Title :
Graphene Saturable Absorber Based on Slightly Tapered Fiber With Inner Air-Cavity
Author :
Tao Chen ; Huifang Chen ; Wang, D.N.
Author_Institution :
Coll. of Opt. & Electron. Technol., China Jiliang Univ., Hangzhou, China
Abstract :
We experimentally demonstrate a passively mode-locked fiber laser operation by using a saturable absorber based on graphene deposited on slightly tapered optical fiber with inner air-cavity. Such a saturable absorber enables a strong light-graphene interaction owing to the evanescent field of the excited cladding mode, and as a result, stable passively mode-locked laser pulses with pulsewidth of 674 fs have been generated, and in addition, a harmonic mode-locking operation can also be achieved.
Keywords :
fibre lasers; graphene; laser beams; laser cavity resonators; laser mode locking; optical saturable absorption; C; evanescent field; excited cladding mode; graphene saturable absorber; harmonic mode-locking operation; inner air-cavity; passively mode-locked fiber laser operation; pulsewidth; slightly tapered optical fiber; strong light-graphene interaction; time 674 fs; Cavity resonators; Graphene; Laser mode locking; Nonlinear optics; Optical polarization; Optical surface waves; Ultrafast optics; Graphene; inner air-cavity; mode locking; saturable absorber;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2015.2410912
