Manganese (II) Coordination Polymer as a Nonlinear Saturable Absorber for Mode-Locking at 1-micron

Closed

M.A.M. Lutfi, H. Ahmad, M.K.A. Zaini, M.Z. Samion, N. Yusoff, Mousa Hussein, K. Thambiratnam, Z. Mahmoodin, S. Sun

2026 IEEE Journal of Quantum Electronics Vol. 62 Issue 4 Article Cited by 0

Abstract

A passive mode-locked laser was demonstrated using an all-fibre ytterbium-doped fibre laser. Mode-locking was generated using a manganese (Mn (II)) material as a saturable absorber (SA) in a ring-cavity ytterbium-doped fibre laser. The Mn (II)-SA, fabricated via the hydrothermal method, using trans-1-(2-pyridyl)-2-(4-pyridyl)ethylene linker and manganese(II) chloride tetrahydrate (MnCl2cdot 4H2O). The solution was then deposited onto a side-polished fibre, which exhibits a modulation depth of 18.1%, a saturation intensity of 0.74 MW/cm2, and a nonsaturable loss of 55.03%. The ring cavity outputs dissipative soliton mode-locked at 1030 nm, with a pulse duration of 9.1 ps and a repetition rate of 20.7 MHz. © 1965-2012 IEEE.

Affiliations

Universiti Malaya, Institute for Advanced Studies, The Photonics Research Centre, Kuala Lumpur, 50603, Malaysia; Universiti Malaya, Photonics Research Centre, The Physics Department, Faculty of Science, Kuala Lumpur, 50603, Malaysia; Universiti Kuala Lumpur British Malaysian Institute (UniKL BMI), Selangor, 53100, Malaysia; Universitas Negeri Malang, Faculty of Mathematics and Natural Sciences, Department of Physics, Malang, 65145, Indonesia; Universiti Malaya, Photonics Research Centre, Kuala Lumpur, 50603, Malaysia; Universiti Malaya, Faculty of Science, Department of Physics, Kuala Lumpur, 50603, Malaysia; United Arab Emirates University, Department of Electrical and Communication Engineering, Al Ain, United Arab Emirates; International Islamic University of Malaysia, Department of Physics, Kulliyyah of Science, Pahang, Kuantan, 25200, Malaysia; Qingdao University of Technology (QUT), School of Mechanical and Automotive Engineering, Qingdao, 266520, China