发生器。 要发送的发送信号从发送信号发生器提供给强度调制器，而由信号发生器产生的信号被提供给相位调制器。 从光源发射的光束通过强度调制器和相位调制器，随后作为光信号发送出去，随着其强度在通过强度调制器时被调制，而其光谱通过相位调制扩展，光学 信号在通过相位调制器时经历。

公开(公告)号：US4790614A

公开(公告)日：1988-12-13

申请号：US929911

申请日：1986-11-13

申请人： Katsuyuki Imoto ,  Hirohisa Sano ,  Minoru Maeda

发明人： Katsuyuki Imoto ,  Hirohisa Sano ,  Minoru Maeda

IPC分类号： G02B6/10 ,  G02B6/124 ,  G02B6/34 ,  G02B6/42

CPC分类号： G02B6/12007 ,  G02B6/10 ,  G02B6/124 ,  G02B6/29364 ,  G02B6/4246 ,  G02B2006/12109

摘要： An optical filter is formed by providing a plurality of gaps, which have a desired width and such a depth that is larger than the thickness of the waveguide layer, in a slab or a waveguide layer in a three-dimensional optical waveguide so as to extend in the light propagating direction at desired period intervals. These gaps are filled with a film of a material, the refractive index of which is different from that of the waveguide layer, to complete the optical filter. A multiplex wavelength transmission device is formed monolithically by providing at least one optical filter, which is formed in the above-mentioned manner, in an optical waveguide, and arranging one or both of a light-emitting semiconductor element and a photodetector on the side of an optical signal which has passed through the optical filter, and on the side of an optical signal which has been reflected on the same optical filter.

摘要翻译： 通过在三维光波导中的板或波导层中提供多个间隙，其形成具有期望宽度和比波导层的厚度大的深度的多个间隙，以便延伸 在光传播方向上以期望的周期间隔。 这些间隙填充有折射率不同于波导层的材料的膜，以完成滤光器。 通过在光波导中设置至少一个以上述方式形成的滤光器，并且将发光半导体元件和光电检测器中的一个或两个布置在 已经通过滤光器的光信号，以及已经在同一滤光器上反射的光信号的一侧。

公开(公告)号：US06813445B2

公开(公告)日：2004-11-02

申请号：US10059337

申请日：2002-01-31

申请人： Yasuyuki Fukashiro ,  Yukio Hayashi ,  Shigeki Kitajima ,  Tatsuo Kanetake ,  Masahiro Takatori ,  Shoichi Hanatani ,  Hirohisa Sano

发明人： Yasuyuki Fukashiro ,  Yukio Hayashi ,  Shigeki Kitajima ,  Tatsuo Kanetake ,  Masahiro Takatori ,  Shoichi Hanatani ,  Hirohisa Sano

IPC分类号： H04J1400

CPC分类号： H04B10/032 ,  H04Q11/0001 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0043 ,  H04Q2011/0058 ,  H04Q2011/0081

摘要： An optical crossconnect apparatus which includes one terminal connected to a transmission path from one optical transmission terminal station and another terminal connected to a transmission path from another optical transmission terminal station, a first optical signal switch having “M1” ports and “N1” ports, through which the optical signal can pass, a second optical signal switch having “M2” ports and “N2” ports, through which the optical signal can pass, and “L” optical signal repeaters, one end connected to the “N1” ports of the first optical signal switch, and the other end connected to the “N2” ports of the second optical switch. The “N1” and the “N2” ports are equal to “L” optical signal repeaters. The “M1” ports of the first optical signal switch connected to the one terminal, and the “M2” ports of the second optical signal switch connected to the other terminal are larger than, or equal to 2.

