发明授权
US07580336B2 Optical head having a beam input/output coupler on a planar waveguide
有权
光头在平面波导上具有光束输入/输出耦合器
- 专利标题: Optical head having a beam input/output coupler on a planar waveguide
- 专利标题(中): 光头在平面波导上具有光束输入/输出耦合器
-
申请号: US11270998申请日: 2005-11-10
-
公开(公告)号: US07580336B2公开(公告)日: 2009-08-25
- 发明人: Dong Woo Suh , Yong Woo Park , Mun Cheol Paek , Ho Jun Ryu , Hee Sook Chung , Kwang Yong Kang
- 申请人: Dong Woo Suh , Yong Woo Park , Mun Cheol Paek , Ho Jun Ryu , Hee Sook Chung , Kwang Yong Kang
- 申请人地址: KR Daejeon
- 专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人地址: KR Daejeon
- 代理机构: Ladas & Parry LLP
- 优先权: KR10-2004-0103073 20041208; KR10-2005-0053053 20050620
- 主分类号: G11B7/135
- IPC分类号: G11B7/135
摘要:
An optical head has a beam input/output coupler on a planar waveguide and other parts including: a light transmitting element emitting a beam; a planar waveguide formed on a substrate and receiving the beam oscillated from the light transmitting element; a beam input/output coupler integrated as a thin film on a portion of the planar waveguide and receiving the beam through the planar waveguide to transmit the beam vertically toward a disc positioned above the planar waveguide or transmitting the beam reflected from the disc through the planar waveguide; and light receiving elements receiving the beam propagated to the planar waveguide through the beam input/output coupler.