公开(公告)号：US06597838B1

公开(公告)日：2003-07-22

申请号：US09135730

申请日：1998-08-18

申请人： Chan Yong Park ,  Seung Won Lee ,  Dug Bong Kim ,  Kwang Ryong Oh ,  Hong Man Kim

发明人： Chan Yong Park ,  Seung Won Lee ,  Dug Bong Kim ,  Kwang Ryong Oh ,  Hong Man Kim

IPC分类号： G02B634

CPC分类号： G02B6/12002 ,  G02B6/12007 ,  G02B2006/12107 ,  G02B2006/12147

摘要： The present invention relates to an optical filter whose a sidelobe disturbing a characteristic of an optical filter by weighting an optical coupling efficiency between waveguides is controlled upon applying a selective area growth method in a wavelength selective variable semiconductor optical filter and method of fabricating the same. The present invention can control the thickness of growth layer selectively by controlling the width of the dielectric thin film mask whose the growth is not achieved in the selective area growth method, can control the distance between two waveguides of the wavelength selective variable semiconductor optical filter by applying the result on the distance control between two waveguides. Accordingly, there can be changed an optical coupling efficiency between two waveguides spatially. Because the sidelobe characteristics is largely improved if the distance between two waveguides is controlled temporarily to be corresponded to one period of Hamming function, there can be fabricated a semiconductor optical filter whose the characteristic is very excellent when applying the present invention.

摘要翻译： 本发明涉及一种滤光器，其通过在波长选择性可变半导体光学滤波器中应用选择性区域增长方法及其制造方法来控制通过对波导之间的光耦合效率进行加权来干扰滤光器的特性的旁瓣。 本发明可以通过控制在选择区域生长方法中未实现生长的电介质薄膜掩模的宽度来选择性地控制生长层的厚度，可以通过以下方式控制波长选择性可变半导体光学滤波器的两个波导之间的距离 将结果应用于两个波导之间的距离控制。 因此，可以在空间上改变两个波导之间的光耦合效率。 因为如果临时控制两个波导之间的距离以对应于汉明功能的一个周期，则旁瓣特性被大大改善，所以可以制造当应用本发明时其特性非常好的半导体滤光器。

公开(公告)号：US6101302A

公开(公告)日：2000-08-08

申请号：US150695

申请日：1998-09-10

申请人： Chan Yong Park ,  Dug Bong Kim ,  Seung Won Lee ,  Jeong Soo Kim

发明人： Chan Yong Park ,  Dug Bong Kim ,  Seung Won Lee ,  Jeong Soo Kim

IPC分类号： G02B5/20 ,  G02B6/34

CPC分类号： G02B5/1814 ,  G02B6/12002 ,  G02B6/124 ,  G02B6/29329 ,  G02B6/29395 ,  G02B6/355

摘要： The present invention relates to an optical filter for selecting a wavelength to be used in an optical communication and optical switching equipment and, more particularly, to an optical filter in order to reduce a sidelobe deteriorating its characteristics. The optical filter according to the present invention includes a plurality of pair gratings formed in a cladding layer, wherein a period of the grating pairs is constant throughout the optical filter, wherein the pair gratings are divided into two unit gratings, and wherein intervals between unit grating within pair grating are spatially different.

摘要翻译： 本发明涉及用于选择在光通信和光交换设备中使用的波长的光滤波器，更具体地说，涉及一种滤光器，以减少旁瓣劣化其特性。 根据本发明的滤光器包括形成在包层中的多个对光栅，其中光栅对的周期在整个滤光器中是恒定的，其中对光栅被分成两个单位光栅，并且其中单元间的间隔 对光栅内的光栅在空间上是不同的。

公开(公告)号：US5472505A

公开(公告)日：1995-12-05

申请号：US359198

申请日：1994-12-19

申请人： Bun Lee ,  Dug-Bong Kim ,  Jong-Hyeob Baek

发明人： Bun Lee ,  Dug-Bong Kim ,  Jong-Hyeob Baek

IPC分类号： C23C16/52 ,  C30B25/02 ,  C23C14/00

CPC分类号： C30B25/02 ,  C23C16/52 ,  Y10T117/10 ,  Y10T117/1004

摘要： An apparatus for monitoring a film growth is disclosed, in which, when a crystalline thin film is grown by applying an MOCVD (metalorganic chemical vapor deposition method), the variation of the thickness and composition due to certain factors can be detected with real time during the film growing process, and an in-situ adjustment is possible. As the optical detector for detecting two sets of reflected beams which are reflected from the film, a silicon detector and a germanium detector are used, the former being suitable for detecting short wavelength laser beams, and the latter being suitable for detecting long wavelength laser beams. Thus two different wavelengths are detected with real time, thereby measuring the thickness and composition of the film.

