%0 Journal Article
%T Stable tunable single-longitudinal-mode semiconductor optical amplifier erbium-doped fiber ring lasers for 10 Gbps transmission over 50 km single-mode fiber
%A Chih-Lung Tseng
%A Cheng-Kuang Liu
%A Zih-Rong Lin
%A Chia-Ming Chiu
%J Optica Applicata
%D 2010
%I 
%X We demonstrate a stable and tunable single-longitudinal-mode SOA-EDF ring laser for high-speed data transmission systems. The laser is constructed by incorporating an SOA into the EDF ring cavity. The SOA acts as a saturable absorption high-pass filter to suppress cavity mode partition noise at low frequencies. Such design ensures a stable and single-frequency operation for more than several hours. The ring laser has a 30 nm tuning range in the C band and a 0.8 nm wavelength spacing to match 100-GHz ITU-T grids. The variation in the maximum power is smaller than 0.02 dB and the optical signal-to-noise ratio is above 53 dB. By employing this fiber laser, a 10 Gbps non-return zero data transmission over a 50 km long single-mode fiber with a power penalty less than 2.4 dB is demonstrated.
%K optical fiber transmission
%K tunable fiber ring lasers
%K erbium-doped fiber
%K semiconductor optical amplifier
%K single-longitudinal-mode
%K saturable absorber
%U http://www.if.pwr.wroc.pl/~optappl/pdf/2010/no4/optappl_4004p927.pdf