Abstract
We report a supercontinuum generation (SCG) in a waveguide that spontaneously forms without an etching process during the deposition of a core material on a preformed ${\rm{Si}}{{\rm{O}}_2}$ substructure. The mechanism of dispersion control for this new, to the best of our knowledge, type of waveguide is analyzed by numerical simulation, which results in a design rule to achieve a target dispersion profile by adjusting the substructure geometry. SCG is experimentally demonstrated with a waveguide made of ${\rm{A}}{{\rm{s}}_2}{{\rm{S}}_3}$, chalcogenide glass, which has low material absorption over the mid-IR range. A dispersion-controlled waveguide with a length of 10 mm pumped with 77 pJ pulses at a telecommunication wavelength of 1560 nm resulted in a supercontinuum that extends by more than 1.5 octaves.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Ranran Fan, Chung-Lun Wu, Yuan-Yao Lin, Chin-Yu Liu, Pin-Shuo Hwang, Chao-Wei Liu, Junpeng Qiao, Min-Hsiung Shih, Yung-Jr Hung, Yi-Jen Chiu, Ann-Kuo Chu, and Chao-Kuei Lee
Opt. Lett. 44(6) 1512-1515 (2019)
Amirhassan Shams-Ansari, Pawel Latawiec, Yoshitomo Okawachi, Vivek Venkataraman, Mengjie Yu, Boris Desiatov, Haig Atikian, Gary L. Harris, Nathalie Picqué, Alexander L. Gaeta, and Marko Lončar
Opt. Lett. 44(16) 4056-4059 (2019)
Hamidu M. Mbonde, Neetesh Singh, Bruno L. Segat Frare, Milan Sinobad, Pooya Torab Ahmadi, Batoul Hashemi, Dawson B. Bonneville, Peter Mascher, Franz X. Kärtner, and Jonathan D. B. Bradley
Opt. Lett. 49(10) 2725-2728 (2024)