FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Molybdenum Disulphide Tape Saturable Absorber for Mode-Locked Double-Clad Ytterbium-Doped All-Fiber Laser Generation |
M. F. M. Rusdi1, A. A. Latiff2, E. Hanafi1, M. B. H. Mahyuddin1, H. Shamsudin2, K. Dimyati1, S. W. Harun1,2** |
1Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia 2Photonics Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia
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Cite this article: |
M. F. M. Rusdi, A. A. Latiff, E. Hanafi et al 2016 Chin. Phys. Lett. 33 114201 |
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Abstract We demonstrate the generation of passive mode-locked double-clad ytterbium-doped fiber laser operating in a 1-micron region. We prepare the saturable absorber from commercial crystal of molybdenum disulphide (MoS$_{2}$). Without chemical procedure, the MoS$_{2}$ is mechanically exfoliated by using a clear scotch tape. A few layers of MoS$_{2}$ flakes are obtained on the tape. Then, a piece of $1\times1$ mm tape containing MoS$_{2}$ thin flakes is inserted between two fiber ferrules and is integrated in the ring cavity. Stable mode-locking operation is attained at 1090 nm with a repetition rate of 13.2 MHz. Our mode-locked laser has a maximum output power of 20 mW with 1.48 nJ pulse energy. These results validate that the MoS$_{2}$ has a broad operating wavelength which covers the 1-micron region, and it is also able to work in a high-power cavity.
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Received: 14 August 2016
Published: 28 November 2016
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Fund: Supported by the PPP Grant Scheme of University of Malaya under Grant No PG098-2014B. |
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