Titania-carbon nanocomposite as a saturable absorber for generation passively ytterbium-mode locked pulses

Abdalhadi, Ali H.; Salman, Ansam M.; Faris, Rawaa A.; Al‐Janabi, Abdulhadi

doi:10.1016/j.optmat.2020.110728

Cited by 17 publications

(2 citation statements)

References 63 publications

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“…where Δ∅ 0 is the phase shift, K is the wavenumber (2π/λ), I 0 refers to the laser beam intensity at the focusing point, and L ef is the efective length of the propagation light inside the specimen, L eff � 1 − e (− Lα) /α [45].…”

Section: Characterisation Ofmentioning

confidence: 99%

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

Jasem,

Abdullah,

Jalal Abdulrazzaq

2023

Journal of Nanotechnology

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This study experimentally demonstrates the operation of a dual-wavelength passively Q-switched erbium-doped fiber laser that incorporates CaCO3 nanoparticles as a saturable absorber (SA). The SA was prepared by using the drop-casting method, wherein CaCO3 nanoparticles were embedded in a polyvinyl alcohol (PVA) polymer to form a CaCO3/PVA film SA. The film was integrated into a ring laser cavity with a 976 nm pump to generate Q-switched pulses. The properties of the SA were examined experimentally, and its modulation depth is approximately 47%. As the pump power increased from 180 mW to 270 mW and the pulse repetition rate increased from 12.67 kHz to 21.3 kHz, the corresponding pulse width decreased from 35.27 μs to 18.74 μs. The signal-to-noise ratio was approximately 25 dB, highlighting the laser’s stability. The results indicate that the proposed CaCO3/PVA SA is suitable for realizing portable Q-switched lasers.

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Section: Characterisation Ofmentioning

confidence: 99%

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

Jasem,

Abdullah,

Jalal Abdulrazzaq

2023

Journal of Nanotechnology

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“…Saturable absorbers (SAs), one of the passive techniques, are nonlinear optical elements and the most common device to generate mode-locked pulses. There are several kinds of SAs that have been widely studied, such as semiconductor saturable absorber mirrors (SESAMs) [33][34][35] and carbon nanotubes (CNTs) [36][37][38]. SESAMs are widely used in most commercial fiber laser systems.…”

Section: Introductionmentioning

confidence: 99%

L-band femtosecond fiber laser with Cu₂Te-PVA thin film

Ahmad¹,

Kahar²,

Norisham³

et al. 2021

Laser Phys. Lett.

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For the first time, this research proposed a copper telluride (Cu2Te)-polyvinyl alcohol thin film as a saturable absorber (SA) in an erbium-doped fiber laser (EDFL) operating in the long-wavelength band (L-band). The nonlinear optical absorption measurement of Cu2Te thin film revealed a saturation intensity of 3.26 kW cm−2 and a modulation depth of 2.7%. Furthermore, the mode-locked pulse was successfully generated by integrating a Cu2Te thin film into the L-band cavity at a threshold pump power of 135.61 mW with a center wavelength and pulse duration of 1565.48 nm and 770 fs, respectively. When observing the output mode-locked pulse, the pump power for the EDFL ranged from 135.61 mW to 201.28 mW, with the fundamental mode having a repetition rate 10.28 MHz. Furthermore, the magnitude of the signal-to-noise ratio was approximately 61.3 dB, indicating that the laser was stable with no significant fluctuations during the stability test. Overall, the findings showed that Cu2Te thin film has an excellent output and a promising candidate for an SA, implying that it could have a lot of potentials in pulsed laser application.

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Passively Q-switched erbium-doped fiber laser based on two-dimensional boron carbide nanoparticles as saturable absorber

Jasem,

Abdullah,

Abdulrazzaq

2024

Opt Quant Electron

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Titania-carbon nanocomposite as a saturable absorber for generation passively ytterbium-mode locked pulses

Cited by 17 publications

References 63 publications

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

L-band femtosecond fiber laser with Cu₂Te-PVA thin film

Passively Q-switched erbium-doped fiber laser based on two-dimensional boron carbide nanoparticles as saturable absorber

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Titania-carbon nanocomposite as a saturable absorber for generation passively ytterbium-mode locked pulses

Cited by 17 publications

References 63 publications

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

Dual-Wavelength Passively Q-Switched Erbium-Doped Fiber Laser Incorporating Calcium Carbonate Nanoparticles as Saturable Absorber

L-band femtosecond fiber laser with Cu2Te-PVA thin film

Passively Q-switched erbium-doped fiber laser based on two-dimensional boron carbide nanoparticles as saturable absorber

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Product

Resources

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L-band femtosecond fiber laser with Cu₂Te-PVA thin film