Title :
SESAM and SWCNT Mode-Locked All-Fiber Thulium-Doped Lasers Based on the Nonlinear Amplifying Loop Mirror
Author :
Chernysheva, M.A. ; Krylov, A.A. ; Arutyunyan, Natalia R. ; Pozharov, Anatoly S. ; Obraztsova, Elena D. ; Dianov, Evgeny M.
Author_Institution :
Fiber Opt. Res. Center, Moscow, Russia
Abstract :
We report on thulium-doped all-fiber lasers based on the nonlinear amplifying loop mirror and mode-locked with a semiconductor saturable absorber (SESAM) or single-walled carbon nanotubes (SWCNTs). An intracavity and external dispersion management was realized with the aid of a passive germanium-silicate fiber. The SESAM mode-locked laser generates as short as 230-fs pulses with a maximum average output power of 106 mW, corresponding to a 3.7 kW peak power and almost 2 nJ pulse energy. In contrast to the SESAM-based laser, the SWCNT mode-locked laser generates 450-fs pulses of mW-level average output power.
Keywords :
carbon nanotubes; fibre lasers; laser cavity resonators; laser mode locking; mirrors; optical pulse generation; optical saturable absorption; semiconductor materials; thulium; C; SESAM mode-locked all-fiber thulium-doped lasers; SWCNT mode-locked all-fiber thulium-doped lasers; external dispersion; intracavity; nonlinear amplifying loop mirror; passive germanium-silicate fiber; semiconductor saturable absorber; single-walled carbon nanotubes; time 450 fs; Cavity resonators; Dispersion; Laser excitation; Laser mode locking; Measurement by laser beam; Power lasers; Pump lasers; Carbon nanotubes; fiber lasers; laser mode locking; optical pulse shaping;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2014.2313606
