Open AccessAmplitude and phase noise sensitivity of modelocked Ti:sapphire lasers in terms of a complex noise transfer function
Author(s) -
Ryan P. Scott,
Theresa D. Mulder,
Kristy Z. Baker,
B.H. Kolner
Publication year - 2007
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.15.009090
Subject(s) - amplitude , optics , noise (video) , laser , amplitude modulation , quantum noise , phase noise , physics , phase (matter) , relative intensity noise , materials science , semiconductor laser theory , frequency modulation , telecommunications , bandwidth (computing) , quantum mechanics , artificial intelligence , computer science , image (mathematics) , quantum
The amplitude and envelope phase noise of a modelocked laser are shown to depend directly on the pump laser amplitude stability. We characterize the sensitivity of this process by a noise transfer function which represents the complex amplitude-to-amplitude modulation (AM-AM) and amplitude-to-phase modulation (AM-PM) conversion gain of the pump-induced amplitude and phase noise, respectively. We find that a linearized laser model extrapolated from relaxation oscillation theory, combined with a thermal model, adequately describe the principal features of the response from <1 Hz to 10 MHz.