摘要翻译： 一种光交叉连接装置，包括连接到来自一个光传输终端站的传输路径的一个终端和连接到来自另一个光传输终端站的传输路径的另一终端，具有“M1”端口和“N1”端口的第一光信号交换机， 光信号可以通过的光信号可以通过的光信号可以通过的具有“M2”端口和“N2”端口的第二光信号交换机和“L”个光信号中继器，一端连接到“N1”端口 第一光信号开关，另一端连接到第二光开关的“N2”端。 “N1”和“N2”端口等于“L”个光信号中继器。 连接到一个端子的第一个光信号开关的“M1”端口和连接到另一个端子的第二个光信号开关的“M2”端口大于或等于2。

公开(公告)号：US06362905B1

公开(公告)日：2002-03-26

申请号：US09106903

申请日：1998-06-30

申请人： Yasuyuki Fukashiro ,  Yukio Hayashi ,  Shigeki Kitajima ,  Tatsuo Kanetake ,  Masahiro Takatori ,  Shoichi Hanatani ,  Hirohisa Sano

发明人： Yasuyuki Fukashiro ,  Yukio Hayashi ,  Shigeki Kitajima ,  Tatsuo Kanetake ,  Masahiro Takatori ,  Shoichi Hanatani ,  Hirohisa Sano

IPC分类号： H04J1402

CPC分类号： H04B10/032 ,  H04Q11/0001 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0043 ,  H04Q2011/0058 ,  H04Q2011/0081

摘要： An optical crossconnect apparatus which includes one terminal connected to a transmission path from one optical transmission terminal station and another terminal connected to a transmission path from another optical transmission terminal station, a first optical signal switch having “M1” ports and “N1” ports, through which the optical signal can pass, a second optical signal switch having “M2” ports and “N2” ports, through which the optical signal can pass, and “L” optical signal repeaters, one end connected to the “N1” ports of the first optical signal switch, and the other end connected to the “N2” ports of the second optical switch. The “N1” and the “N2” ports are equal to “L” optical signal repeaters. The “M1” ports of the first optical signal switch connected to the one terminal, and the “M2” ports of the second optical signal switch connected to the other terminal are larger than, or equal to 2.

公开(公告)号：US06317230B1

公开(公告)日：2001-11-13

申请号：US09114855

申请日：1998-07-14

申请人： Shigeki Kitajima ,  Shoichi Hanatani ,  Hirohisa Sano ,  Tatsuo Kanetake

发明人： Shigeki Kitajima ,  Shoichi Hanatani ,  Hirohisa Sano ,  Tatsuo Kanetake

IPC分类号： H04B1008

CPC分类号： H04B10/032 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0043 ,  H04Q2011/0058 ,  H04Q2011/0081

摘要： Input/output fibers for the optical cross-connect system are classified into working fibers and protecting fibers. In a normal time (a state in which there occurs no failure), there turns out to be a one-to-one correspondence between a line terminal and a working fiber. Namely, connection property required for the switch matrix in the optical cross-connect system is not necessarily strictly non-blocking connections among all of the fibers. The connection property is a one-to-one connection relationship with the working fibers, and is a predetermined connection relationship with the protecting fibers at the time of a failure occurrence. Utilization thereof makes it possible to extremely downsize scale of the switch.

摘要翻译： 光交叉连接系统的输入/输出光纤分为工作光纤和保护光纤。 在正常时间（没有发生故障的状态）中，线路终端和工作光纤之间的一一对应关系成立。 即，光交叉连接系统中的开关矩阵所需的连接特性不一定是所有光纤之间严格的非阻塞连接。 连接属性是与工作纤维的一对一连接关系，并且是在发生故障时与保护纤维的预定连接关系。 其利用使得可以极大地减小开关的尺寸。

公开(公告)号：US4953934A

公开(公告)日：1990-09-04

申请号：US280855

申请日：1988-12-07

申请人： Katsuyuki Imoto ,  Hirohisa Sano ,  Masaru Miyazaki ,  Naoyuki Matsuoka ,  Hisato Uetsuka

发明人： Katsuyuki Imoto ,  Hirohisa Sano ,  Masaru Miyazaki ,  Naoyuki Matsuoka ,  Hisato Uetsuka

IPC分类号： G02B6/12 ,  G02B6/34 ,  G02F1/01 ,  G02F1/313

CPC分类号： G02F1/3132 ,  G02F1/0147

摘要： A waveguide type light merging and branching device, in which a resistance layer is disposed on a surface of a substrate or at least on one side therein and a low refractive index layer (refractive index n.sub.b), a core waveguide layer (refractive index n.sub.c, n.sub.c >n.sub.b), and a cladding layer (refractive index n.sub.n, n.sub.n >n.sub.c) superposed thereon on each other, the resistance layer having electrode terminals at the two extremities thereof, to which a voltage is applied.

