Tunable Multiwavelength SOA-Based Fiber Laser


Tunable multiwavelength fiber lasers based on semiconductor optical amplifiers (SOA) have received attracting interest due to their wide prospective applications in dense division multiplexing (DWDM) systems and optical sensing. Using an SOA in a nonlinear optical loop mirror (NOLM), we demonstrate up to 13 lasing peaks by controlling the pump current and the polarization controller. At maximum pump current (450 mA), the emitted multiwavelength is between 1550 nm and 1572 nm with a wavelength spacing of 1.87 nm and 3 dB output linewidth of 0.8 nm with an output power of −7 dBm and 27 dB optical signal-to-noise ratio (OSNR). The multiwavelength output power and multiwavelength peak stability are investigated, and it was found that the power fluctuation of each multiwavelength line is less than 0.2 dB. In addition, by adjusting the polarization controllers (PCs) and SOA temperature, we obtained a tunable multiwavelength emission. The proposed fiber laser offers advantages such as simple structure, low loss, and long-time stable and multiwavelength emission.

Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies
Additional Information: Copyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/4.0/). Funding & acknowledgments: The authors acknowledge support from UK EPSRC (EP/W002868/1), and Horizon 2020 ETN MEFISTA (861152).
Publication ISSN: 2079-9292
Last Modified: 29 Nov 2023 13:39
Date Deposited: 09 Aug 2023 09:38
Full Text Link: 10.3390/electronics12153277
Related URLs: https://www.mdp ... 9292/12/15/3277 (Publisher URL)
PURE Output Type: Article
Published Date: 2023-08
Published Online Date: 2023-07-30
Accepted Date: 2023-07-28
Submitted Date: 2023-07-11
Authors: Kbashi, Hani J.
Sharma, Vishal
Sergeyev, Sergey V.



Version: Published Version

License: Creative Commons Attribution

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