abstract

• A switchable dual-wavelength thulium-doped all-fiber laser incorporating a fiber tip modal interferometer (FTMI) is reported. The FTMI relies on the splice joint between a standard single-mode optical fiber and a tapered microfiber with 60- μm uniform waist diameter, providing a spectral reflection response that allows the laser to emit beyond 2000 nm, specifically at 2009.20 nm and 2013.65 nm, under a dual-wavelength operation regime. Besides, switching between both laser lines is also observed and controlled by adjustments of the intracavity polarization state, obtaining the ability to operate in a single-wavelength regime at either 2009 nm or 2013 nm. Laser emission lines exhibit linewidths of around 50 pm, side-mode suppression ratios higher than 50 dB and maximum output power of 13.4 mW. © 1989-2012 IEEE.

authors

• Bello Jiménez Miguel Ángel
• Camarillo-Avilés A.
• Durán-Sánchez M.
• Garcia Ramirez M.A.
• Ibarra-Escamilla B.
• Jauregui-Vazquez D.
• López Estopier Rosa Elvia
• Pottiez O.
• Rojas-Laguna R.

publication date

• 2023-01-01

published in

• IEEE Photonics Technology Letters  Journal

keywords

• Fiber lasers; modal interference; optical fiber devices; thulium-doped fiber amplifiers Fiber amplifiers; Interferometers; Polarization; Polarization-maintaining fiber; Pumping (laser); Temperature measurement; Thulium; Fibre tip; Laser stability; Modal interference; Modal interferometers; Optical fiber devices; Optical fiber polarization; Optical fibers amplifiers; Pump laser; Thulium doped fiber amplifiers; Fiber lasers

Digital Object Identifier (DOI)

• 10.1109/LPT.2022.3221698

PubMed ID

start page

• 47

end page

• 50

volume

• 35

issue

• 1