SOA-based multi-wavelength source

Ahmad, Harith and Shahabuddin, Nurul Shahrizan and Rahman, Asiqur A. and Thambiratnam, Kavintheran and Harun, Sulaiman Wadi (2008) SOA-based multi-wavelength source. Journal of Modern Optics, 55 (14). pp. 2179-2185. ISSN 0950-0340, DOI

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A simple fiber laser configuration based on a semiconductor optical amplifier (SOA) is proposed for obtaining multi-wavelength oscillation at room temperature, in which a Sagnac loop mirror is used as the wavelength selective component. The SOA has a flat gain of approximately 23dB within a bandwidth of 12 nm at a small input signal power. The loop mirror was constructed using a 3dB coupler and polarization maintaining fiber (PMF). The output spectrum of the proposed laser can be adjusted by controlling the bias current of the SOA and is quite stable at room temperature. At a bias current of 150 mA, six lines are obtained with at least -40 dBm output power and 25dB signal-to-noise ratio (SNR). The channel spacing and number of lines is determined by the length of polarization maintaining fiber (PMF) used in the loop mirror. The channel spacing of the proposed laser is 1.49 nm with a PMF 3 m. The multi-wavelength comb output can also be tuned by adjusting the operating temperature of the SOA. The multi-wavelength laser has the advantage of a simple configuration, stability at room temperature, a broad wavelength band, and no need for optical pump lasers.

Item Type: Article
Uncontrolled Keywords: Multi-wavelength fiber laser; SOA; Fiber laser
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: 29 Oct 2018 09:08
Last Modified: 29 Oct 2018 09:08

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