Title :
Wavelength-spacing continuously tunable multiwavelength erbium-doped fibre laser based on DSF and MZI
Author :
Chen, D. ; Qin, S. ; Gao, Y. ; Gao, S.
Author_Institution :
Centre for Opt. & Electromagn. Res., Zhejiang Univ., Hangzhou
Abstract :
A novel multiwavelength erbium-doped fibre laser is proposed by incorporating a section of dispersion-shifted fibre (DSF) and a Mach-Zehnder interferometer (MZI). The wavelength spacing of the fibre laser can be continuously tuned by adjusting an optical variable delay line in the MZI-based comb filter. Stable multiwavelength lasing at room temperature with the standard ITU (International Telecommunication Union) channel spacing of 0.2 nm (25 GHz), 0.4 nm (50 GHz), 0.8 nm (100 GHz) or 1.6 nm (200 GHz) is demonstrated
Keywords :
Mach-Zehnder interferometers; erbium; fibre lasers; laser tuning; optical fibre dispersion; Mach-Zehnder interferometer; channel spacing; comb filter; dispersion-shifted fibre; optical variable delay line; stable multiwavelength lasing; wavelength-spacing continuously tunable multiwavelength fibre laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070457
