Graphene-Molybdenum Disulphide Chitin Nanocomposite Based Passive Q-switcher

Siti Nabilah Mohd Halim, Husni Hani Jameela Sapingi, Mohamad Fariz Mohamad Taib, Fauzan Ahmad


A simple fabrication of graphene-MoS2 nanocomposite, as well as individual graphene and molybdenum disulphide (MoS2) film has been done through a liquid phase exfoliation method using chitin as a binder. All of the developed films are integrated as a passive Q-switcher in an Erbium doped fiber laser. The graphene-MoS2 nanocomposite based passive Q-switcher is generated by a pulsed fiber laser with the shortest width of 1.63 µs and the highest signal to noise ratio of 51.01 dB. The graphene-MoS2 nanocomposite films show a better saturable absorption response compared to an individual graphene-chitin and MoS2-chitin based passive Q-switcher.

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Graphene; Molybdenum Disulphide; Chitin

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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ISSN: 2080-2242