TY - JOUR
T1 - Conditions for walk-off soliton generation in a multimode fiber
AU - Zitelli, Mario
AU - Mangini, Fabio
AU - Ferraro, Mario
AU - Sidelnikov, Oleg
AU - Wabnitz, Stefan
N1 - Funding Information:
We wish to thank Dr Cristiana Angelista for her valuable help in narrative restyling of this paper. We acknowledge the financial support from the European Research Council Advanced Grants Nos. 874596 and 740355 (STEMS), the Italian Ministry of University and Research (R18SPB8227), and the Russian Ministry of Science and Education Grant No. 14.Y26.31.0017.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - It has been recently demonstrated that multimode solitons are unstable objects which evolve, in the range of hundreds of nonlinearity lengths, into stable single-mode solitons carried by the fundamental mode. We show experimentally and by numerical simulations that femtosecond multimode solitons composed by non-degenerate modes have unique properties: when propagating in graded-index fibers, their pulsewidth and energy do not depend on the input pulsewidth, but only on input coupling conditions and linear dispersive properties of the fiber, hence on their wavelength. Because of these properties, spatiotemporal solitons composed by non-degenerate modes with pulsewidths longer than a few hundreds of femtoseconds cannot be generated in graded-index fibers.
AB - It has been recently demonstrated that multimode solitons are unstable objects which evolve, in the range of hundreds of nonlinearity lengths, into stable single-mode solitons carried by the fundamental mode. We show experimentally and by numerical simulations that femtosecond multimode solitons composed by non-degenerate modes have unique properties: when propagating in graded-index fibers, their pulsewidth and energy do not depend on the input pulsewidth, but only on input coupling conditions and linear dispersive properties of the fiber, hence on their wavelength. Because of these properties, spatiotemporal solitons composed by non-degenerate modes with pulsewidths longer than a few hundreds of femtoseconds cannot be generated in graded-index fibers.
UR - http://www.scopus.com/inward/record.url?scp=85112680814&partnerID=8YFLogxK
U2 - 10.1038/s42005-021-00687-0
DO - 10.1038/s42005-021-00687-0
M3 - Article
AN - SCOPUS:85112680814
VL - 4
JO - Communications Physics
JF - Communications Physics
SN - 2399-3650
IS - 1
M1 - 182
ER -