Abstract

Coherent and flat supercontinuum (SC) sources are demanded for applications of metrology, spectroscopy, and bio-imaging. However, the process of SC generation is usually very complicated. We demonstrated a convenient and efficient method based on a genetic algorithm (GA). According to an objective spectrum, this algorithm could reverse-design the geometry of a fiber or waveguide without knowing the specific non-linear processes involved. Using this method, we designed a dispersion-managed photonic crystal fiber (PCF) for SC generation at 1 GHz comb spacing. With an input pulse of ∼150 fs, 450 pJ at 1050 nm, a 3 dB fluctuation spectrum ranging from 510 nm to 850 nm is obtained, which is absolutely fit to the calibration of an astronomical spectrograph.

© 2023 Optica Publishing Group

Tailored supercontinuum generation using genetic algorithm optimized Fourier domain pulse shaping

Mathilde Hary, Lauri Salmela, Piotr Ryczkowski, Francesca Gallazzi, John M. Dudley, and Goëry Genty
Opt. Lett. 48(17) 4512-4515 (2023)

High-power supercontinuum lasers with a flat blue spectrum through pump modulation: a numerical study

Rasmus Eilkaer Hansen, Asbjørn Meldgaard Moltke, and Ole Bang
Opt. Lett. 48(7) 1574-1577 (2023)

Micro-joule level visible supercontinuum generation in seven-core photonic crystal fibers pumped by a 515  nm laser

Wanjun Bi, Yinyao Liu, Xia Li, Meisong Liao, Lili Hu, Wenqi Ge, Fei He, Pei-wen Kuan, Fei Yu, Tianxing Wang, Longfei Wang, and Weiqing Gao
Opt. Lett. 44(20) 5041-5044 (2019)

High-power visible-enhanced all-fiber supercontinuum generation in a seven-core photonic crystal fiber pumped at 1016  nm

Xue Qi, Shengping Chen, Zhihong Li, Tong Liu, Yang Ou, Nan Wang, and Jing Hou
Opt. Lett. 43(5) 1019-1022 (2018)

Visible blue-to-red 10  GHz frequency comb via on-chip triple-sum-frequency generation

Ewelina Obrzud, Victor Brasch, Thibault Voumard, Anton Stroganov, Michael Geiselmann, François Wildi, Francesco Pepe, Steve Lecomte, and Tobias Herr
Opt. Lett. 44(21) 5290-5293 (2019)