Open AccessASE narrow-band noise pulsing in erbium-doped fiber amplifier and its effect on self-phase modulation
Author(s) -
Pablo Muniz-Cánovas,
Yuri O. Barmenkov,
Alexander V. Kir’yanov,
J.L. Cruz,
Miguel V. Andrés
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.008520
Subject(s) - amplified spontaneous emission , optics , noise (video) , phase noise , self phase modulation , physics , modulation (music) , spontaneous emission , materials science , phase modulation , superradiance , nonlinear optics , laser , acoustics , artificial intelligence , computer science , image (mathematics)
In this paper, we report a study of the features of polarized and unpolarized narrow-band amplified spontaneous emission (ASE) in a low-doped erbium fiber at 976-nm pumping. We demonstrate that ASE noise can be treated as a train of Gaussian-like pulses with random magnitudes, widths, and inter-pulse intervals. ASE noise can also provide a statistical analysis of these three parameters. We also present the data that reveal ASE noise's role in optical spectrum broadening through self-phase modulation of light propagating in a communication fiber. In particular, the data show that the ASE noise derivative defines the broadening's spectral shape.