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11. 发明授权

US06303743B1 Polyimide for optical communications, method of preparing the same, and method of forming multiple polyimide film using the polyimide 失效
标题翻译：用于光通信的聚酰亚胺，其制备方法以及使用该聚酰亚胺形成多个聚酰亚胺膜的方法
公开(公告)号：US06303743B1
公开(公告)日：2001-10-16
申请号：US09441888
申请日：1999-11-17
申请人： Kyung-hee You , Kwan-soo Han , Tae-hyung Rhee
发明人： Kyung-hee You , Kwan-soo Han , Tae-hyung Rhee
IPC分类号： C05G7310
CPC分类号： C08G73/1039 , C08G73/1014 , G02B1/045 , C08L79/08
摘要： A polyimide for optical communications, which is expressed by the formula (1), a method of preparing the same, and a method of forming multiple polyimide films using the polyimide, wherein the formula (1) is given by X1, X2, X3, A1, A2, B1, B2, B3, D1, D2, E1, E2, Y1, Y2, Y3, Y4, Y5, Y6, Y7, and Y8, are independently selected from the group consisting of hydrogen atom, halogen atom, alkyl group, halogenated alkyl group, aryl group and halogenated aryl group; Z is a simple chemical bond or selected from the group consisting of —O—, —CO—, —SO3—, —S—, —(T)m—, —(OT)m— and —(OTO)m—, wherein T is alkylene or arylene group substituted by at least one of halogen atom and halogenated alkyl group and m is an integer from 1 to 10; and n is an integer from 1 to 39. Because the polyimide expressed by the formula (1) has a lower birefringence than a common polyimide used as a material for optical waveguiding, a problem associated with the dependency of optical characteristics on polarization can be solved. Also, the solubility of the polyimide in an organic solvent is lowered, so that the occurrence of cracks in a polyimide layer can be avoided in the case of forming multiple polyimide films.
摘要翻译：一种用于光通信的聚酰亚胺，其由式（1）表示，其制备方法和使用该聚酰亚胺形成多个聚酰亚胺膜的方法，其中式（1）由X 1，X 2，X 3，A 1给出，A2，B1，B2，B3，D1，D2，E1，E2，Y1，Y2，Y3，Y4，Y5，Y6，Y7和Y8独立地选自氢原子，卤素原子，烷基卤代烷基，芳基和卤代芳基; Z是简单的化学键或选自-O - ， - CO - ， - SO 3 - ， - S-， - （T）m - ， - （OT）m-和 - （OTO）其中T是被卤素原子和卤代烷基中的至少一个取代的亚烷基或亚芳基，m是1至10的整数; n是1〜39的整数。由于式（1）表示的聚酰亚胺具有比用作光波导材料的普通聚酰亚胺更低的双折射率，所以可以解决光学特性对极化的依赖性的问题。此外，聚酰亚胺在有机溶剂中的溶解度降低，从而在形成多个聚酰亚胺膜的情况下可以避免在聚酰亚胺层中出现裂纹。

