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Soliton fiber laser mode‐locked by a single‐wall carbon nanotube‐polymer composite
Author(s) -
Wang F.,
Rozhin A. G.,
Sun Z.,
Scardaci V.,
White I. H.,
Ferrari A. C.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200879632
Subject(s) - carbon nanotube , saturable absorption , materials science , laser , saturation (graph theory) , soliton , fiber laser , composite number , nanotube , absorption (acoustics) , ring laser , ultrafast laser spectroscopy , optics , optoelectronics , fiber , nanotechnology , composite material , physics , mathematics , combinatorics , nonlinear system , quantum mechanics
We present a detailed investigation of pulse width and spectral dynamics of an Er 3+ ‐doped soliton fiber ring laser, mode‐locked by a carbon‐nanotube‐polymer composite. The laser is stable and produces ∼ 650 fs pulses at a fundamental repetition rate of 20.8 MHz. The carbon nanotube saturable absorber has a low saturation intensity of ∼ 18.9 MW/cm 2 and a 16.9% reduction in absorption (due to saturation) at high pulse intensity (∼ 270 MW/cm 2 ). Spectral and transient effects confirm the soliton operation of the laser. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)