Ahmad, Harith and Soltani, Soroush and Ismail, Mohammad Faizal and Thambiratnam, Kavintheran and Chong, Wu Yi and Yasin, Moh (2018) Characterization of light-control-light system using graphene oxide coated optical waveguide. Laser Physics, 28 (7). 076001. ISSN 1054-660X, DOI https://doi.org/10.1088/1555-6611/aabd25.
Full text not available from this repository.Abstract
An optical waveguide was coated with graphene oxide (GO) using the drop-casting technique to increase the interaction between the waveguide's evanescent field and the GO layer. Subsequently, a 1550 nm tunable laser source and 980 nm pump laser is used to study the potential of the GO-film to control the flow of light through the waveguide by altering the state of the waveguide between transparent (ON) and opaque (OFF). The GO layer has a thickness of 0.40 μm and allows a 1550 nm signal with a peak power of -7.0 dBm and average output power of 0 dBm to pass through at a maximum pump power of 60 mW. The waveguide has a responsivity of ∼0.1 dB mW-1, with the time to switch between the ON and OFF states being about 3 ms.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, (Malaysia) under the grant LRGS (2015)/NGOD/UM/KPT, University of Malaya under the grants RU 001–2017 and RP 029A—15 AFR |
| Uncontrolled Keywords: | GO-coated optical waveguide; graphene oxide; light-control-light characteristics; optical modulator; transmitted optical power |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 07 Oct 2019 02:14 |
| Last Modified: | 07 Oct 2019 02:14 |
| URI: | http://eprints.um.edu.my/id/eprint/22668 |
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