Graphene-polyvinyl alcohol polymer based saturable absorption at 2000 nm region
A graphene-polyvinyl alcohol (PVA) composite saturable absorption is demonstrated at 2000 nm region. Graphene suspension is produced using low-cost electrochemical exfoliation process. The suspension is mixed with PVA host polymer in 1:1 ratio and left evaporated at room temperature which finally pr...
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Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Institute of Advanced Engineering and Science
2022
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Subjects: | |
Online Access: | http://eprints.utm.my/id/eprint/99436/1/MohdHaniffIbrahim2022_GraphenePolyvinylAlcoholPolymerBasedSaturableAbsorption.pdf http://eprints.utm.my/id/eprint/99436/ http://dx.doi.org/10.11591/ijeecs.v27.i2.pp701-708 |
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Summary: | A graphene-polyvinyl alcohol (PVA) composite saturable absorption is demonstrated at 2000 nm region. Graphene suspension is produced using low-cost electrochemical exfoliation process. The suspension is mixed with PVA host polymer in 1:1 ratio and left evaporated at room temperature which finally produced graphene-PVA thin film. Thulium doped fiber (TDF) gain medium has been shown to produce a stable Q-switched pulse with a highest repetition rate of 54 kHz, a short pulse duration of 2.89 µs, a maximum peak power of 16 mW, and an estimated maximum pulse energy of 49 nJ. Apparently, at 2000 nm region, superior performances of graphene-PVA composite have been recorded which was largely contributed by meticulous composite preparation and homogenous mixture with PVA host. |
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