PURPOSE: A grating coupler is provided to effectively transmit data and to reduce an optical loss. CONSTITUTION: A grating coupler(100) includes an optical waveguide(110) transmitting optical signals and a diffraction grid(120) formed on the upper part of the optical waveguide and containing protrusion parts(130) which are successively formed and have different heights.
申请公布号
KR20130058291(A)
申请公布日期
2013.06.04
申请号
KR20110124214
申请日期
2011.11.25
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE