Cu2Te-PVA as saturable absorber for generating Q-switched erbium-doped fiber laser

Ahmad, Harith and Azmy, Nur Fatini and Reduan, Siti Aisyah and Yusoff, Norazriena and Kadir, Zamzuri Abdul (2021) Cu2Te-PVA as saturable absorber for generating Q-switched erbium-doped fiber laser. Optical and Quantum Electronics, 53 (4). ISSN 0306-8919, DOI

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A passively Q-switched erbium-doped fiber laser (EDFL) using copper telluride-polyvinyl alcohol (Cu2Te-PVA) thin film as saturable absorber (SA) was proposed and demonstrated. The generated Q-switched pulses could be tuned over a tuning range of 44 nm from 1530 to 1574 nm, with the addition of a tunable bandpass filter into the C-band laser cavity. The pump power of 130.1 to 221.0 mW was used to observe the output pulses, which had repetition rates from 51.3 to 61.7 kHz, with a minimum pulse width of around 1.84 mu s and highest pulse energy of 7 nJ. The generated pulses were stable with a constant signal to noise ratio value of around 51 dB when tested under continuous operation over a period of 60 min. To the best of our knowledge, this is the first demonstration of Q-switched pulses induced by a Cu2Te-PVA based SA in an EDFL.

Item Type: Article
Funders: Universiti Malaya (RK 021-2019) (TOP100PRC) (RU002-2020), Ministry of Education, Malaysia
Uncontrolled Keywords: Q-switched fiber laser; Copper telluride (Cu2Te); Saturable absorber; Wavelength tunable laser
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science
Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 08 Apr 2022 02:36
Last Modified: 08 Apr 2022 02:36

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