| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
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| Outline of Final Research Achievements |
Optical devices for manipulating the spatial state of the light are investigated. Especially, silica-based optical devices for mode-division-multiplexed (MDM) transmission system are intensively investigated. Six-mode scrambling-type mode multiplexers with low insertion loss is proposed. For the compensation of mode dependent loss and differential group delay in the MDM system, 6-mode exchanger based on grating waveguide designed by wavefront matching (WFM) method is proposed and proof-of-concept device was successfully fabricated. Furthermore, the WFM method for the design of mode controlling devices containing waveguide discontinuities is newly developed, and ultrasmall WFM-designed Si waveguide mode exchanger was realized for the first time.
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