Samarium (III) oxide thin film as a saturable absorber for the passively Q-switched Tm-doped fiber laser

Rusdi, K.N. and Hisyam, Mohamad Badrol and Mohd Rusdi, Muhammad Farid and Zulkipli, Nur F. and Abdul Latiff, Anas and Harun, Sulaiman Wadi and Saidin, Norazlina (2019) Samarium (III) oxide thin film as a saturable absorber for the passively Q-switched Tm-doped fiber laser. In: Photonics Meeting 2019, The 2nd Annual Conference and Workshop, 8 - 9 July 2019, Dungun, Terengganu.

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Abstract

We have demonstrated a passive Q-switched Thulium-doped fiber laser (TDFL using samarium oxide (Sm2O3) nanomaterial as saturable absorber (SA). The Sm2O3 based SA was fabricated by simply mixing the Sm2O3 powder solution with polyvinyl alcohol (PVA) solution. The homogeneously mixed solution was spread and dry to form a thin film. A piece of 1 mm x 1 mm of the SA thin film is sandwiched between two fiber ferrules and incorporated into a TDFL ring cavity for pulses generation. By controlling the loss and gain in the cavity, stable Q-switching operation was generated. The repetition rate was tunable from 17.62 kHz to 29.20 kHz by varying the pump power from 619 mW to 784 mW. The smallest pulse width of 3.54 µs and the highest pulse energy of 0.20 uJ were obtained at the highest pump power.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	5653/79611
Uncontrolled Keywords:	Fiber laser, Q-switched, saturable absorber
Subjects:	T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Norazlina Saidin
Date Deposited:	18 Mar 2020 11:08
Last Modified:	15 Jul 2020 14:53
URI:	http://irep.iium.edu.my/id/eprint/79611

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