Multiwavelength fiber laser based on bidirectional lyot filter in conjunction with intensity dependent loss mechanism

Sulaiman, A. H. and Yusoff, N. Md. and Cholan, N. A. and Mahdi, M. A. (2018) Multiwavelength fiber laser based on bidirectional lyot filter in conjunction with intensity dependent loss mechanism. Indonesian Journal of Electrical Engineering and Computer Science, 10 (3). pp. 840-846. ISSN 2502-4752

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Abstract

We experimentally demonstrate a multiwavelength fiber laser (MWFL) based on bidirectional Lyot filter. A semiconductor optical amplifier (SOA) is used as the gain medium, while its combination with polarization controllers (PCs) and polarization beam combiner (PBC) induces intensity dependent loss (IDL) mechanism. The IDL mechanism acts as an intensity equalizer to flatten the multiwavelength spectrum, which can be obtained at a certain polarization state. Using different ratio of optical splitter has affected to multiwavelength flatness degradation. Subsequently, when we removed a polarizer in the setup, the extinction ratio (ER) is decreased. Ultimately, with two segments of polarization maintaining fiber (PMF), two channel spacings can be achieved due to splicing shift of 0° and 90°.

Item Type:	Article
Uncontrolled Keywords:	Bidirectional Lyot filter; Intensity dependent loss; Multiwavelength fiber laser; Semiconductor optical amplifier
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Electrical and Electronic Engineering > Department of Electronic Enngineering
Depositing User:	Miss Afiqah Faiqah Mohd Hafiz
Date Deposited:	20 Oct 2021 03:47
Last Modified:	20 Oct 2021 03:47
URI:	http://eprints.uthm.edu.my/id/eprint/2528

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