Citation

Muridan, Norasmahan and Sulaiman, Abdul Hadi and Norizan, Siti Fatimah and Ibrahim@Ghazali, Siti Azlida and Yusoff, Nelidya Md (2025) Stable and channel spacing tunable of SOA-based multiwavelength fiber laser utilizing parallel Lyot filter. Results in Optics, 21. p. 100890. ISSN 2666-9501

Text Stable and channel spacing tunable of SOA-based multiwavelength fiber laser utilizing parallel Lyot filter.pdf - Published Version Restricted to Repository staff only Download (7MB)

Abstract

We proposed the generation of a tunable channel-spacing in a 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 tunable 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
Uncontrolled Keywords:	Fiber laser
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:	Faculty of Artificial Intelligence & Engineering (FAIE)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	30 Sep 2025 08:35
Last Modified:	05 Oct 2025 16:14
URII:	http://shdl.mmu.edu.my/id/eprint/14616

Downloads

Edit (login required)