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Investigation of Q-switched and mode-locked erbium-doped fiber laser using graphene oxide-saturable absorber

Hamida, Belal Ahmed and Eltaif, Tawfig and Omer, Mahamat and Khan, Sheroz (2020) Investigation of Q-switched and mode-locked erbium-doped fiber laser using graphene oxide-saturable absorber. In: 14th IEEE Malaysia International Conference on Communication, MICC 2019; Selangor; Malaysia, 2nd - 4th December 2019, Selangor, Malaysia.

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This paper experimentally investigates a simple configuration of an erbium-doped fiber laser (EDFL) cavity to generate mode-locked and Q-switched pulses utilize graphene oxide as saturable absorber (GO-SA). The GO-SA chip is a chip placed as a sandwich between two fiber ferrules and incorporates a ring laser cavity to generate a pulse train. Results indicate that the cavity of passive Q-switching EDFL is capable of providing pulses at 1532nm with a pulse width within a range of 5.32μs to 2.6μs, a repetition rate of 59.5kHz to 71.74kHz, a pulse energy of 364.64nJ to 668.95nJ, and an output power ranging from 0.062mW to 0.136mW, when the configuration is pumped by a 980nm laser diode, the power of which gradually increases from 21.7mW to 47.9mW. The output of the GO-SA needs to be connected to 200m of a single-mode fiber (SMF) to generate mode-locked pulses at 1559nm when the pump power is 157.6mW. As a result, an output power of 1.29mW is delivered with a repetition rate of 1.002MHz.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 7222/82426
Uncontrolled Keywords: erbium-doped fiber laser (EDFL), Q-switched, graphene oxide as saturable absorber (GO-SA), mode-locked erbium-doped
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Belal Ahmed Hamida
Date Deposited: 25 Aug 2020 17:02
Last Modified: 25 Aug 2020 17:02
URI: http://irep.iium.edu.my/id/eprint/82426

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