We developed a chip-based silicon nitride platform with thick waveguides (> 2 mm) that overcomes the usual fabrication limitation. We demonstrate both microresonator frequency comb generation at 2:5 mm and supercontinuum generation extending beyond 4:0 mm in this platform.
Camille Sophie Brès, Marco Clementi, Jiaye Wu, Qian Li
Camille Sophie Brès, Anton Stroganov, Boris Zabelich, Christian André Clément Lafforgue, Edgars Nitiss