Dual-wavelength Q-switched erbium-doped fiber laser using an SMF-MMF-SMF structure and graphene oxide

S. F. S. M. Noor; Ahmad B. A.; A. Rosol A. H.; Ahmad H.; Apsari R.; Harun S. W.

doi:10.1007/s11801-022-2097-3

Journals >Optoelectronics Letters >Volume 18 >Issue 11 >Page 668 > Article

Optoelectronics Letters
Vol. 18, Issue 11, 668 (2022)

Dual-wavelength Q-switched erbium-doped fiber laser using an SMF-MMF-SMF structure and graphene oxide

S. F. S. M. Noor ¹, Ahmad B. A.², A. Rosol A. H.^3、4, Ahmad H.⁵, Apsari R.^4、6, and Harun S. W.^3、*

Author Affiliations

¹Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia

²Department of Communication Engineering, Al-Ma'moon University College, Baghdad 700921, Iraq

³Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia

⁴Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Airlangga University, Surabaya, Indonesia

⁵Photonics Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia

⁶Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya, Indonesia

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DOI: 10.1007/s11801-022-2097-3 Cite this Article

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, 18(11): 668 Copy Citation Text

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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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