98 fs High Energy Stable Hybrid Mode-Locked Nonlinear Polarization Rotation With CuO-Doped ZnO Saturable Absorber

Ahmad, Harith and Lutfi, M.A.M. and Samion, M.Z. and Zaini, M.K.A. and Yusoff, N. (2024) 98 fs High Energy Stable Hybrid Mode-Locked Nonlinear Polarization Rotation With CuO-Doped ZnO Saturable Absorber. IEEE Journal of Quantum Electronics, 60 (4). pp. 1-11. ISSN 0018-9197, DOI https://doi.org/10.1109/JQE.2024.3396425.

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Official URL: https://doi.org/10.1109/JQE.2024.3396425

Abstract

The investigation of a fiber laser utilizing ytterbium-doped hybrid passively mode-locking, featuring a novel copper oxide-doped zinc oxide saturable absorber (CuO-ZnO SA), has been realized. The hybrid mode-locked (hybrid-ML) fiber laser integrates the nonlinear polarization rotation (NPR) technology with the CuO-ZnO-SA, producing remarkable characteristics with a central wavelength of 1045 nm, a 3-dB bandwidth spanning 18.26 nm, an ultra-short pulse width of 98 fs, a repetition frequency of 1.96 MHz, and an impressive signal-to-noise ratio of 51 dB. This research demonstrates a substantial enhancement in laser performance compared to NPR mode-locking alone. Notably, the pulse width experiences a significant compression, reduced by 39 fs, while the signal-to-noise ratio sees a noteworthy improvement of 11 dB. Furthermore, when contrasted with passively mode-locked pulse lasers relying solely on NPR technology, the hybrid passively mode-locked fiber laser attains a substantial reduction in output pulse width, surpassing 98 fs. These findings show the significant potential of the hybrid-ML system in the realm of ultrafast lasers, offering a promising avenue for future applications in cutting-edge research and technology.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia, through Higher Education Center of Excellence (HiCoE)
Uncontrolled Keywords: Laser mode locking; Fiber lasers; Optical fibers; Zinc oxide; Optical fiber polarization; Laser stability; II-VI semiconductor materials; Femtosecond pulses; high energy; hybrid mode-locking; saturable absorber
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Sep 2024 02:46
Last Modified: 17 Sep 2024 02:46
URI: http://eprints.um.edu.my/id/eprint/45107

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