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    • 33. 发明授权
    • Optical module and optical module package
    • 光模块和光模块封装
    • US07553092B2
    • 2009-06-30
    • US11450743
    • 2006-06-08
    • Kwang Seong ChoiYong Duck ChungYoung Shik KangDong Suk JunJe Ha KimJong Tae Moon
    • Kwang Seong ChoiYong Duck ChungYoung Shik KangDong Suk JunJe Ha KimJong Tae Moon
    • G02B6/36
    • G02F1/0121G02B6/4201G02B6/4279H01L2224/48091H01L2924/3011H01L2924/00014H01L2924/00
    • Provided is an optical module used in a communication system employing a radio over fiber (ROF) technology delivering a radio frequency (RF) signal through an optical fiber. The optical module includes: an optical device; a signal line for transporting a radio frequency (RF) signal input from an external circuit to the optical device; and a resistor separately disposed from the signal line and having one end connected with the optical device, wherein the input impedance seen from the signal line is matched by the resistor. A bias voltage supplied to operate the optical device is applied through an inductor connected to the signal line between the optical device and a filter. Here, the filter formed by a pattern of the signal line prevents the bias voltage from being supplied to the external circuit. In order to amplify the RF signal input from the external circuit, an amplifier may be connected between the external circuit and the filter.
    • 提供了一种用于通过光纤传送射频(RF)信号的无线电光纤(ROF)技术的通信系统中的光学模块。 光学模块包括:光学装置; 用于将从外部电路输入的射频(RF)信号传送到光学装置的信号线; 以及与信号线分开设置并且具有与光学装置连接的一端的电阻,其中从信号线看到的输入阻抗由电阻器匹配。 提供用于操作光学器件的偏置电压通过连接到光学器件和滤光器之间的信号线的电感器施加。 这里,由信号线的图案形成的滤波器防止偏置电压被提供给外部电路。 为了放大从外部电路输入的RF信号,可以在外部电路和滤波器之间连接放大器。
    • 34. 发明授权
    • Enhanced coplanar waveguide and optical communication module using the same
    • 增强共面波导和光通信模块使用相同
    • US07331723B2
    • 2008-02-19
    • US11486493
    • 2006-07-14
    • Ho Gyeong YoonKwang Seong ChoiYong Hwan KwonJoong Seon Choe
    • Ho Gyeong YoonKwang Seong ChoiYong Hwan KwonJoong Seon Choe
    • G02B6/36H01P1/02
    • G02B6/4201G02B6/4279
    • Provided are an enhanced structure of a coplanar waveguide that is a kind of transmission line used for optical communication for radio frequency (RF), and an optical communication module employing the same. While having a basic structure including a conductive strip and ground strips at both sides of the conductive strip on a dielectric substrate, the coplanar waveguide has the structure in which metal patterns of a portion of the conductive strip located around points where an RF propagation direction is changed and of a portion of an inside ground strip are removed to make electrical lengths of an outside ground strip and the inside ground strip similar each other. Using the coplanar waveguide, it is possible to fabricate an optical module that has an optimized RF characteristic and also can freely change an RF propagation direction of several tens GHz, without an additional process.
    • 提供作为用于射频(RF)的光通信的一种传输线的共面波导的增强结构以及采用该共面波导的光通信模块。 虽然在电介质基板上具有在导电条的两侧的导电条和接地条的基本结构,但共面波导具有如下结构:导电条的一部分的金属图案位于射频传播方向为 去除内部接地条的一部分以使外部接地条和内部接地条的电长度彼此相似。 使用共面波导,可以制造具有优化的RF特性的光学模块,并且还可以自由地改变几十GHz的RF传播方向,而无需额外的处理。
    • 38. 发明申请
    • CORE AND OPTICAL WAVEGUIDE
    • 核心和光波导
    • US20130156362A1
    • 2013-06-20
    • US13611085
    • 2012-09-12
    • Duk Jun KIMJong-Hoi KimJoong-Seon ChoeChun Ju YounKwang-Seong ChoiYong-Hwan KwonEun Soo Nam
    • Duk Jun KIMJong-Hoi KimJoong-Seon ChoeChun Ju YounKwang-Seong ChoiYong-Hwan KwonEun Soo Nam
    • G02B6/26G02B6/00
    • G02B6/1228G02B6/126
    • Provided is a core which reduces optic splice loss between discontinuous optical waveguides. The core includes a first waveguide propagation portion having first light-receiving width, a first lightwave discontinuous portion having second light-receiving width, a first taper structure portion having both ends connected to the first lightwave propagation portion and to the first lightwave discontinuous portion, respectively and decreasing in light-receiving width as it goes from the first lightwave propagation portion to the first lightwave discontinuous portion, a second lightwave propagation portion having third light-receiving width, a second lightwave discontinuous portion having fourth light-receiving width, and a second taper structure portion having both ends connected to the second lightwave propagation portion and to the second lightwave discontinuous portion, respectively and decreasing in light-receiving width as it goes from the second lightwave propagation portion to the second lightwave discontinuous portion.
    • 提供了减少不连续光波导之间的光接头损耗的核心。 该芯包括具有第一光接收宽度的第一波导传播部分,具有第二光接收宽度的第一光波不连续部分,具有连接到第一光波传播部分的两端和第一光波不连续部分的第一锥形结构部分, 分别从第一光波传播部分到第一光波不连续部分的光接收宽度减小,具有第三受光宽度的第二光波传播部分,具有第四光接收宽度的第二光波不连续部分和 第二锥形结构部分,其两端分别连接到第二光波传播部分和第二光波不连续部分,并且随着从第二光波传播部分到第二光波不连续部分的光接收宽度的减小,第二锥形结构部分。