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    • 1. 发明授权
    • Method of fabricating thermooptic tunable wavelength filter
    • 制作热光可调谐波长滤光片的方法
    • US06303040B1
    • 2001-10-16
    • US09389459
    • 1999-09-03
    • Min Cheol OhMyung Hyun LeeHyung Jong LeeJoo Heon AhnSeon Gyu HanHae Geun Kim
    • Min Cheol OhMyung Hyun LeeHyung Jong LeeJoo Heon AhnSeon Gyu HanHae Geun Kim
    • B44C122
    • G02F1/065G02F1/0147G02F2201/307
    • A method of fabricating a thermooptic tunable wavelength filter of optical communication systems using WDM is provided, which includes the steps of forming a polymer optical waveguide on a semiconductor substrate using a polymer material, forming a polymer Bragg grating on the optical waveguide using O2 RIE and polymer spin coating, and forming a thermooptic tuning electrode over the polymer optical waveguide in which the Bragg grating is integrated. This provides the thermooptical tunable wavelength filter which has very narrow wavelength band width of transmission signal, low crosstalk with optical signals adjacent thereto, stable wavelength tuning characteristic using thermooptic effect and wide tuning ranges. Furthermore, the optical devices using the polymer optical waveguide can be fabricated with low cost. Thus, they have advantages in terms of economy and marketability.
    • 提供了一种制造使用WDM的光通信系统的光波可调波长滤波器的方法,其包括以下步骤:使用聚合物材料在半导体衬底上形成聚合物光波导,使用O 2 RIE在光波导上形成聚合物布拉格光栅; 聚合物旋涂,并在其上集成布拉格光栅的聚合物光波导上形成热光调谐电极。 这提供了光学可调波长滤波器,其具有非常窄的传输信号的波长带宽,与其相邻的光信号的低串扰,使用热光效应和宽调谐范围的稳定的波长调谐特性。 此外,可以以低成本制造使用聚合物光波导的光学装置。 因此,它们在经济和市场化方面具有优势。
    • 2. 发明授权
    • Optical switch for reducing processing errors in a coupling region
    • 用于减少耦合区域中处理误差的光开关
    • US5828796A
    • 1998-10-27
    • US747766
    • 1996-11-13
    • Seon Gyu HanHye Young KimMyung Hyun LeeHyung Jong LeeYong Hyub Won
    • Seon Gyu HanHye Young KimMyung Hyun LeeHyung Jong LeeYong Hyub Won
    • G02B6/35G02B6/12G02B6/125G02F1/313G02B6/26
    • G02F1/3136G02B6/125G02B2006/12145G02B2006/12147G02B2006/12159
    • An optical switch having reduced processing errors in a coupling region, according to the claimed invention includes an input portion having a pair of optical waveguides; an output portion having a pair of optical waveguides; a light phase shifting portion for inducing an additional phase change on light travelling in the input portion; a first light coupling waveguide for coupling between two light signals of the input portion and for providing a coupled signal with the light phase shifting portion; and a second light coupling waveguide for coupled between two light signals of the light phase shifting means and for providing a coupled signal with the output portion. The light coupling unit includes a waveguide. The switch reduces considerably any error that stems from manufacturing variations between waveguides in a coupling region since the waveguides share the error produced in a coupling region. The length of the switching element can be reduced since the coupled between waveguides is not indirect as in DC switches and BB switches. Due to the reduction in length, the output loss is reduced considerable.
    • 根据要求保护的发明,在耦合区域中具有减小的处理误差的光开关包括具有一对光波导的输入部分; 具有一对光波导的输出部; 光相移部分,用于在输入部分中行进的光线上引起附加的相位变化; 第一光耦合波导,用于耦合所述输入部分的两个光信号,并用于与所述光相移部分提供耦合信号; 以及第二光耦合波导,用于耦合在所述光相移装置的两个光信号之间,并用于与所述输出部分提供耦合信号。 光耦合单元包括波导。 由于波导共享在耦合区域中产生的误差,所以该开关显着地减少了由耦合区域中的波导之间的制造变化引起的任何误差。 开关元件的长度可以减小,因为在DC开关和BB开关中,波导之间的耦合不是间接的。 由于长度的减小,输出损耗相当可观。