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YONSEI UNIVERSITY YONSEI UNIVERSITY Simulation project - Arrayed Waveguide Gratings - 2015.12.15 김창훈
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YONSEI UNIVERSITY 1. 2. 3.4. Contents 2 AWG structure & principle Simulation Summary WDM transmitter & receiver
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YONSEI UNIVERSITY WDM transmitter : AWG(arrayed waveguide gratings) + Modulators WDM receiver : AWG + PDs WDM transmitter & receiver 3 SiN AWG Mux Fiber couplers Modulators array waveguides
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YONSEI UNIVERSITY AWG structure AWG structure & principle 4 ① Waveguides ② Free propagation region ③ Grating array waveguides ④ Free propagation region ⑤ Waveguides λ 1, λ 2, λ 3, λ 4 ① ③ ⑤ λ1λ2λ3λ4λ1λ2λ3λ4 ② ④ Grating equation
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YONSEI UNIVERSITY Simulation procedure 5 ① ② ③ Lumerical MODE solution
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YONSEI UNIVERSITY Simulation result 6 ① Input free propagation region – Si 3 N 4 (core), SiO 2 (cladding) Optical input wavelength: 1.55 μm Linewidth: 10 THz 1100 μm (y-axis) 500 μm 380 μm 470 μm a. c. b. a. b. c.
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YONSEI UNIVERSITY Simulation result 7 ②
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YONSEI UNIVERSITY Simulation result 8 Output free propagation region Optical input wavelength: 1.2 ~ 1.9 μm, 20 points Apply different time delays to each input source
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YONSEI UNIVERSITY Summary 9 AWG(arrayed waveguide gratings) Optical passive component Used for optical Mux and DeMux in WDM system Consists of two free propagation regions and grating array waveguides Partial demonstration of an AWG as a proof of concept
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