Generation of dual-wavelength ytterbium-doped fibre laser using a highly nonlinear fibre

Salim, M. A. M.; Azzuhri, Saaidal Razalli; Khudus, Muhammad Imran Mustafa Abdul; Razak, M.Z.A.; Nasir, Nazri; Amiri, Iraj Sadegh

doi:10.1088/1555-6611/aadc51

Cited by 13 publications

(4 citation statements)

References 22 publications

(23 reference statements)

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“…With this cross-section, the corresponding self-phase modulation coefficient γ is 1.63 × 10 3 W −1 m −1 , which is several orders of magnitude larger than in highly-nonlinear fibers, cf. [25][26][27][28].…”

Section: Enz Materialsmentioning

confidence: 99%

Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength

Wu¹,

Malomed²,

Fu³

et al. 2019

Opt. Express

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Dynamics of femtosecond pulses with the telecom carrier wavelength is investigated numerically in a subwavelength layer of an indium tin oxide (ITO) epsilon-near-zero (ENZ) material with high dispersion and high nonlinearity. Due to the subwavelength thickness of the ITO ENZ material, and the fact that the pulse's propagation time is shorter than its temporal width, multiple reflections give rise to self-interaction in both spectral and temporal domains, especially at wavelengths longer than the ENZ point, at which the reflections are significantly stronger. A larger absolute value of the pulse's chirp strongly affects the self-interaction by redistributing energy between wavelengths, while the sign of the chirp affects the interaction in the temporal domain. It is also found that, when two identical pulses are launched simultaneously from both ends, a subwavelength counterpart of a standing-wave state can be established. It shows robust energy localization in the middle of the sample, in terms of both the spectral and temporal intensity distributions.

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Section: Enz Materialsmentioning

confidence: 99%

Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength

Wu¹,

Malomed²,

Fu³

et al. 2019

Opt. Express

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“…In this paper, we have achieved Q-switched dual-wavelength by employing MoSe2 SA in YDFL. Dual-tapered microfiber [15] was used as an optical filter to generate dual-wavelengths laser [16,17] centered at 1035.8 and 1040.2nm with wavelength interval and repetition rates of 4.4 nm and 13.5 to 54.3 kHz respectively.…”

Section: Introductionmentioning

confidence: 99%

Dual-tapered Mach Zehnder Interferometer for Dual-wavelength Q-Switched YDFL using Molybdenum Diselenide

Salim

Ahmad²,

Bakhtiar³

et al. 2023

J. Phys.: Conf. Ser.

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A dual-wavelength Q-switched YDFL by utilizing MoSe2 thin film was successfully achieved in cavity ring. The dual synchronous wavelength output spectrum centered at 1035.8nm to 1040.2nm was achieved with repetition rate of 15.3 kHz to 35.2 kHz. Moreover, the maximum pulse energy was 2.8nJ and minimum pulse width was 1.8µs. In this paper, MoSe2 thin film capabilities as saturable absorber in 1-micron region was successfully achieved. Thus pave a new insight of transition metal chalcogenides (TMD) based photonics device.

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“…They are one of the most extensively studied materials due to their outstanding electrical, optical and mechanical properties. Based on optical materials such as molybdenum selenide (MoSe2) from the family of metal chalcogenides, several reports presented for thermoelectric, photodetector pulse-laser and photonics applications [2][3][4][5][6], because of its remarkable optoelectronic properties. According to Beal et.…”

Section: Introductionmentioning

confidence: 99%

2D Materials (WS2, MoS2, MoSe2) Enhanced Polyacrylamide Gels for Multifunctional Applications

Uysal

Nayır

Açba

et al. 2022

Gels

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Multifunctional polymer composite gels have attracted attention because of their high thermal stability, conductivity, mechanical properties, and fast optical response. To enable the simultaneous incorporation of all these different functions into composite gels, the best doping material alternatives are two-dimensional (2D) materials, especially transition metal dichalcogenides (TMD), which have been used in so many applications recently, such as energy storage units, opto-electronic devices and catalysis. They have the capacity to regulate optical, electronic and mechanical properties of basic molecular hydrogels when incorporated into them. In this study, 2D materials (WS2, MoS2 and MoSe2)-doped polyacrylamide (PAAm) gels were prepared via the free radical crosslinking copolymerization technique at room temperature. The gelation process and amount of the gels were investigated depending on the optical properties and band gap energies. Band gap energies of composite gels containing different amounts of TMD were calculated and found to be in the range of 2.48–2.84 eV, which is the characteristic band gap energy range of promising semiconductors. Our results revealed that the microgel growth mechanism and gel point of PAAm composite incorporated with 2D materials can be significantly tailored by the amount of 2D materials. Furthermore, tunable band gap energies of these composite gels are crucial for many applications such as biosensors, cartilage repair, drug delivery, tissue regeneration, wound dressing. Therefore, our study will contribute to the understanding of the correlation between the optical and electronic properties of such composite gels and will help to increase the usage areas so as to obtain multifunctional composite gels.

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Generation of dual-wavelength ytterbium-doped fibre laser using a highly nonlinear fibre

Cited by 13 publications

References 22 publications

Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength

Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength

Dual-tapered Mach Zehnder Interferometer for Dual-wavelength Q-Switched YDFL using Molybdenum Diselenide

2D Materials (WS2, MoS2, MoSe2) Enhanced Polyacrylamide Gels for Multifunctional Applications

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