Stable and channel spacing tunable of SOA-based multiwavelength fiber laser utilizing parallel Lyot filter

Muridan, Norasmahan and Sulaiman, Abdul Hadi and Norizan, Siti Fatimah and Ibrahim, Siti Azlida and Md Yusoff, Nelidya (2025) Stable and channel spacing tunable of SOA-based multiwavelength fiber laser utilizing parallel Lyot filter. Result in optics, 21 (NA). pp. 1-10. E-ISSN 2666-9501

	PDF - Published Version Download (6MB)
	PDF (Scopus) - Supplemental Material Download (200kB)
	PDF (WOS) - Supplemental Material Download (203kB)

Abstract

We proposed a generation of a tuneable channel-spacing in multiwavelength fiber laser that incorporates a semiconductor optical amplifier (SOA) and a parallel Lyot filter. Previously, only a few works demonstrated channel spacing tunability using parallel Lyot filter, with none of them utilizing SOA. A stable and tuneable multiwavelength spectrum with up to three distinct channel spacings is demonstrated using three different sets of parallel Lyot filter either Short, Long, and Mixed based on varying lengths of polarization-maintaining fiber (PMF). Channel spacing tunability is achieved by selecting different PMF length combinations. Experimental results show that two channel spacing modes, either single or multiple, can be selected for each configuration. Additionally, increasing the SOA drive current results in a greater number of lasing lines with higher intensity within the cavity. The system demonstrates good stability, with peak power differences of 1.46 dB, 0.65 dB, and 2.61 dB for the Short, Long, and Mixed sets, respectively, during a 60-minute observation period.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Multiwavelength fiber laser, Lyot filter, semiconductor optical amplifier, intensity dependent loss
Subjects:	Q Science > QC Physics T Technology > T Technology (General) > T10.5 Communication of technical information
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Physics Kulliyyah of Science
Depositing User:	Mrs Siti Fatimah Norizan
Date Deposited:	03 Dec 2025 10:40
Last Modified:	03 Dec 2025 10:40
Queue Number:	2025-11-Q320
URI:	http://irep.iium.edu.my/id/eprint/124867

Actions (login required)

View Item