发明名称 |
VARIABLE OPTICAL ATTENUATOR USING DIRECTIONAL COUPLER TYPE OPTICAL WAVEGUIDE AND FABRICATING METHOD THEREOF |
摘要 |
PURPOSE: A variable optical attenuator using a directional coupler type optical waveguide and a fabricating method thereof are provided to control accurately a characteristic of optical attenuation by using a principle of a bidirectional coupler. CONSTITUTION: A variable optical attenuator using a directional coupler type optical waveguide includes a main optical waveguide(107), a variable optical waveguide(107'), and a comb actuator(114). The main optical waveguide(107) and the variable optical waveguide(107') are installed in a constant interval. The interval between the main optical waveguide(107) and the variable optical waveguide(107') is controlled by using the comb actuator(114) to attenuate the light through the main optical waveguide(107).
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申请公布号 |
KR20040026440(A) |
申请公布日期 |
2004.03.31 |
申请号 |
KR20020057909 |
申请日期 |
2002.09.24 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
CHOI, JEONG HUN;LEE, YEONG JU;OH, HYEON HO |
分类号 |
G02B6/12;(IPC1-7):G02B6/12 |
主分类号 |
G02B6/12 |
代理机构 |
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