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公开(公告)号：KR1020060067187A
公开(公告)日：2006-06-19
申请号：KR1020040105699
申请日：2004-12-14
Applicant: 한국전자통신연구원
CPC classification number: G02F1/01708 , B82Y20/00 , G02B6/1228 , G02B6/136 , G02B2006/12128 , G02B2006/12176
Abstract: Provided is a double waveguide electroabsorption modulator, in which two spot size converters are integrated between first and second optical waveguides, thereby reducing an insertion loss between an optical fiber and an optical modulator while favorably operating even in high input optical power. Therefore, the electroabsorption modulator can stably operate in higher input optical power while reducing an optical coupling loss and an optical confinement factor (OCF).
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公开(公告)号：KR100471383B1
公开(公告)日：2005-03-10
申请号：KR1020020080112
申请日：2002-12-16
Applicant: 한국전자통신연구원
IPC: G02B6/14
CPC classification number: G02B6/1228
Abstract: 본 발명은 광모드 크기 변환기(spot size converter : SSC)를 집적한 광소자와 그 제작 방법에 관한 것으로, SSC 영역의 테이퍼 도파로를 형성할 때 선택적 습식 식각 방법을 사용해서 폭과 두께를 정확히 조절하며, 특히 테이퍼 도파로의 시작부분을 메사 구조 또는 역메사 구조로 형성한다. 이를 통하여 공정 변수를 재현성 있게 조절할 수 있도록 하고, 광정렬을 위한 비용을 절감하고 광결합 효율 및 양자효율을 크게 향상시킬 수 있는 효과가 있다.
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公开(公告)号：KR1020040052272A
公开(公告)日：2004-06-23
申请号：KR1020020080112
申请日：2002-12-16
Applicant: 한국전자통신연구원
IPC: G02B6/14
CPC classification number: G02B6/1228
Abstract: PURPOSE: A spot size converter, a fabricating method thereof, and a spot size converter IC are provided to enhance the optical coupling efficiency by coupling easily an optical fiber to an optical detection device. CONSTITUTION: A spot size converter includes a semiconductor substrate, a first waveguide, and a second waveguide. The first waveguide(32) is laminated on the semiconductor substrate(31) in order to form a shape of ridge. The first waveguide is coupled to an optical fiber. The second waveguide(33) is formed on the first waveguide. The second waveguide has a tapering structure. The width of the second waveguide is increased to the second waveguide. A starting part of the second waveguide is formed with a mesa structure or an inverse mesa structure.
Abstract translation: 目的：提供光斑尺寸转换器，其制造方法和光点尺寸转换器IC，以通过将光纤容易地耦合到光学检测装置来提高光耦合效率。 构成：点尺寸转换器包括半导体衬底，第一波导和第二波导。 第一波导（32）层叠在半导体基板（31）上，以形成脊状。 第一波导耦合到光纤。 第二波导（33）形成在第一波导上。 第二波导具有锥形结构。 第二波导的宽度增加到第二波导。 第二波导的起始部分形成有台面结构或逆台面结构。
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