| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Mode-Locked Thulium Ytterbium Co-Doped Fiber Laser with Graphene Oxide Paper Saturable Absorber |
| S. M. Azooz1, S. W. Harun1,2**, H. Ahmad2, A. Halder3, M. C. Paul3**, M.Pal3, S. K. Bhadra3 |
1Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2Photonics Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia
3Fiber Optics and Photonics Division, Central Glass & Ceramic Research Institute, CSIR, Kolkata, India
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| Cite this article: |
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S. M. Azooz, S. W. Harun, H. Ahmad et al 2015 Chin. Phys. Lett. 32 014204 |
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Abstract A mode-locked thulium ytterbium co-doped fiber laser (TYDFL) is proposed and demonstrated by using a commercial graphene oxide (GO) paper as saturable absorber (SA). The GO paper is sandwiched between two fiber ferrules and incorporates a ring laser cavity to generate soliton pulse train operating at 1942.0 nm at a threshold multimode pump power as low as 1.8 W. The mode-locked TYDFL has a repetition rate of 22.32 MHz and the calculated pulse width of 1.1 ns. Even though the SA has a low damage threshold, the easy fabrication of GO paper should promote its potential application in ultrafast photonics.
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Published: 23 December 2014
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| PACS: |
42.55.Wd
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(Fiber lasers)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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