Generation of mode-locked noise-like pulses in double-clad Tm-doped fibre laser with nonlinear optical loop mirror. Issue 2 (19th January 2020)

• Record Type: Journal Article
• Authors: Ahmad, H.; Ahmed, M. H. M.; Samion, M. Z.
• Is Part Of: Journal of modern optics. Volume 67:Issue 2(2020)
• Page Start: 146
• Page End: 152
• Publication Date: 2020-01-19
• Subjects: Double-clad fibre laser -- noise-like pulse -- mode-locked -- fiber laser -- 'Thulium doped fiber -- figure-of-eight; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2019.1699969
• Languages: English
• ISSNs: 0950-0340

Abstract

ABSTRACT: An all-fibre, noise-like pulse (NLP) mode locked double-clad thulium-doped fibre laser (DC-TDFL) with integrated figure-of-eight nonlinear optical loop mirror (NOLM) is demonstrated. The mode-locked NLP output has a spectral bandwidth of 14.8 nm centred at 1988.82 nm with a repetition rate of 2.85 MHz. A pulse width and pulse energy of 384 fs and 252.6 nJ respectively is achieved. The proposed laser is capable of generating a high-energy pulse over a broad spectrum, making it a potential candidate for the generation of a supercontinuum output in the mid-infrared region.