Аll-fibre dual-wavelength thulium-doped fibre laser based on spatial filtering effect

Azooz, S.M. and Hamida, B.A. and Khan, S. and Eltaif, T. and Jasim, A.A. and Ahmad, Harith and Harun, Sulaiman Wadi (2014) Аll-fibre dual-wavelength thulium-doped fibre laser based on spatial filtering effect. Ukrainian Journal of Physical Optics, 15 (2). pp. 79-83. ISSN 1609-1833

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Abstract

We report a room-temperature all-fibre dual-wavelength thulium-doped fibre laser that operates around 1900 nm and uses a spatial mode-beating filter in a ring configuration. By pumping the gain medium with an 800 nm laser and controlling the phase mismatch at the splicing points of a thulium-doped fibre, the two output lines are obtained at 1844.8 and 1852.0 nm, with the corresponding signal-to-noise ratios of 30 and 21 dB. The threshold pump power is 109.3 mW. At the maximum pump power of 131.7 mW, the output powers are 0.297 and 0.038 mW for the 1844.8 and 1852.0 nm laser lines, respectively.

Item Type: Article
Uncontrolled Keywords: Fibre lasers; Dual-wavelength lasers; Thulium-doped fibre lasers
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Oct 2015 02:55
Last Modified: 09 Oct 2018 04:58
URI: http://eprints.um.edu.my/id/eprint/14317

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