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26 October 2009 A novel L-band multiwavelength mode-locked semiconductor fibre laser
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We present a multiwavelength mode-locked fiber ring laser incorporating a semiconductor optical amplifier (SOA) and a Fabry-Perot semiconductor optical amplifier (FP-SOA). SOA is mode-locked by an injected external optical signal, act as loss modulator, and FP-SOA serves as a tunable comb filter. Our laser source can generate 19 synchronized wavelength channels with the extinction ratio of about 21 dB, each mode-locked at 10 GHz, and modelocked pulse width is about 40 ps. Oscillation wavelengths band and wavelength spacing can be tuned by adjusting bias current and a tunable optical delay line (ODL) or a temperature controller, respectively. Polarization insensitive devices ensure that the output power is rather stable.
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Fei Wang, Xinliang Zhang, Enming Xu, and Yu Zhang "A novel L-band multiwavelength mode-locked semiconductor fibre laser", Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160Z (26 October 2009);

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