Dual-wavelength nano-engineered Thulium-doped fiber laser via bending of singlemode-multimode-singlemode fiber structure
Document Type
Article
Publication Date
1-1-2016
Abstract
In this paper, a dual-wavelength fiber laser (DWFL) using nano-engineered Thulium-doped fiber as a gain medium with a bent singlemode-multimode-singlemode fiber structure (SMS) is demonstrated. The SMS structure is packaged systematically using Cr-39 polymer plates to provide linear bending via applied load. Experimental results have proved that the bent SMS is capable to provide highly effective wavelength filter and wavelengths stabilizer by balancing the net cavity gain between the two wavelengths. The DWFL provides very narrow spacing of 0.9 nm, narrow 3 dB spectral linewidth of ∼0.07 nm and SNR of ∼42 dB. Based on stability test, very small mode hopping is observed at the two wavelengths having deviations of ±0 nm and ±0.04 nm respectively. In conjunction, the DWFL provides very stable relative wavelength spacing with a deviation of ±0.04 nm.
Keywords
Singlemode-multimode-singlemode fiber, Dual-wavelength fiber laser, Thulium-doped fiber, Nano-engineered, Cr-39 plastic polymer, Mach-Zehnder interferometer
Divisions
fac_eng,PHYSICS
Funders
University of Malaya Grant No: UM.C/625/1/HIR/MOE/ENG/61 and PG008-2016
Publication Title
Optical Fiber Technology
Volume
32
Publisher
Elsevier