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

Azooz, S. M and Hamida, Belal Ahmed and Khan, Sheroz and Eltaif, Tawfig and Jasim, Ali Abdulhadi and Ahmad, Harith B. and Harun, Sulaiman Wadi (2014) All-fibre dual-wavelength thulium-doped fibre laser based on spatial filtering effect. Ukrainian Journal of Physical Optics, 15 (2). pp. 79-83. ISSN 16091833

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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 (Journal)
Additional Information: 7222/41890
Uncontrolled Keywords: Dual-wavelength lasers; Fibre lasers; Thulium-doped fibre lasers
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Belal Ahmed Hamida
Date Deposited: 20 Apr 2015 08:49
Last Modified: 12 Nov 2019 14:26
URI: http://irep.iium.edu.my/id/eprint/41890

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