TY - JOUR
T1 - Generation of tightly compressed solitons with a tunable frequency shift in Raman-free fibers
AU - Driben, Rodislav
AU - Malomed, Boris A.
PY - 2013/9/15
Y1 - 2013/9/15
N2 - Optimization of the compression of input N-solitons into robust ultra-narrow fundamental solitons, with a tunable up- or downshifted frequency, is proposed in photonic crystal fibers free of the Raman effect. Due to the absence of the Raman self-frequency shift, these fundamental solitons continue propagation, maintaining the acquired frequency, once separated from the input N soliton's temporal slot. A universal optimal value of the relative strength of the third-order dispersion is found, providing the strongest compression of the fundamental soliton is found. It depends only on the order of the injected N-soliton. The largest compression degree significantly exceeds the analytical prediction supplied by the Satsuma-Yajima formula. The mechanism behind this effect, which remains valid in the presence of the self-steepening, is explained.
AB - Optimization of the compression of input N-solitons into robust ultra-narrow fundamental solitons, with a tunable up- or downshifted frequency, is proposed in photonic crystal fibers free of the Raman effect. Due to the absence of the Raman self-frequency shift, these fundamental solitons continue propagation, maintaining the acquired frequency, once separated from the input N soliton's temporal slot. A universal optimal value of the relative strength of the third-order dispersion is found, providing the strongest compression of the fundamental soliton is found. It depends only on the order of the injected N-soliton. The largest compression degree significantly exceeds the analytical prediction supplied by the Satsuma-Yajima formula. The mechanism behind this effect, which remains valid in the presence of the self-steepening, is explained.
UR - http://www.scopus.com/inward/record.url?scp=84884275648&partnerID=8YFLogxK
U2 - 10.1364/OL.38.003623
DO - 10.1364/OL.38.003623
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AN - SCOPUS:84884275648
SN - 0146-9592
VL - 38
SP - 3623
EP - 3626
JO - Optics Letters
JF - Optics Letters
IS - 18
ER -