Nickel oxide film saturable absorber for mode-locking operation at 1.55-micron region

Harun, Sulaiman Wadi and Nawi, B.M. and Latiff, Anas Abdul (2018) Nickel oxide film saturable absorber for mode-locking operation at 1.55-micron region. Journal of Nonlinear Optical Physics & Materials, 27 (02). p. 1850020. ISSN 0218-8635

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Official URL: https://doi.org/10.1142/S0218863518500200

Abstract

The generation of mode-locking pulse train in Erbium-doped fiber laser (EDFL) cavity was demonstrated using Nickel Oxide (NiO) saturable absorber (SA). The NiO compound synthesized via sonochemical method was embedded into poly ethylene oxide (PEO) film through solution casting technique to fabricate the SA film device. A small piece of the SA film was sandwiched between two ferrules in the EDFL cavity. By adding 180m single mode fiber (SMF) in the ring cavity, a stable mode-locking pulse train operating at 1558nm with a repetition rate of 1.1MHz was achieved. At 197.5mW pump power, the proposed mode-locked EDFL has output power and pulse energy of 3.35mW and 3.36nJ, respectively. This study may well be the first demonstration of mode-locked EDFL using NiO-based SA. The result indicates that NiO is the promising material for ultrafast photonic applications.

Item Type: Article
Uncontrolled Keywords: Fiber lasers; mode-locked lasers; passive saturable absorber; thin films
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 19 Aug 2019 01:15
Last Modified: 19 Aug 2019 01:15
URI: http://eprints.um.edu.my/id/eprint/21941

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