1. YONSEI UNIVERSITY YONSEI UNIVERSITY Simulation project - Arrayed Waveguide Gratings - 2015.12.15 김창훈

2. YONSEI UNIVERSITY 1. 2. 3.4. Contents 2 AWG structure & principle Simulation Summary WDM transmitter & receiver

3. 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

4. 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

5. YONSEI UNIVERSITY Simulation procedure 5 ① ② ③  Lumerical MODE solution

6. 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.

7. YONSEI UNIVERSITY Simulation result 7 ②

8. 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

9. 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