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A tunable and switchable multiwavelength passively mode-locked fiber laser by using a semiconductor saturable absorber mirror (SESAM) and an inline birefringence fiber filter is proposed and demonstrated. By properly rotating the polarization controllers (PCs), up to 7-wavelength mode-locked pulses in 3-dB bandwidth with 3.65-nm channel spacing are obtained. The wavelength switchable operation is...
We propose and demonstrate an efficiently switchable dual-wavelength passively mode-locked fiber laser incorporating a semiconductor saturable absorber mirror (SESAM) and a comb filter. The onset of passive mode-locking is assisted with the SESAM. By properly rotating the polarization controllers (PCs), the switchable dual-wavelength mode-locked operation are efficiently obtained.
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