| S. F. S. M. Noor,B. A. Ahmad,A. H. A. Rosol,H. Ahmad,R. Apsari,S. W. Harun.Dual-wavelength Q-switched erbium-doped fiber laser using an SMF-MMF-SMF structure and graphene oxide[J].Optoelectronics Letters,2022,(11):668-672 |
| Dual-wavelength Q-switched erbium-doped fiber laser using an SMF-MMF-SMF structure and graphene oxide |
| Author Name | Affiliation | | S. F. S. M. Noor | Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia | | B. A. Ahmad | Department of Communication Engineering, Al-Ma'moon University College, Baghdad 700921, Iraq | | A. H. A. Rosol | Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Airlangga University, Surabaya, Indonesia | | H. Ahmad | Photonics Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia | | R. Apsari | Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Airlangga University, Surabaya, Indonesia
Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya, Indonesia | | S. W. Harun | Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia |
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| Abstract: |
| We have successfully demonstrated a stable dual-wavelength Q-switched erbium-doped fiber laser (EDFL) using a single mode fiber-multimode fiber-single mode fiber (SMF-MMF-SMF) structure-based filter. Using a graphene oxide (GO) saturable absorber (SA) to modulate the cavity loss, passive Q-switching of the dual-wavelength laser is achieved at 1 549.6 nm and 1 558.6 nm. The laser recorded the shortest pulse width of about 2.9 μs, the maximum pulse repetition rate of 65.27 kHz and the maximum average output power of 0.99 mW at pump power of 225.1 mW. The present laser has the maximum pulse energy of 15.17 nJ. A 2 SMF-MMF-SMF structure has been experimentally confirmed to be very promising as a wavelength filter. |
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