摘要翻译： 一种波导型光合并分支装置，其中电阻层设置在基板的表面或其至少一侧，低折射率层（折射率nb），芯波导层（折射率nc， nc> nb）和叠置在其上的包层（折射率nn，nn> nc），所述电阻层在其两端具有施加电压的两端的电极端子。

公开(公告)号：US4909584A

公开(公告)日：1990-03-20

申请号：US204551

申请日：1988-03-23

申请人： Katsuyuki Imoto ,  Hirohisa Sano ,  Hideaki Tsushima

发明人： Katsuyuki Imoto ,  Hirohisa Sano ,  Hideaki Tsushima

IPC分类号： G02B6/125 ,  G02B6/28 ,  G02B6/34 ,  H04B10/25

CPC分类号： G02B6/12007 ,  G02B6/125 ,  G02B6/2821 ,  G02B6/29355 ,  G02B6/2938 ,  G02B6/4246 ,  H04B10/2504

摘要： This invention relates to an optical multi/demultiplexer which will be useful for optical wavelength-division multiplexing communication using an optical fiber.In order to obtain high isolation, the optical multi/demultiplexer of the present invention constitutes three, mutually the same optical multi/demultiplexers by use of a main waveguide and first, second and third branch waveguides. Two rays of light having mutually different wavelenths, which are incident into the main waveguide, are isolated completely by the three optical multi/demultiplexers and are outputted.

摘要翻译： PCT No.PCT / JP87 / 00969 Sec。 371日期：1988年3月23日 102（e）1988年3月23日PCT PCT公开1987年12月11日PCT公布。 出版物WO88 / 04785 日期：1988年6月30日。本发明涉及对于使用光纤的光波分复用通信有用的光多路复用器。 为了获得高隔离度，本发明的光学多路复用/多路分离器通过使用主波导和第一，第二和第三分支波导构成三个相互相同的光学多路/多路分离器。 入射到主波导中的具有相互不同的波长的两束光线被三个光学多路/解复用器完全隔离，并被输出。

公开(公告)号：US4904037A

公开(公告)日：1990-02-27

申请号：US226014

申请日：1988-07-28

申请人： Katsuyuki Imoto ,  Hirohisa Sano ,  Yasuo Hira

发明人： Katsuyuki Imoto ,  Hirohisa Sano ,  Yasuo Hira

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/126

CPC分类号： G02B6/12007 ,  G02B6/122 ,  G02B6/126 ,  G02B2006/12169

摘要： A waveguide type optical device in which a waveguide layer for propagating light is provided on the front surface of a substrate, and a compensation layer having a coefficient of thermal expansion substantially equal to that of the waveguide layer formed on the front surface is provided on the rear surface of the substrate.

公开(公告)号：US4822128A

公开(公告)日：1989-04-18

申请号：US919635

申请日：1986-10-16

申请人： Katsuyuki Imoto ,  Hirohisa Sano

发明人： Katsuyuki Imoto ,  Hirohisa Sano

IPC分类号： B29D11/00 ,  G02B6/28

CPC分类号： B29D11/00663 ,  G02B6/2856

摘要： While a middle part of a plastic optical fiber bundle in a lengthwise direction thereof is being heated, it is twisted, and it is pulled in axial directions of the bundle. A biconically tapered portion is formed at the middle part of the bundle by the twisting and the pulling. When the biconically tapered portion has been formed into a predetermined shape, the heating is stopped, and simultaneously, a gas is blown against an outer periphery of the biconically tapered portion so as to rapidly cool this tapered portion. The biconically tapered portion is solidified to the predetermined shape by the rapid cooling.

摘要翻译： 当塑料光纤束在其长度方向上的中间部分被加热时，其被扭转，并且沿着该束的轴向被拉动。 通过扭转和拉动在束的中间部分处形成双锥形部分。 当双锥形部分已经形成预定的形状时，停止加热，并且同时将气体吹向双锥形部分的外周，以便快速冷却该锥形部分。 双锥形部分通过快速冷却固化成预定形状。