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Investigation of Brillouin Raman fiber laser operating at 1558 nm using THDF saturable absorber

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, , Citation Z. I. Rizman et al 2017 IOP Conf. Ser.: Mater. Sci. Eng. 210 012048 DOI 10.1088/1757-899X/210/1/012048

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zairi576@tganu.uitm.edu.my

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1 Faculty of Electrical Engineering, Universiti Teknologi MARA, Terengganu Campus, Dungun Branch, 23000 Dungun, Terengganu, Malaysia

2 Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

3 Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia

4 Faculty of Electronic and Computer Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia

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1757-899X/210/1/012048

Abstract

We report a generation of Brillouin-Raman fiber laser (BRFL) which operating at 1558 nm wavelength. The proposed configuration utilizes a nonlinear gain medium of 7.7 km long dispersion compensating fiber (DCF) and using thulium holmium-doped fiber (THDF) as a fiber saturable absorber (SA). The self-started Q-switching operation starts at 569 mW pump power and keep stable until 721 mW pump level. The stable repetition rate of 22 kHz and pulse width of 1.791 µs are obtained with a signal to noise ratio (SNR) of 32 dB. This work shows the fiber SA can be used promisingly in a BRFL for pulse laser generation.

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10.1088/1757-899X/210/1/012048