Dark pulse mode-locked fibre laser with zirconia-based erbium-doped fibre (Zr-EDF) and Black phosphorus saturable absorber
Document Type
Article
Publication Date
12-1-2020
Abstract
A dark pulse multi-wavelength mode-locked fibre laser was demonstrated via the enhanced zirconia-yttria-aluminium co-doped silica fibre (Zr-EDF) as a gain medium with the utilisation of black phosphorus as saturable absorber (BPSA). A self-started dark pulse was accomplished by increasing the pump power and carefully rotating a polarisation controller (PC). Five lasing lines of multi-wavelength were generated with small constant channel spacing of 0.6 nm. The measured fundamental repetition rate was 1 MHz with a pulse duration of 3.46 ps. At output power 9.89 mW, the calculated pulse energy was 9.89 nJ, whereas the optical signal to noise ratio (OSNR) was as high as 74.8 dB, which confirmed the stability of the dark pulse train.
Keywords
Mode-locked fibre lasers, Zirconia fibre, Dark pulse, Black phosphorus
Divisions
sch_ecs
Funders
Kementerian Pendidikan Malaysia (Grant No. 600-IRMI/FRGS-RACER 5/3 (107/2019)
Publication Title
OPTIK
Volume
223
Publisher
ELSEVIER GMBH
Publisher Location
HACKERBRUCKE 6, 80335 MUNICH, GERMANY