Abstract

Based on the interplay between photoionization and Raman effects in gas-filled photonic crystal fibers, we propose a new optical device to control frequency conversion of ultrashort pulses. By tuning the input-pulse energy, the output spectrum can be either down-converted, up-converted, or even frequency-shift compensated. For low input energies, the Raman effect is dominant and leads to a redshift that increases linearly during propagation. For larger pulse energies, photoionization starts to take over the frequency-conversion process and induces a strong blueshift. The fiber-output pressure can be used as an additional degree of freedom to control the spectrum shift.

© 2015 Optical Society of America

Band-edge mediated frequency down-conversion in a gas-filled anti-resonant hollow-core fiber

Trivikramarao Gavara, Md Imran Hasan, Muhammad Rosdi Abu Hassan, Ang Deng, and Wonkeun Chang
Opt. Lett. 45(24) 6815-6818 (2020)

Strong Raman-induced noninstantaneous soliton interactions in gas-filled photonic crystal fibers

Mohammed F. Saleh, Andrea Armaroli, Andrea Marini, and Fabio Biancalana
Opt. Lett. 40(17) 4058-4061 (2015)

Ionization-induced adiabatic soliton compression in gas-filled hollow-core photonic crystal fibers

Z. Y. Huang, Y. F. Chen, F. Yu, D. K. Wu, Y. Zhao, D. Wang, and Y. X. Leng
Opt. Lett. 44(22) 5562-5565 (2019)

Generation and characterization of frequency tunable sub-15-fs pulses in a gas-filled hollow-core fiber pumped by a Yb:KGW laser

Mohammed Sabbah, Federico Belli, Christian Brahms, Fei Yu, Jonathan Knight, and John C. Travers
Opt. Lett. 48(9) 2277-2280 (2023)

Ultra-broadband supercontinuum generation in gas-filled photonic-crystal fibers: the epsilon-near-zero regime

Mohammed F. Saleh and Fabio Biancalana
Opt. Lett. 46(8) 1959-1962 (2021)