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Experimental Observation of Bright and Dark Solitons mode-Locked with Zirconia-Based Erbium-Doped Fiber Laser

Chinese Physics Letters 2018年第2期35卷 25-28页

作者： a.m.markom S.J.Tan H.Haris m.C.Paul A.Dhar S.Das S.W.Harun Faculty of Electrical Engineering Universiti Teknologi MARAMasai 81750Malaysia School of Engineering KDU University CollegeUtropolis GlenmarieShah Alam 40150Malaysia Department of Electrical Engineering University of MalayaKuala Lumpur 50603Malaysia Fiber Optics and Photonics Division CSIR-Central Glass and Ceramic Research InstituteKolkata 700032India

We demonstrate the generation of dark and bright solitons with our homemade zirconia-based erbium-doped fiber and graphene oxide（GO） saturable absorber in anomalous dispersion *** GO is fabricated using an abridged Hummer＇s method,which is combined with polyethylene oxide to produce a composite *** film is sandwiched between two optical ferrules and embedded in the laser cavity to enhance its birefringence and *** self-starting bright soliton is easily generated at pump power of 78 mW with the whole length cavity of 14.7 *** laser produces the bright pulse train with repetition rate,pulse width,pulse energy and central wavelength being 13.9 mHz,0.6 ps,2.74 p J and 1577.46 nm,***,by adding the 10 m of single mode fiber into the laser cavity,dark soliton pulse is *** the formation of dark pulse train,the measured repetition rate,pulse width,pulse energy and central wavelength are 8.3 mHz,20 ns and 4.98 p J and1596.82 nm,*** pulses operate in the anomalous region.

关键词： Zr EDF Experimental Observation of Bright and Dark Solitons mode-Locked with Zirconia-Based Erbium-Doped Fiber Laser

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Q-switched pulse generation with lutetium oxide absorber

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Optoelectronics Letters 2023年第3期19卷 129-133页

作者： Nurul Athirah mohamad Abdul Ghafar Nur Farhanah Zulkipli Rabi’Atul A.mat Yusoff Arni munirah markom moh Yasin Sulaiman Wadi Harun School of Electrical Engineering College of EngineeringUniversiti Teknologi MARAShah Alam 40450Malaysia Department of Physics Faculty of Science and TechnologyAirlangga UniversitySurabayaIndonesia Department of Physics Faculty of ScienceUniversiti Teknologi MalaysiaSkudaiMalaysia Photonics Engineering Laboratory Department of Electrical EngineeringFaculty of EngineeringUniversity of MalayaKuala LumpurMalaysia

A lutetium oxide(Lu_(2)O_(3)) film was proposed and demonstrated for Q-switching operation at 1.55 μm region. It was obtained by solving Lu_(2)O_(3) powder into isopropyl alcohol and mixing the solution into polyvinyl alcohol(PVA) solution to form a composite precursor solution via stirring, sonicating, and centrifuging processes. The thin film was formed through a drop and dry process and a small piece of this film was integrated into erbium-doped fiber laser(EDFL) cavity to modulate the cavity loss via Q-switching mechanism for pulse generation. The Q-switched laser operated at 1 565 nm with the repetition rate of 75.26 k Hz as the pump power was raised to the maximum value of 145.83 m W. The maximum pulse energy of 41.85 n J was recorded at 145.83 m W pump power. The mode-locked pulse operated at 968.5 k Hz with a pulse width of 510 ns was also realized in an extended EDFL cavity. The simple and cost-effective laser should have various applications including material processing, sensing and biomedical areas.

关键词： switched pulse pump

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