| 摘要 |
<p>A coupling element includes a first stage (30) having a dielectric waveguide (14) that is transitioned to a waveguide having a sequence of resonators (16, 34, 36) with a fixed period. A second stage (32) transitions the coupled cavity waveguide (26) to a photonic crystal waveguide (20) by gradually bringing closer at an angle (24.40) the cladding bulk of the photonic crystal (22, 38) to the waveguide. When the first (30) and second (32) stages are combined, they can form an efficient coupling mechanism (3) into linear photonic crystal waveguide (35).</p> |
