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The time width and the spectral width of the output pulse of ring laser based on Er3+-doped fibre amplifier and semiconductor optical amplifier have been investigated theoretically. Influences of Er3+-doped concentration, active region width, input current, the length of the cavity imposed on the spectral bandwidth of the output pulse have been analysed and discussed. By using the analyses and conclusions...
A SOA-based linear cavity mode-locked fiber laser is proposed with an external pulse sequence in this paper. 4.8 ps pulse sequence at 10 GHz is achieved successfully with time jitter about 60 fs in a simple configuration.
We describe the design and development of a novel tunable fiber laser and its application to polarization-mode dispersion measurements of optical fibers using broad-band orthogonal-pump four-wave mixing in a semiconductor optical amplifier.
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