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

Sulaiman, A. H. and Md. Yusoff, N. 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 25024752

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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 > TK5101-5865 Telecommunication. Telegraph.
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 23 Jun 2019 06:52
Last Modified: 23 Jun 2019 06:52
URI: http://eprints.uthm.edu.my/id/eprint/11542
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