摘要翻译： 公开了一种用于监测膜生长的装置，其中当通过施加MOCVD（金属有机化学气相沉积法）生长结晶薄膜时，可以实时检测由于某些因素导致的厚度和组成的变化 成膜过程和原位调整是可能的。 作为用于检测从膜反射的两组反射光束的光检测器，使用硅检测器和锗检测器，前者适用于检测短波长激光束，后者适用于检测长波长激光束 。 因此，实时检测两个不同的波长，从而测量膜的厚度和组成。

公开(公告)号：US07684667B2

公开(公告)日：2010-03-23

申请号：US12175649

申请日：2008-07-18

申请人： Dug Bong Kim ,  Hyung Myung Moon ,  Chan Yong Park ,  Jin Bong Kim

发明人： Dug Bong Kim ,  Hyung Myung Moon ,  Chan Yong Park ,  Jin Bong Kim

IPC分类号： G02B6/30

CPC分类号： G02B6/12007 ,  G02B6/3636 ,  G02B6/3652 ,  G02B6/4214 ,  G02B6/4249 ,  G02B6/43

摘要： A hybrid integrated structure of an optical active device and a Planar Lightwave Circuit (PLC) device using an optical fiber array is provided, in which one or more photodiodes are integrated on an upper cladding layer above one or more planar optical waveguides. A section located on a boundary surface between output optical waveguides, that is, an end of the PLC device in the direction of propagation of light, and the input end of an output optical fiber array is ground to be inclined at a predetermined angle with respect to an optical axis. Further, one or more optical fibers and one or more reflection mirrors are alternately arranged, inserted, and disposed in a plurality of V-shaped trenches formed in the output optical fiber array.

摘要翻译： 提供了一种使用光纤阵列的光学有源器件和平面光波电路（PLC）器件的混合集成结构，其中一个或多个光电二极管集成在一个或多个平面光波导上的上覆层上。 位于输出光波导之间的边界面上的部分，即PLC装置在光的传播方向上的端部和输出光纤阵列的输入端的部分被磨削成相对于 到光轴。 此外，一个或多个光纤和一个或多个反射镜交替地布置，插入和布置在形成在输出光纤阵列中的多个V形沟槽中。

公开(公告)号：US06282343B1

公开(公告)日：2001-08-28

申请号：US09440931

申请日：1999-11-16

申请人： Dug-bong Kim ,  Jung-hwan Cho ,  Sang-yun Yi ,  Tae-hyung Rhee

发明人： Dug-bong Kim ,  Jung-hwan Cho ,  Sang-yun Yi ,  Tae-hyung Rhee

IPC分类号： G02B642

CPC分类号： G02B6/125

摘要： An optical coupler and a method of manufacturing the same are provided. The optical coupler includes an input optical waveguide and N output optical waveguides, and divides an optical signal received from the input optical waveguide into N optical signals. The optical coupler further includes a plurality of Y-junction optical waveguide modules configured in m stages, for branching the received optical signal into two optical signals at each stage, and a plurality of curved optical waveguides alternately connected to the Y-junction optical waveguide modules, at least one curved optical waveguide connected between Y-junction optical waveguide modules in the m-th stage and the output optical waveguides, wherein when the guiding direction of the optical signal is set to be the longitudinal axis, and the junction between the input optical waveguide and the first-stage Y-junction optical waveguide module is set to be the starting point, the positions and sizes of the Y-junction optical waveguide modules and the curved optical waveguides are determined in order to minimize the longest path among N paths ranging from the starting point to each of the output optical waveguides. An optical coupler is manufactured using Y-junction optical waveguide modules and connection optical waveguide modules, such that various Y-junction optical waveguide structures can be designed. Also, the degree of freedom upon layout of modules is increased, so that design of the optical coupler is easy.

