Research output: Contribution to journal › Article › peer-review
Efficient numerical model of stimulated Raman scattering in optical fibers. / Smirnov, Sergey.
In: Journal of the Optical Society of America B: Optical Physics, Vol. 37, No. 4, 01.04.2020, p. 1219-1223.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Efficient numerical model of stimulated Raman scattering in optical fibers
AU - Smirnov, Sergey
PY - 2020/4/1
Y1 - 2020/4/1
N2 - The paper proposes a novel efficient numerical model for simulation of spectral and temporal transformation of laser pulses due to interplay of Kerr and Raman nonlinearity and chromatic dispersion in the process of propagation through single-mode optical fibers. The model reproduces qualitatively the spectral shape of Raman gain within the approximation of slowly varying amplitudes using a pair of meshes (for pump and Stokes waves) with a reduced number of points. Nonlinear propagation of 100-ps-long laser pulses along an optical fiber is used as a test bed for the new model. It is shown that the proposed model provides accuracy better than 10% in Stokes wave energy growth speed, while being up to eight times more efficient in memory usage and computation speed compared to the generalized nonlinear Schrödinger equation.
AB - The paper proposes a novel efficient numerical model for simulation of spectral and temporal transformation of laser pulses due to interplay of Kerr and Raman nonlinearity and chromatic dispersion in the process of propagation through single-mode optical fibers. The model reproduces qualitatively the spectral shape of Raman gain within the approximation of slowly varying amplitudes using a pair of meshes (for pump and Stokes waves) with a reduced number of points. Nonlinear propagation of 100-ps-long laser pulses along an optical fiber is used as a test bed for the new model. It is shown that the proposed model provides accuracy better than 10% in Stokes wave energy growth speed, while being up to eight times more efficient in memory usage and computation speed compared to the generalized nonlinear Schrödinger equation.
KW - DISSIPATIVE SOLITONS
KW - LASER
KW - CAVITY
KW - OSCILLATOR
KW - SPECTRUM
UR - http://www.scopus.com/inward/record.url?scp=85083858044&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.387812
DO - 10.1364/JOSAB.387812
M3 - Article
AN - SCOPUS:85083858044
VL - 37
SP - 1219
EP - 1223
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 4
ER -
ID: 24159413