25 October 2016 Passively harmonic mode-locked pulses in thulium-doped fiber laser based on nonlinear polarization rotation
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Abstract
A simple approach to generate passively harmonic mode-locked pulse trains in thulium-doped fiber laser based on nonlinear polarization rotation is proposed and demonstrated. Three different ways of mode-locked techniques have been employed in our structure to generate passively high-order harmonic mode-locked pulse trains; 128th-order passively harmonic mode-locked pulse train is achieved in the experiment and the repetition rate is 406.8 MHz. With the increase of the pump power, multiwavelength output can be tuned. A segment of dispersion compensation fiber is used to compensate the dispersion in the cavity; thus, the single pulse width is compressed from 617 to 48 ps.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Qingsong Jia, Tianshu Wang, Wanzhuo Ma, Peng Liu, Peng Zhang, Baoxue Bo, Yan Zhang, "Passively harmonic mode-locked pulses in thulium-doped fiber laser based on nonlinear polarization rotation," Optical Engineering 55(10), 106121 (25 October 2016). https://doi.org/10.1117/1.OE.55.10.106121 . Submission:
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