| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Graphene Oxide-Based Q-Switched Erbium-Doped Fiber Laser |
| Y. K. Yap1**, N. M. Huang2, S. W. Harun1,3,4, H. Ahmad1,4 |
1Photonics Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
2Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
3Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
4Nanotechnology Research Alliance, Universiti Teknologi Malaysia, 81310 UTM, Johore Bahru, Johor Darul Takzim, Malaysia
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Y. K. Yap, N. M. Huang, S. W. Harun et al 2013 Chin. Phys. Lett. 30 024208 |
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Abstract We demonstrate a pulsed ring erbium-doped fiber laser based on graphene oxide (GO), employing a simplified Hummer's method to synthesize the GO via chemical oxidation of graphite flakes at room temperature. By dipping a fiber ferrule end face onto the GO suspension, GO is successfully coated onto the end face, making it a simple saturable absorption device. A stable Q-switched pulsed fiber laser is achieved with a low pump threshold of 9.5 mW at 980 nm. The pulse repetition rate ranges from 16.0 to 57.0 kHz. The pulse width and the pulse energy are studied and discussed.
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Received: 14 August 2012
Published: 02 March 2013
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