Open AccessNoise reduction of supercontinua via optical feedback
Author(s) -
Nicoletta Brauckmann,
Michael Kues,
P. Groß,
Carsten Fallnich
Publication year - 2011
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.19.014763
Subject(s) - supercontinuum , optics , noise (video) , materials science , femtosecond , physics , relative intensity noise , fiber laser , noise reduction , optical fiber , laser , photonic crystal fiber , semiconductor laser theory , acoustics , computer science , artificial intelligence , image (mathematics)
The impact of delayed optical feedback on the supercontinuum noise properties is investigated numerically and experimentally. The supercontinuum is generated by coupling femtosecond laser pulses into a microstructured fiber within a ring resonator, which introduces the optical feedback. The power noise and spectral amplitude noise properties of this feedback system are numerically and experimentally compared with single-pass supercontinuum generation. In a demonstrative experiment via optical feedback the power noise could be reduced by 15 dB and the spectral amplitude noise could be reduced by up to 28 dB.