Open AccessLow pump threshold CVD graphene based passively harmonic mode‐locked fibre laser
Author(s) -
Chow Kin Kee
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.4325
Subject(s) - materials science , fiber laser , saturable absorption , graphene , laser , harmonic , optoelectronics , mode locking , optics , chemical vapor deposition , noise (video) , soliton , nanotechnology , physics , acoustics , nonlinear system , quantum mechanics , artificial intelligence , wavelength , computer science , image (mathematics)
A low pump threshold passively harmonic mode‐locked fibre laser is demonstrated. The key component is a chemical vapour deposition grown graphene saturable absorber to enable higher order harmonic mode‐locking (HML) of the fibre laser with good output noise characteristics. With a relatively low pump power of 100 mW, the fibre laser generates ∼1 ps soliton pulses at the 21st order of HML with 40 dB of super‐mode noise suppression.