Publication: Dual-wavelength thulium/holmium-doped fiber laser generation in 2 ?m region with high side-mode suppression ratio
Date
2019
Authors
Lau K.Y.
Zainol Abidin N.H.
Cholan N.A.
Abas A.F.
Alresheedi M.T.
Mahdi M.A.
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing Ltd
Abstract
We demonstrate a dual-wavelength laser with emission in the 2 ?m wavelength region using a thulium/holmium co-doped fiber and a non-adiabatic tapered fiber as a comb filter. The configuration employed a backward pumping scheme and dual-wavelength laser was generated at 2023.53 and 2032.82 nm. The side-mode suppression ratio (SMSR) is more than 44 dB with overall good stability performance. The proposed configuration presents a simple yet practical scheme of generating 2 ?m dual-wavelength laser with good SMSR. This investigation may offer a more efficient yet eye safe dual-wavelength related applications for end users. � 2019 IOP Publishing Ltd.
Description
Comb filters; Fiber lasers; Fibers; Thulium; Backward pumping; Dual wavelength; Dual wavelength laser; Laser generation; Practical schemes; Side mode suppression ratios; Tapered fiber; Wavelength regions; Pumping (laser)