Title :
Carbon-nanotube-based passively mode-locked fiber laser for supercontinuum generation
Author :
Liu, Huan Huan ; Wong, Jia Haur ; Chow, K.K. ; Shum, Perry Ping
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We demonstrate the generation of a flat supercontinuum (SC) at 1550 nm using photonic crystal fiber (PCF) of normal dispersion when injected by a fiber laser that is passively mode locked by single-wall carbon-nanotube-based saturable absorber (SWNT-SA). The self-started mode-locked laser with a threshold power of 52 mW together with the PCF can generate a SC covering 223 nm over the entire C+L band with less than 7 dB fluctuations. The results are analyzed by solving the nonlinear Schrödinger equation and the flat SC is mainly originated from the interplay of dispersion and self-phase modulation.
Keywords :
Schrodinger equation; carbon nanotubes; fibre lasers; holey fibres; laser mode locking; nanotube devices; optical fibre dispersion; optical saturable absorption; photonic crystals; self-phase modulation; supercontinuum generation; C; carbon nanotube; nonlinear Schroodinger equation; normal dispersion; passively mode locked fiber laser; photonic crystal fiber; power 52 mW; saturable absorber; self-phase modulation; supercontinuum generation; wavelength 1550 nm; wavelength 223 nm; Erbium-doped fiber lasers; Laser mode locking; Optical fiber amplifiers; Optical fiber dispersion; Supercontinuum generation;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5706057
