| 摘要 |
PROBLEM TO BE SOLVED: To provide a light emitting device which can control a polarization direction, an apparatus for communication using the same and an optical communication system. SOLUTION: The light emitting device 1000 includes a substrate 10, a light emitting section 50 which generates light in a direction crossing the substrate 10, and a slab layer 30 which is arranged in a position facing the light emitting section 50. The slab layer 30 has a two-dimensional photonic crystal structure with low-refractive regions 300 periodically arrayed and includes linear defects 200 which are formed in the two-dimensional photonic crystal structure and function as waveguides and dotwise defects 100 which are formed in the two-dimensional photonic crystal structure and function as waveguides, capture the light generated in the light emitting section 50 and guide this light to the linear defects 200. The dotwise defects 100 are arranged in the position where the dotwise defects can capture the light generated from the light emitting section 50. COPYRIGHT: (C)2004,JPO |
