Highly stable mode-locked fiber laser with graphene oxide-coated side-polished D-shaped fiber saturable absorber

Harith Ahmad and Soltani, S. and Kishan Thambiratnam and Moh. Yasin (2018) Highly stable mode-locked fiber laser with graphene oxide-coated side-polished D-shaped fiber saturable absorber. Optical Engineering, 57 (5).

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

A highly stable mode-lock fiber laser with a thin film coating of graphene oxide (GO) nanoparticles on a D-shaped fiber is proposed and demonstrated. The GO-coated D-shaped fiber, which serves as the cavity's saturable absorber (SA), is fabricated by drop-casting GO nanoparticles on the smooth and consistently polished area of the D-shaped fiber made using a disk-polishing machine. Mode-locking is induced through the interaction of the evanescent field from the D-shaped fiber and GO nanoparticle layer. The cavity has a length of 12.5 m with a fundamental frequency of 16.5 MHz and operates in the anomalous dispersion regime. Stable soliton modelocking is obtained above a pump power of 76.6 mW, with a central lasing wavelength of 1555.7 nm and welldefined Kelly's sidebands. The generated pulses have a repetition rate of 16.5 MHz and pulse duration of 1.18 ps over a pump power range of 76.6 to 280.5 mW, with only minor fluctuations observed. A signal-to-noise ratio of 58.3 dB is computed, indicating a highly stable output. The proposed SA fabrication technique provides a simple, cost-effective, and consistent method of generating mode-locked pulses in fiber lasers. © 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).

Item Type: Article
Additional Information: cited By 7
Uncontrolled Keywords: Cost effectiveness; Evanescent fields; Fiber lasers; Fibers; Graphene; Graphene oxide; Locks (fasteners); Nanoparticles; Optical pumping; Polishing; Pulse repetition rate; Saturable absorbers; Signal to noise ratio, Anomalous dispersion; Fabrication technique; Fundamental frequencies; Lasing wavelength; Nanoparticle layers; Repetition rate; Side-polished fiber; Thin-film coatings, Mode-locked fiber lasers
Divisions: Artikel Ilmiah > SCOPUS INDEXED JOURNAL
Creators:
CreatorsNIM
Harith AhmadUNSPECIFIED
Soltani, S.UNSPECIFIED
Kishan ThambiratnamUNSPECIFIED
Moh. YasinUNSPECIFIED
Depositing User: Ika Rudianto
Last Modified: 31 Dec 2020 14:24
URI: http://repository.unair.ac.id/id/eprint/102372
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