12. 发明授权

US6031061A Bis (triaklyltrimellitic anhydride) derivative and polyesterimide for optical communications formed therefrom 有权
标题翻译：双（三烯丙基苯三酸酐）衍生物和由其形成的光通讯用聚酯酰亚胺
公开(公告)号：US6031061A
公开(公告)日：2000-02-29
申请号：US223568
申请日：1998-12-31
申请人： Dong-hack Suh , Sun-young Chung , Tae-hyung Rhee
发明人： Dong-hack Suh , Sun-young Chung , Tae-hyung Rhee
IPC分类号： G02B6/00 , C07D307/83 , C07D307/89 , C08G73/12 , C08G73/16 , C08L79/08 , C07C51/00 , C07C63/00 , C07D307/77
CPC分类号： C08G73/124 , C07D307/89 , C08G73/123
摘要： A bis(trisubstitutedtrimellitic anhydride) derivative and a polyesterimide for optical communications, the polyesterimide being formed therefrom. The polyesterimide has a high refractive index, so that when using such polyesterimide as a material for a core of an optical fiber, the range of materials that can be selected for the cladding becomes wide. Also, a coating property and adhesion to a substrate are improved, thereby providing a good film forming property and thermal stability. Also, because the polyesterimide can minimize optical loss at a near infrared wavelength range, the polyesterimide is very useful as an optical material in the optical communications field adopting the light of near infrared wavelength.
摘要翻译：一种双（三取代的偏苯三酸酐）衍生物和用于光通信的聚酯酰亚胺，由此形成聚酯酰亚胺。聚酯酰亚胺具有高折射率，因此当使用这种聚酯酰亚胺作为光纤芯的材料时，可以选择用于包层的材料的范围变宽。此外，改善了涂布性能和对基材的粘合性，从而提供良好的成膜性和热稳定性。此外，由于聚酯酰亚胺可以使近红外波长范围的光损耗最小化，所以聚酯酰亚胺作为采用近红外波长光的光通信领域的光学材料是非常有用的。

13. 发明授权

US06282343B1 Optical coupler and method of manufacturing the same 失效
标题翻译：光耦合器及其制造方法
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。

14. 发明授权

US6157759A Optical fiber passive alignment apparatus and method therefor 失效
标题翻译：光纤无源对准装置及其方法
公开(公告)号：US6157759A
公开(公告)日：2000-12-05
申请号：US106840
申请日：1998-06-30
申请人： Phil-seung Seo , Hyung-jae Lee , Tae-hyung Rhee , Hyoun-soo Kim , Sang-yun Yi
发明人： Phil-seung Seo , Hyung-jae Lee , Tae-hyung Rhee , Hyoun-soo Kim , Sang-yun Yi
IPC分类号： G02B6/24 , G02B6/30
CPC分类号： G02B6/30 , G02B6/305
摘要： An optical fiber passive alignment apparatus for passively aligning an optical fiber with an input/output optical waveguide of an integrated optical device, and a method therefor. The optical fiber passive alignment apparatus includes: an optical waveguide formed on a planar substrate along the longitudinal direction of the planar substrate, having a core which is shorter than the planar substrate; an optical fiber mounting portion formed to a predetermined length on the planar substrate in the longitudinal direction of the planar substrate, such that the optical waveguide and the optical fiber contact each other, for receiving the optical fiber; and a cavity located between the optical fiber mounting portion and a core of the optical waveguide, filled with a material whose refractive index slightly increases on irradiation by UV rays such that the refractive index of the material is not substantially different from the refractive index of a core of the optical fiber. Therefore, forming the optical waveguide whose core flares gradually reduces dependency of coupling loss on horizontal displacement, and importance of precisely positioning the optical fiber is decreased.
摘要翻译：一种用于将光纤与集成光学装置的输入/输出光波导无源对准的光纤无源对准装置及其方法。光纤无源定位装置包括：沿着平面基板的纵向形成在平面基板上的光波导，其具有比平面基板短的芯; 在所述平面基板上在所述平面基板的长度方向上形成规定长度的光纤安装部，使得所述光波导和所述光纤彼此接触，用于接收所述光纤; 以及位于光纤安装部分和光波导芯之间的空腔，其填充有折射率随着紫外线的照射而稍微增加的材料，使得材料的折射率基本上不同于光纤的核心。因此，形成光纤的光波导逐渐减小耦合损耗对水平位移的依赖性，光纤的精确定位的重要性降低。

