Optical head having a beam input/output coupler on a planar waveguide
摘要
<p>An optical head has a beam input/output coupler on a planar waveguide ane 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.</p>
申请公布号
EP1669987(A2)
申请公布日期
2006.06.14
申请号
EP20050257138
申请日期
2005.11.21
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人
SUH, DONG WOO;PARK, YONG WOO;PAEK, MUN CHEOL;RYU, HO JUN;CHUNG, HEE SOOK;KANG, KWANG YONG