Title :
CNT Film Fabrication for Mode-Locked Er-Doped Fiber Lasers: The Droplet Method
Author :
Gerosa, Rodrigo M. ; Steinberg, D. ; Rosa, H.G. ; Barros, C. ; de Matos, Christiano J. S. ; de Souza, E.A.T.
Author_Institution :
Graphene & Nano-Mater. Res. Center, Univ. Presbiteriana Mackenzie, Sao Paulo, Brazil
Abstract :
We present a new and simple method for the fabrication of carbon nanotube (CNT) films for fiber laser mode-locking. Using a microtip, we deposited a droplet of CNT/polymer suspension directly onto a fiber ferrule. Typical film thicknesses as low as 20 μm are measured. Thicker films are easily achievable through the deposition of additional droplets, which allow for fine tuning the transmittance of the film. Based on a 40-mg/ml CNT concentration film used in an Erbium-doped fiber laser, we obtain mode-locked pulses with a bandwidth of 10.2 nm and duration of 364 fs.
Keywords :
carbon nanotubes; drops; erbium; fibre lasers; high-speed optical techniques; infrared spectra; laser mode locking; liquid phase deposition; nanofabrication; nanophotonics; thin films; C; CNT concentration film; CNT-polymer suspension; carbon nanotube films; droplet method; erbium-doped fiber laser; fiber ferrule; film thicknesses; fine tuning; microtip; mode-locked Er-doped fiber lasers; mode-locked pulses; thick films; time 364 fs; transmittance; Carbon nanotubes; fiber laser; mode-locked lasers; saturable absorption;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2255871