15. 发明授权

US6028159A Polyamideimide for optical communications and method for preparing the same 有权
标题翻译：用于光通信的聚酰胺酰胺及其制备方法
公开(公告)号：US6028159A
公开(公告)日：2000-02-22
申请号：US223728
申请日：1998-12-31
申请人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
发明人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
IPC分类号： G02B6/00 , C08G73/14
CPC分类号： C08G73/14 , G02B6/02033
摘要： A polyamideimide for optical communications, having a minimum light absorption loss in a near infrared light wavelength range, high thermal stability and excellent film processibility, and a method for preparing the same are provided. The polyamideimide has a higher refractive index than the conventional fluorinated polyamideimide. Thus, when using such polyamideimide as a material for a core of an optical fiber, the selection range on the material for cladding becomes wide. Also the coating property and adhesiveness to a substrate are improved, thereby providing a good film processibility and heat resistance.
摘要翻译：提供了一种用于光通信的聚酰胺酰亚胺，其具有近红外光波长范围内的最小光吸收损失，高热稳定性和优异的膜加工性，及其制备方法。聚酰胺酰亚胺具有比常规氟化聚酰胺酰亚胺更高的折射率。因此，当使用这种聚酰胺酰亚胺作为光纤芯的材料时，包覆材料的选择范围变宽。此外，改善了对基材的涂布性和粘合性，从而提供良好的膜加工性和耐热性。

16. 发明授权

US06442315B1 Optical waveguide chip and method of formation thereof 有权
标题翻译：光波导芯片及其形成方法
公开(公告)号：US06442315B1
公开(公告)日：2002-08-27
申请号：US09195660
申请日：1998-11-18
申请人： Tae-hyung Rhee , Hyung-jae Lee , Sang-yun Yi , Byong-gwon You
发明人： Tae-hyung Rhee , Hyung-jae Lee , Sang-yun Yi , Byong-gwon You
IPC分类号： G02B626
CPC分类号： G02B6/305 , G02B2006/12195
摘要： An optical waveguide chip includes an output waveguide connected to an optical fiber, an optical fiber array module, or another optical waveguide chip. The output waveguide has a coupling cross-section wider than the core of the optical fiber, the core of an optical fiber of the optical fiber array module, and the waveguide of the other optical waveguide, respectively. The cross-section width of the output waveguide of the optical waveguide chip gradually increases toward an end of the waveguide with a slant angle of 10° or less. Therefore, when the optical waveguide chip is connected to the optical fiber, the optical fiber array module, or the other optical waveguide chip during packaging of an optical waveguide device, an offset of the optical axis of about ±20% of the width of the waveguide guide is allowable. As a result, there are no additional or extra steps in fabrication of an optical waveguide chip and no additional loss of the optical characteristics, and the required interconnection or production time is considerably reduced.
摘要翻译：光波导芯片包括连接到光纤的输出波导，光纤阵列模块或另一光波导芯片。输出波导具有比光纤的核心更宽的光耦合横截面，光纤阵列模块的光纤的核心和另一个光波导的波导。光波导芯片的输出波导的横截面宽度以10°或更小的倾斜角朝向波导的端部逐渐增加。因此，当光波导芯片在光波导器件的封装期间连接到光纤，光纤阵列模块或另一个光波导芯片时，光轴的偏移约为± 波导引导是允许的。结果，在光波导芯片的制造中没有额外的或额外的步骤，并且没有额外的光学特性损失，并且所需的互连或生产时间大大降低。

17. 发明授权

US6013759A Polyamideimide for optical communications and method for preparing the same 有权
标题翻译：用于光通信的聚酰胺酰胺及其制备方法
公开(公告)号：US6013759A
公开(公告)日：2000-01-11
申请号：US206230
申请日：1998-12-07
申请人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
发明人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
IPC分类号： G02B6/12 , C08G73/14 , G02B6/00 , C08G69/26
CPC分类号： C08G73/14
摘要： A polyamideimide for optical communications, having a minimum optical loss in a near infrared light wavelength range, high thermal resistance and good film processibility, and a method for preparing the same are provided. The polyamideimide is very useful as an optical material in the optical communications field adopting the light of near infrared light wavelength.
摘要翻译：提供了一种用于光通信的聚酰胺酰亚胺，其具有近红外光波长范围内的最小光损耗，高热阻和良好的膜加工性及其制备方法。聚酰胺酰亚胺在采用近红外光波长的光的通信领域中作为光学材料是非常有用的。

