Nanosecond mode-locked erbium doped fiber laser based on zinc oxide thin film saturable absorber

Al-Ani, Ibrahim; Ahmad, Bilal; Ahmed, M.H.M.; Latiff, Anas Abdul; Al-Masoodi, Ahmed Hasan Hamood; Lokman, Muhammad Quisar; Harun, Sulaiman Wadi

doi:10.1007/s12648-018-1251-z

Cited by 30 publications

(8 citation statements)

References 35 publications

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“…The large optical nonlinearities of metal and semiconducting nanoparticles are undoubtedly a key advantage for their implementation in photonic devices [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ]. To date, immense research efforts have been devoted to the investigation of the exceptional saturable absorption (SA) properties (nonlinear absorption coefficient β, modulation depth α s and saturable intensity I s ) of low-dimensional nanostructures under ns laser radiation, demonstrating their great prospects for the generation of short laser pulses in Q-switched laser systems [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Other published research articles, primarily focused on the nonlinear optical (NLO) absorption of semiconducting nanoparticles, have revealed their high optical limiting (OL) efficiency [ 33 , 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, they could be used for OL-related applications, such as the protection of human retinal and sensitive optical devices from an intense laser beam and in several technologically important fields, ranging from medical applications, optical imaging and telecommunications to laser material processing and defense systems [ 39 , 40 , 41 , 42 ]. Although numerous studies have appeared so far discussing the NLO response (NLO absorption and refraction) [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 43 , 44 , 45 ] and OL efficiency [ 33 , 34 , 35 , 36 , 37 , 38 ] of various metal and semiconducting nanoparticles, to the best of our knowledge, related studies on Ir-based nanohybrids are rather scarce, narrowing their practical application in photonics and optoelectronics.…”

Section: Introductionmentioning

confidence: 99%

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Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties

et al. 2023

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The present work reports on the synthesis and characterization of iridium (Ir)-based nanohybrids with variable chemical compositions. More specifically, highly stable polyvinylpyrrolidone (PVP) nanohybrids of the PVP-IrO2 and PVP-Ir/IrO2 types, as well as non-coated Ir/IrO2 nanoparticles, are synthesized using different synthetic protocols and characterized in terms of their chemical composition and morphology via X-ray photoelectron spectroscopy (XPS) and scanning transmission electron microscopy (STEM), respectively. Furthermore, their nonlinear optical (NLO) response and optical limiting (OL) efficiency are studied by means of the Z-scan technique, employing 4 ns laser pulses at 532 and 1064 nm. The results demonstrate that the PVP-Ir/IrO2 and Ir/IrO2 systems exhibit exceptional OL performance, while PVP-IrO2 presents very strong saturable absorption (SA) behavior, indicating that the present Ir-based nanohybrids could be strong competitors to other nanostructured materials for photonic and optoelectronic applications. In addition, the findings denote that the variation in the content of IrO2 nanoparticles by using different synthetic pathways significantly affects the NLO response of the studied Ir-based nanohybrids, suggesting that the choice of the appropriate synthetic method could lead to tailor-made NLO properties for specific applications in photonics and optoelectronics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties

et al. 2023

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“…Thus, it confirms that the achieved mode-locked laser operated at a nanosecond pulse regime, which can be easily observed on the oscilloscope. The nanosecond pulse width obtained is much shorter as compared to previous work based on zinc oxide as a SA, which achieved a 400 ns pulse width [39]. Figure 6(c) shows the frequency spectrum of mode-locked operation at 167.5 mW pump power with a 100 MHz frequency span.…”

Section: Resultsmentioning

confidence: 83%

Aluminium zinc oxide as a saturable absorber for passively Q-switched and mode-locked erbium-doped fiber laser

Nizamani¹,

Jafry²,

Salam³

et al. 2021

Laser Phys.

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Transparent conductive oxides (TCOs) are widely integrated in the field of optoelectronics since they are optically transparent and electrically conductive at the same time. Indium tin oxide (ITO) is a well-developed TCO, but due to its high cost, aluminum zinc oxide (AZO) is now emerging as a promising low-cost replacement for ITO. This work reports on AZO thin film prepared with polyvinyl alcohol (PVA) as a host material. The AZO–PVA thin film was incorporated into an erbium-doped fiber laser (EDFL) as a saturable absorber for the first time. Both Q-switched and nanosecond pulse mode-locked operation were experimentally achieved. The Q-switched EDFL operated at the center wavelength of 1559.6 nm, which had the shortest pulse width of 2.2 µs, the maximum repetition rate of 86 kHz and the highest pulse energy of 47.3 nJ. The mode-locked was achieved at the center wavelength of 1560.4 nm.

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“…The operation of mode-locking in 1, 1.5, and 2 µm wavelength regions has been achieved by the utilization of ytterbium-, erbium-, and thulium-doped fibers, respectively [8,9]. Among these lasers, the ytterbium-doped fiber laser (YDFL) operating in the 1 µm wavelength region has gained much interest in recent years for various communications and sensing applications [10,11].…”

Section: Introductionmentioning

confidence: 99%

Mode-locked ytterbium-doped fiber laser with zinc phthalocyanine thin film saturable absorber

Soboh

Al-Masoodi²,

Erman

et al. 2022

Front. Optoelectron.

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A stable mode-locked laser was demonstrated using a newly developed zinc phthalocyanine (ZnPc) thin film as passive saturable absorber (SA) in ytterbium-doped fiber laser (YDFL). The ZnPc thin film was obtained using a casting method and then inserted between the two fiber ferrules of a YDFL ring cavity to generate mode-locked pulses. The resulting pulsed laser operated at a wavelength of 1034.5 nm having a repetition rate of 3.3 MHz. At pump power of 277 mW, the maximum output power and pulse energy are achieved at 4.92 mW and 1.36 nJ, respectively. ZnPc has a high chemical and photochemical stability, and its significance for use as a potential SA in a mode-locked laser is reported in this work. Graphical Abstract

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Nanosecond mode-locked erbium doped fiber laser based on zinc oxide thin film saturable absorber

Cited by 30 publications

References 35 publications

Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties

Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties

Aluminium zinc oxide as a saturable absorber for passively Q-switched and mode-locked erbium-doped fiber laser

Mode-locked ytterbium-doped fiber laser with zinc phthalocyanine thin film saturable absorber

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