SOA based fiber ring laser with Fiber Bragg Grating

Ahmad, Harith and Ooi, H.C. and Sulaiman, Abdul Hadi and Thambiratnam, Kavintheran and Zulkifli, Mohd Zamani and Harun, Sulaiman Wadi (2008) SOA based fiber ring laser with Fiber Bragg Grating. Microwave and Optical Technology Letters, 50 (12). pp. 3101-3103. ISSN 0895-2477, DOI

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A semiconductor optical amplifier fiber ring laser (SOAFRL) utilizing a Fiber Bragg Grating (FBG) is demonstrated. The laser operates at a wavelength of 1547.64 nm, equal to the Bragg wave-length. By removing FBG, the SOAFRL shows a multi-modes output due to the resonant characteristics of the semiconductor optical amplifiers (SOA's) gain. The output power ripple is observed around 5 dB. The experimental results show that when the saturation level is reached, the SOAFRL with the FBG shows a higher saturation current and peak power compared to that of the SOAFRL without the FBG. Mode competition in the cavity for the free-running ring SOAFRL results in a lower peak power as well as a broader bandwidth as the current is increased. By incorporating the FBG in the SOAFRL, a losing wavelength is generated and as such the side mode suppression ratio (SMSR) of the laser is significantly improved, resulting in a higher peak power at higher bias currents.

Item Type: Article
Uncontrolled Keywords: Fiber bragg grating; Fiber laser; Semiconductor optical amplifier
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Nov 2018 02:22
Last Modified: 28 Nov 2018 02:22

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