Nanosecond pulses generation with rose gold nanoparticles saturable absorber

Rosol, Ahmad Haziq Aiman and Latiff, Anas Abdul and Abdul Khudus, Muhammad Imran Mustafa and Harun, Sulaiman Wadi (2020) Nanosecond pulses generation with rose gold nanoparticles saturable absorber. Indian Journal of Physics, 94 (7). pp. 1079-1083. ISSN 0973-1458, DOI

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We demonstrate a mode-locked nanosecond erbium-doped fiber laser using gold nanoparticles saturable absorber. The gold nanoparticles were obtained through sodium borohydrate reduction method and made into a film structure by embedding into poly (vinyl alcohol). The laser directly produces nanosecond pulses with stable mode locking at a pump threshold of 157 mW. Resultant output pulses have central wavelength, pulse duration and repetition rate of 1561 nm, 436 ns and 1 MHz, respectively. The average output power was measured to be 6.94 mW under the pump power of 245 mW, corresponding to single pulse energy of 6.8 nJ. The experimental results show that gold nanoparticles are a promising material for ultrafast laser systems. © 2019, Indian Association for the Cultivation of Science.

Item Type: Article
Funders: University of Malaya (Grant No. BK084-2017), Universiti Teknikal Malaysia Melaka (Grant No. PJP/2018/FKEKK(1B)/S01613)
Uncontrolled Keywords: 42.55.Wd; 42.60.Gd; 42.70.Nq; Fiber lasers; Gold nanoparticles; Nanosecond pulses
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 05 Aug 2020 01:28
Last Modified: 05 Aug 2020 01:28

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