Title :
7.8-GHz Graphene-Based 2-μm Monolithic Waveguide Laser
Author :
Yingying Ren ; Brown, G. ; Mary, Rose ; Demetriou, Giorgos ; Popa, D. ; Torrisi, F. ; Ferrari, A.C. ; Feng Chen ; Kar, Ajoy K.
Author_Institution :
Coll. of Phys. & Electron., Shandong Normal Univ., Jinan, China
Abstract :
We report a pulsed waveguide laser working at 1944 nm, mode-locked with a saturable absorber consisting of a graphene film deposited on an output coupler mirror. The waveguide is created into a ceramic Thulium-doped Yttrium Aluminium Garnet by ultrafast laser inscription. Q-switched mode-locking is achieved, with 6.5 mW average output power and ~7.8 GHz pulse rate. This is a convenient, compact, high repetition rate laser for various applications, such as medical diagnostics and spectroscopy.
Keywords :
Q-switching; ceramics; graphene; laser mirrors; laser mode locking; optical couplers; solid lasers; thin films; thulium; waveguide lasers; C; Q-switched mode-locking; YAG:Tm; ceramic thulium-doped yttrium aluminium garnet; compact high repetition rate laser; frequency 7.8 GHz; graphene film; graphene-based monolithic waveguide laser; output coupler mirror; output power; power 6.5 mW; pulse rate; pulsed waveguide laser; saturable absorber; ultrafast laser inscription; wavelength 2 mum; Fiber lasers; Graphene; Laser mode locking; Optical waveguides; Pump lasers; Sun; Waveguide lasers; Graphene Saturable Absorbers; Laser applications; Laser made-locking; Optical waveguides; Solid lasers;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2014.2350016
