Presentation Information
[16a-PB3-1]Dispersion Engineered Stacking Tantalum Pentoxide Waveguide for Flattening SCG
〇(M1)TzuChi Yen1, De-Hao Yan1, Po-Hsun Lin1, Yuan-Yao Lin1, Yi-Jen Chiu1, Min-Hsiung Shih2, Chao-Kuei Lee1 (1.Dept. of Photonics, NSYSU, 2.RCAS, Academia Sinica)
Keywords:
Stacked waveguide,Dispersion engineering,Anomalous dispersion
In this work, we present a design for a three-layer stacked waveguide using Ta2O5 as the core material, primarily investigating the role of structural parameters in dispersion engineering to optimize the platform for supercontinuum (SC) generation. Through simulation analysis in the TM00 mode with a 1550 nm pump, we successfully identified an optimal structure that achieves a flattened dispersion profile characterized by four zero-dispersion wavelengths (ZDWs). We further demonstrated how this engineered dispersion profile significantly affects the resulting SC spectrum and analyzed the spectral evolution under high-power transmission, confirming that composite, stacked structures are highly effective for creating ultra-broadband, powerful on-chip light sources.