18. 发明授权

US06268949B1 Optical intensity modulator and fabrication method using an optical waveguide having an arc shaped path 失效
标题翻译：光强度调制器和使用具有弧形路径的光波导的制造方法
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。

19. 发明授权

US6122423A Pigtailing method between optical waveguide device and optical fiber array 有权
标题翻译：光波导器件与光纤阵列之间的剔除方法
公开(公告)号：US6122423A
公开(公告)日：2000-09-19
申请号：US206248
申请日：1998-12-07
申请人： Byong-gwon You , Tae-hyung Rhee , Hyung-jae Lee
发明人： Byong-gwon You , Tae-hyung Rhee , Hyung-jae Lee
IPC分类号： G02B6/122 , G02B6/30
CPC分类号： G02B6/30
摘要： The present invention includes a pigtailing method between an optical waveguide device and an optical fiber array module, comprising the steps of preparing the optical waveguide device having optical waveguides of n1 input ports and n2 output ports on the lateral surface of a substrate, wherein n1 and n2 are integers equal to or greater than 1, aligning the optical fiber array module having optical fibers arranged at equal distances between the input ports and between the output ports, to the input and output ports of the optical waveguide device, and attaching the aligned optical fiber array module to the lateral surface of the optical waveguide device. Since only one attachment process of the optical fiber array module to the optical waveguide device is required, the fabrication cost can be reduced.
摘要翻译：本发明包括一种光波导器件和光纤阵列模块之间的尾纤方法，其特征在于包括以下步骤：在衬底的侧表面上准备具有n1个输入端口和n2个输出端口的光波导的光波导器件，其中n1和 n2是等于或大于1的整数，将具有布置在输入端口之间和输出端口之间的相等距离的光纤的光纤阵列模块对准到光波导器件的输入和输出端口，并且将对准的光学器件光纤阵列模块到光波导器件的侧表面。由于仅需要光纤阵列模块到光波导装置的一个连接处理，所以可以降低制造成本。

20. 发明授权

US6077928A Bis(dialkylmaleimide) derivative and polyetherimide for optical communications formed therefrom 失效
标题翻译：双（二烷基马来酰亚胺）衍生物和由其形成的用于光通信的聚醚酰亚胺
公开(公告)号：US6077928A
公开(公告)日：2000-06-20
申请号：US223313
申请日：1998-12-30
申请人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
发明人： Dong-hack Suh , Eun-young Chung , Tae-hyung Rhee
IPC分类号： C07D207/44 , C07D207/444 , C07D207/452 , C07D207/456 , C08G73/10 , C08G73/12 , C08L79/08 , G02B1/04 , G02B6/00 , G02B6/12
CPC分类号： C07D207/452 , C07D207/444 , C07D207/456 , C08G73/123 , C08G73/126 , G02B1/046 , G02B2006/12069 , G02B6/02033
摘要： A bis(disubstitutedmaleimide) derivative and a polyetherimide for optical communications and the polyetherimide formed therefrom are described. The polyetherimde has a high refractive index, so that when using such polyetherimide as a material for a core of an optical fiber, the range of the materials that can be selected for the cladding becomes wide. Also, a coating property and adhesion to a substrate are improved, thereby providing a good film forming property and thermal stability. Also, because the polyetherimide can minimize optical loss at a near infrared wavelength range, the polyetherimide is very useful as an optical material in the optical communications field adopting the light of near infrared wavelength.
摘要翻译：描述了双（二取代的马来酰亚胺）衍生物和用于光学通信的聚醚酰亚胺和由其形成的聚醚酰亚胺。聚醚酰亚胺具有高折射率，因此当使用这种聚醚酰亚胺作为光纤芯的材料时，可以选择用于包层的材料的范围变宽。此外，改善了涂布性能和对基材的粘合性，从而提供良好的成膜性和热稳定性。此外，由于聚醚酰亚胺可以使近红外波长范围的光损耗最小化，所以聚醚酰亚胺作为采用近红外波长光的光通信领域的光学材料是非常有用的。

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