Experimental and Numerical Comparison Q-Switched Fiber Laser Generation using Graphene as Saturable Absorber

We demonstrated the comparison experimentally and numerically a compact Q-switched erbium-doped fiber (EDF) laser based on graphene as a saturable absorber (SA). By optically driven deposition of graphene on a fiber core, the SA is constructed and inserted into a diode-pumped EDF laser cavity. Lasin...

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Bibliographic Details
Main Authors: Awang, Noor Azura, Aziz, Nor Syuhada, Azmi, Atiqah Nabieha, Hadi, Fatin Shaqira, Zakaria, Zahariah
Format: Conference Proceeding
Language:English
Subjects:
Absorbers
Computer simulation
Doped fibers
Erbium
Fiber lasers
Graphene
Laser applications
Lasers
Noise levels
Pulse duration
Pulse repetition rate
Q switched lasers
Radio frequency
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Summary:We demonstrated the comparison experimentally and numerically a compact Q-switched erbium-doped fiber (EDF) laser based on graphene as a saturable absorber (SA). By optically driven deposition of graphene on a fiber core, the SA is constructed and inserted into a diode-pumped EDF laser cavity. Lasing in CW region starts at 10 mW, whereas stable self-starting Q-switching with a central wavelength of 1530 nm begins at 18 mW. In this paper, at 35 mW , the maximum pulse energy reaches at 2 μJ with pulse repetition rate of 1 MHz and the narrowest pulse width is around 10 μs is obtained. The stability of the pulse is verified from the radio-frequency (RF) spectrum with a measured signal-to-noise ratio (SNR) of 48 dB. In this study, the design is compared with the simulation using the Optisystem software. The output power of the experimental study is also compared with the simulation to examine the performance.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201815001009