摘要翻译： 提供一种光耦合器及其制造方法。 光耦合器包括输入光波导和N输出光波导，并将从输入光波导接收的光信号分成N个光信号。 该光耦合器还包括多个以m级配置的Y结光波导模块，用于将接收到的光信号在每一级分支成两个光信号，并且多个弯曲光波导交替地连接到Y结光波导模块 ，连接在第m级的Y结光波导模块和输出光波导之间的至少一个弯曲光波导，其中当光信号的引导方向被设置为纵向轴线时，以及输入端 光波导和第一级Y结光波导模块被设置为起点，确定Y结光波导模块和弯曲光波导的位置和大小，以使N路径中的最长路径最小化 从起始点到每个输出光波导。 使用Y结光波导模块和连接光波导模块制造光耦合器，从而可以设计各种Y结光波导结构。 此外，模块布局时的自由度增加，使得光耦合器的设计容易。

公开(公告)号：US20090067778A1

公开(公告)日：2009-03-12

申请号：US12175649

申请日：2008-07-18

申请人： Dug Bong KIM ,  Hyung Myung MOON ,  Chan Yong PARK ,  Jin Bong KIM

发明人： Dug Bong KIM ,  Hyung Myung MOON ,  Chan Yong PARK ,  Jin Bong KIM

IPC分类号： G02B6/12

CPC分类号： G02B6/12007 ,  G02B6/3636 ,  G02B6/3652 ,  G02B6/4214 ,  G02B6/4249 ,  G02B6/43

摘要： A hybrid integrated structure of an optical active device and a Planar Lightwave Circuit (PLC) device using an optical fiber array is provided, in which one or more photodiodes are integrated on an upper cladding layer above one or more planar optical waveguides. A section located on a boundary surface between output optical waveguides, that is, an end of the PLC device in the direction of propagation of light, and the input end of an output optical fiber array is ground to be inclined at a predetermined angle with respect to an optical axis. Further, one or more optical fibers and one or more reflection mirrors are alternately arranged, inserted, and disposed in a plurality of V-shaped trenches formed in the output optical fiber array.

摘要翻译： 提供了一种使用光纤阵列的光学有源器件和平面光波电路（PLC）器件的混合集成结构，其中一个或多个光电二极管集成在一个或多个平面光波导上的上覆层上。 位于输出光波导之间的边界面上的部分，即PLC装置在光的传播方向上的端部和输出光纤阵列的输入端的部分被磨削成相对于 到光轴。 此外，一个或多个光纤和一个或多个反射镜交替地布置，插入和布置在形成在输出光纤阵列中的多个V形沟槽中。

公开(公告)号：US06268949B1

公开(公告)日：2001-07-31

申请号：US09344125

申请日：1999-06-24

申请人： Jung-hwan Cho ,  Dug-bong Kim ,  Sang-yun Yi ,  Tae-hyung Rhee

发明人： Jung-hwan Cho ,  Dug-bong Kim ,  Sang-yun Yi ,  Tae-hyung Rhee

IPC分类号： G02F103

CPC分类号： G02F1/011

摘要： In an optical intensity modulator, and a fabrication method thereof, the optical intensity modulator includes a substrate made of a predetermined material, an arc shaped optical waveguide formed on the substrate, and an electrode formed on the optical waveguide such that the electrode is in alignment with the optical waveguide, the refractive index of the optical waveguide being changed in accordance with an intensity of an electric field applied to the electrode, and an optical wave passing a predetermined location of the optical waveguide being radiated into the substrate due to the changed refractive index. Accordingly, a large modulation depth can be obtained from only a small refractive index variation by using the radiation loss characteristics of the arc shaped waveguide.

摘要翻译： 在光强度调制器及其制造方法中，光强度调制器包括由预定材料制成的基板，形成在基板上的弧形光波导，以及形成在光波导上的电极，使得电极对准 利用光波导，光波导的折射率根据施加到电极的电场的强度而改变，并且通过光波导的预定位置的光波由于折射率的变化而被辐射到衬底中 指数。 因此，通过使用弧形波导的辐射损耗特性，可以仅从小的折射率变化获得大的调制深度。