| 摘要 |
PROBLEM TO BE SOLVED: To provide a wavelength multiplexer/demultiplexer capable of obtaining multiplexed/demultiplexed spectrum of a flat top shape. SOLUTION: Two or more resonators 13, 14 having substantially the same resonance frequency are provided between two light output/introduction parts (waveguides) 11, 12. A coupling adjustment defect 15, 16a, or 16b not resonating with the light at the resonance frequency of the resonators 13, 14 is provided between both the resonators 13, 14, between the light output/introduction part 11 and the resonator 13, or between the light output/introduction part 12 and the resonator 14. By adjusting the form (the number, the dimension, and so forth) of these coupling adjustment defects, the mutual coupling coefficient between both the resonators 13, 14, between the light output/introduction part 11 and the resonator 13, or between the light output/introduction part 12 and the resonator 14 is controlled, and the multiplexed/demultiplexed spectrum of the flat top shape can be obtained. COPYRIGHT: (C)2007,JPO&INPIT |
