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公开(公告)号：US20040085620A1
公开(公告)日：2004-05-06
申请号：US10627782
申请日：2003-07-28
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： G02F001/35 , G02F002/02
CPC分类号： G02F2/02
摘要： A low-noise optical frequency converter uses a predetermined microwave electric signal to modulate an input light wave and output a light wave that includes a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband. The frequency converter modulates a light wave identical to the input light wave with a signal having a frequency that is three times that of the microwave signal, to form a first light wave having a first-order lower-sideband or upper-sideband. The first light wave is mixed with a second light wave having a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband, with a phase of the third-order lower-sideband or upper-sideband reversed to a phase of the first light wave, thereby suppressing third-order sidebands.
摘要翻译： 低噪声光频变换器使用预定的微波电信号来调制输入光波并输出包括一阶上边带或下边带和三阶下边带或上边带的光波。 变频器利用具有三倍于微波信号的频率的信号来调制与输入光波相同的光波，以形成具有一级下边带或上边带的第一光波。 第一光波与具有一阶上边带或下边带和三阶下边带或上边带的第二光波混合，具有三阶下边带或上边带的相位， 边带反转到第一光波的相位，从而抑制三阶边带。
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公开(公告)号：US20030190119A1
公开(公告)日：2003-10-09
申请号：US10345971
申请日：2003-01-17
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： G02B006/26
CPC分类号： G02B6/2861
摘要： A variable-optical-delay apparatus with a single wavelength converter and optical loop path has an optical modulator able to adjust the delay time according to the input optical signal. The variable-optical-delay apparatus has an optical input section and an optical output section, an optical filter and a wavelength shifter able to adjust an amount by which a wavelength of an input optical signal is shifted disposed on an optical path extending from the input section to the output section. The input optical signal is output from the output section after passing the wavelength shifter a number of times that is determined according to the input optical signal. A resonant type optical modulator can be used that is set between filters, or set between a filter and a reflector. Part of an optical path from the input section to the output section is in the form of an optical loop, an optical modulator is provided on the optical loop.
摘要翻译： 具有单波长转换器和光环路的可变光延迟装置具有能够根据输入的光信号调整延迟时间的光调制器。 可变光延迟装置具有光输入部和光输出部，光滤波器和波长移动器，其能够调整输入光信号的波长偏移设置在从输入端延伸的光路上的量 截面到输出部分。 输入光信号在通过波长移位器之后根据输入的光信号确定的次数从输出部分输出。 可以使用设置在过滤器之间或设置在过滤器和反射器之间的共振型光学调制器。 从输入部分到输出部分的光路的一部分是光环路的形式，在光环路上提供光调制器。
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3.发明申请公开(公告)号：US20040130341A1
公开(公告)日：2004-07-08
申请号：US10721408
申请日：2003-11-26
IPC分类号： G01R031/308
CPC分类号： G01R31/311
摘要： A method and apparatus are provided that make it possible to speedily measure, and obtain images of, the three-dimensional distribution of electric fields in integrated circuits, using electro-optic sampling. The sampling is performed using a plurality of electric field sensors, each comprising an electro-optic crystal layer, a light-reflecting layer that is in close contact with the electro-optic crystal layer, and a separation layer that is in close contact with the reflection layer, separating the reflection layer from the object to be measured.
摘要翻译： 提供了一种方法和装置，其可以使用电光采样来快速测量和获得集成电路中的电场的三维分布的图像。 使用多个电场传感器进行采样，每个电场传感器包括电光晶体层，与电光晶层紧密接触的光反射层和与该电光晶体层紧密接触的分离层 反射层，将反射层与被测量物体分开。
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4.发明申请Optical modulator and optical signal and electric wave signal converter using same 有权光调制器和光信号和电波信号转换器使用相同公开(公告)号：US20030128417A1
公开(公告)日：2003-07-10
申请号：US10329537
申请日：2002-12-27
IPC分类号： G02F001/035 , G02F001/00 , G02B026/00 , G02F001/01
CPC分类号： H04B10/50575 , G02F1/0123 , G02F1/0356 , G02F1/2255 , G02F2001/212 , G02F2201/307 , H04B10/505
摘要： An optical modulation apparatus includes an optical signal input section, an optical signal propagation path, an optical modulator that modulates the phase of optical signals in at least two of a plurality of optical paths, and a wavelength selective filter that selectively reflects and transmits. Optical signals input via the input section are divided into a plurality of optical paths at a branching point and phase modulated by the phase modulator, that divides the optical path into a plurality of optical paths. Light transmitted by the filter is output via the output section, while light reflected by the filter travels back along the optical path and is again phase modulated by the phase modulator combined at the branching point and output from the input section as an intensity modulated optical signal.
摘要翻译： 光调制装置包括：光信号输入部，光信号传播路径，调制多个光路中的至少两个的光信号的相位的光调制器;以及选择性地反射和发送的波长选择滤波器。 通过输入部分输入的光信号在分支点被分成多个光路，并由相位调制器相位调制，将光路分成多个光路。 由滤波器发射的光通过输出部分输出，而由滤光器反射的光沿着光路返回，并且由在分支点处组合并由输入部分输出的相位调制器再次相位调制，作为强度调制光信号 。
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5.发明申请公开(公告)号：US20020154378A1
公开(公告)日：2002-10-24
申请号：US10092628
申请日：2002-03-08
IPC分类号： G02F001/03 , G02F001/07
CPC分类号： G02F1/2255
摘要： A resonance type optical modulator includes an optical path having electro-optical effect characteristics, a modulation electrode formed along the optical path for applying an electric field to the optical path, a common electrode formed in opposition to the modulation electrode, a feeding line that is connected to the modulation electrode and stubs connected to the feeding line, wherein the feeding line, stubs and common electrode are provided on one side of a region that is divided by the modulation electrode. A specific example is a resonance type optical modulator using a symmetric or an asymmetric electrode, that includes an optical path having electro-optical effect characteristics, a first stub (an open stub) (an open-ended asymmetric coplanar waveguide) or a short stub (a short-ended asymmetric coplanar waveguide), a second stub (an open or short stub) connected to the first stub, a feeding line connected to the first and second stubs and a common electrode, wherein the first and second stubs are formed along a single optical path to comprise a modulation electrode for applying an electric field to the optical path. As a result, the modulator has a configuration easy to fabricate without damaging the effective modulation field strength applied to the optical path, making it possible to realize high modulation efficiency with a low level of electric power.
摘要翻译： 共振型光调制器包括具有电光效应特性的光路，沿着用于向光路施加电场的光路形成的调制电极，与调制电极相对形成的公共电极， 连接到调制电极和连接到馈电线的短截线，其中馈电线，短截线和公共电极设置在由调制电极分割的区域的一侧上。 一个具体实例是使用对称或不对称电极的共振型光学调制器，其包括具有电光效应特性的光路，第一短截线（开口短截线）（开口端不对称共面波导）或短截线 （短端不对称共面波导），连接到第一短截线的第二短截线（开口或短截线），连接到第一和第二短截线的馈电线和公共电极，其中第一和第二短截线沿着 包括用于向光路施加电场的调制电极的单个光路。 结果，调制器具有易于制造而不损害施加到光路的有效调制场强的构造，使得可以以低电平实现高调制效率。
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