TY - JOUR
T1 - Dissipative soliton fiber lasers with higher-order nonlinearity, multiphoton absorption and emission, and random dispersion
AU - Parmar, Gurkirpal Singh
AU - Jana, Soumendu
AU - Malomed, Boris A.
N1 - Publisher Copyright:
© 2017 Optical Society of America.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - We study the generation of dissipative solitons (DSs) in the model of the fiber-laser cavities under the combined action of cubic-quintic nonlinearity, multiphoton absorption and/or multiphoton emission (nonlinear gain), and gain dispersion. A random component of the group-velocity dispersion (GVD) is included too. The DS creation and propagation are studied by means of a variational approximation and direct simulations, which are found to be in reasonable agreement. With a proper choice of the gain, robust DS operation regimes are predicted for different combinations of multiphoton absorption and emission, in spite of the presence of the perturbation in the form of the random GVD. Importantly, the zero background around the solitons remains stable in the presence of the (necessary) linear gain. The solitons are stable too against a certain (realistic) level of noise. Another essential finding is that the quintic gain in the form of three-photon emission (3PE) offers an alternative mechanism for supporting stable solitons, provided that it is not too strong. The DSs coexist in low- and high-amplitude forms, for a given value of their width. The low-amplitude DS is stable, while its high-amplitude counterpart is subject to the blowup instability, in the presence of the 3PE. Interactions between DSs show various scenarios of the creation of breather states through merger of the two solitons.
AB - We study the generation of dissipative solitons (DSs) in the model of the fiber-laser cavities under the combined action of cubic-quintic nonlinearity, multiphoton absorption and/or multiphoton emission (nonlinear gain), and gain dispersion. A random component of the group-velocity dispersion (GVD) is included too. The DS creation and propagation are studied by means of a variational approximation and direct simulations, which are found to be in reasonable agreement. With a proper choice of the gain, robust DS operation regimes are predicted for different combinations of multiphoton absorption and emission, in spite of the presence of the perturbation in the form of the random GVD. Importantly, the zero background around the solitons remains stable in the presence of the (necessary) linear gain. The solitons are stable too against a certain (realistic) level of noise. Another essential finding is that the quintic gain in the form of three-photon emission (3PE) offers an alternative mechanism for supporting stable solitons, provided that it is not too strong. The DSs coexist in low- and high-amplitude forms, for a given value of their width. The low-amplitude DS is stable, while its high-amplitude counterpart is subject to the blowup instability, in the presence of the 3PE. Interactions between DSs show various scenarios of the creation of breather states through merger of the two solitons.
UR - http://www.scopus.com/inward/record.url?scp=85017159294&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.34.000850
DO - 10.1364/JOSAB.34.000850
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:85017159294
SN - 0740-3224
VL - 34
SP - 850
EP - 860
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 4
ER -