Semiconductor optical amplifier-based multi-wavelength ring laser utilizing photonic crystal fiber

Harun, Sulaiman Wadi and Parvizi, Roghaieh and Shahabuddin, Nurul Shahrizan and Yusoff, Zulfadzli and Ahmad, Harith (2010) Semiconductor optical amplifier-based multi-wavelength ring laser utilizing photonic crystal fiber. Journal of Modern Optics, 57 (8). pp. 637-640. ISSN 0950-0340, DOI

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A multi-wavelength laser source is demonstrated with a semiconductor optical amplifier (SOA) as a gain medium. A multi-wavelength comb with equal spacing is achieved due to Fabry-Perot modes of the SOA which oscillates in the ring cavity. A 100 m long photonics crystal fiber (PCF) is inserted in the ring cavity to provide a nonlinear gain by four-wave mixing (FWM) so that the output comb spectrum can be greatly broadened and flattened. The stability of the ring laser is also increased due to the efficient FWM phenomenon occurring in the PCF. The SOA-based laser can generate 35 lasing lines with equal spacing of 0.28 nm and extinction ratios of more than 30 dB at room temperature. The number of channels of the multi-wavelength laser can be controlled flexibly by changing the ratio of the coupler used in the ring cavity configuration as well as controlling the polarization state of the oscillating laser.

Item Type: Article
Uncontrolled Keywords: Four-wave mixing effect; Multi-wavelength laser; Photonic crystal fiber; Semiconductor optical amplifier; SOA-based laser
Subjects: 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: 30 Nov 2018 02:36
Last Modified: 30 Nov 2018 02:36

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