Multiwavelength Random Fiber Laser based on Bidirectional SOA and Lyot filter


David, Allen Paul and Sulaiman, Abdul Hadi and Muhamad Aliza, Hanun Enani and Awang Lah, Airull Azizi and Ibrahim@Ghazali, Siti Azlida and Md. Yusoff, Nelidya (2023) Multiwavelength Random Fiber Laser based on Bidirectional SOA and Lyot filter. In: 2023 9th International Conference on Computer and Communication Engineering (ICCCE), 15-16 August 2023, Kuala Lumpur, Malaysia.

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We investigated the performance of multiwavelength random fiber laser (MWRFL) using a bidirectional semiconductor optical amplifier (SOA) and Lyot filter inside a ring cavity. The bidirectional nature of linear SOA acts as the gain medium while the Lyot filter functions as the wavelength-selective device. The input SOA current, half-wave plate (HWP) angles of polarization controllers (PCs), and the stability of the laser were measured to determine the best optimized lasing line. The best MWRFL performance of 57 lasing lines within the 5 dB spectral range, 27.5 dB extinction ratio (ER), and 11.4 nm multiwavelength bandwidth are achieved through 550 mA of SOA current. The HWP angles of 90° and 120° for PC1 and PC2 respectively aid in the best polarization state of the output spectrum compared to other HWP angles measured at every interval of 30°. The laser had good stability with a maximum peak value deviation of 0.35 dBm at a wavelength range from 1541.0 nm to 1549.0 nm.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Multiwavelength fiber laser, random fiber laser, semiconductor optical amplifier, Lyot filter, nonlinear polarization rotation, Rayleigh scattering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK8300-8360 Photoelectronic devices (General)
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 01 Nov 2023 01:37
Last Modified: 01 Nov 2023 01:38


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