Q-switched pulse operation in erbium-doped fiber laser subject to zirconia (ZrO2) nanoparticles-based saturable absorber

Khalid, Umer Sayyab; Asghar, Haroon; Hameed, Hafsa; Sohail, Muhammad; Khalil, Adnan; Ahmed, Rizwan; Umar, Zeshan A.; Iqbal, Javed; Baig, M. Aslam

doi:10.1016/j.heliyon.2024.e24478

Cited by 3 publications

(1 citation statement)

References 29 publications

(28 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, when the C-AgNPs were incorporated within cavity as an SA, the EDFL emitted at 1560.09 nm. A 1.64 nm shift occurred in a peak wavelength that corresponds to the loss in the cavity due to SA [31,32]. The measured results demonstrate that a stable Q-switching was gained from a pump of 11.2 to 267 mW, however, when the pump exceeds 267 mW, a Q-switching mechanism disappears.…”

Section: Resultsmentioning

confidence: 78%

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Asghar,

Ahmed,

Umar

et al. 2024

Laser Phys.

Self Cite

View full text Add to dashboard Cite

In this work, we investigate the effect of carbon-doped silver nanoparticles on the Q-switched performance of erbium-doped fiber laser (EDFL). The carbon-doped silver nanoparticles were synthesized using a laser ablation method. The prepared nanoparticles were inserted between fiber ferrules using the adhesion process of the index-matched gel. Incorporating a saturable absorber inside the laser cavity initiates a stable Q-switched mechanism at 11.2 mW of threshold power. The measured results demonstrate that as the pump power of EDFL increases from 11.2 to 267 mW, the pulse repetition, and pulse width tuned from 21.33 to 95.2 kHz and 13.3–3.18 µs, respectively. At 267 mW of pump, the maximum average output power, pulse energy, and peak power were further measured to be 2.36 mW, 24.68 nJ, and 7.76 mW, respectively. Besides, the stability and threshold characteristics of EDFL based on carbon-doped silver nanoparticles were further explored. This study shows that the synthesis of metal nanoparticles using the laser ablation technique and their implementation as saturable absorber represents a promising avenue for advancing ultrafast laser technologies with improved stablility, efficiency, and tunability.

show abstract

Section: Resultsmentioning

confidence: 78%

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Asghar,

Ahmed,

Umar

et al. 2024

Laser Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

Co/MoS₂ nanocomposite for passive Q-switched pulse operation in erbium-doped fiber lasers

Ahmed,

Asghar,

Hameed

et al. 2024

Opt. Mater. Express

View full text Add to dashboard Cite

In this study, we examine the effectiveness of cobalt molybdenum disulfide (Co/MoS2) nanocomposite as a saturable-absorber for pulse generation in erbium-doped fiber lasers (EDFLs). A small amount of Co/MoS2 nanocomposite deposited on the fiber facet is implemented into the EDFL cavity to facilitate a Q-switching mechanism. The measured results show that the EDFL, emitted at 1568.13 nm, with a significant reduction in pulse duration from 26 µs to 4.7 µs and an increased repetition rate from 16.49 kHz to 83 kHz, as pump power tuned from 30.8 mW to 304.48 mW. The highest output power of 8.39 mW is further achieved, including a peak power of 17.59 mW and a maximum pulse energy of 109.93 nJ. A maximum single-to-noise ratio (SNR) of 52 dB is revealed at a pump of 249.48 mW. We further provide a comprehensive analysis of the EDFL's stability for a maximum of 6 hrs. Additionally, the Q-switched pulse operation was studied using a theoretical model subject to the nonlinear Schrödinger equation (NSE), and a reasonable agreement was found with experimental findings. This study highlights the feasibility of employing nanocomposite-based saturable absorbers in producing high-quality laser pulses, demonstrating its considerable promise for various pulsed laser applications.

show abstract

On the Synthesis of Graphene Oxide/Titanium Dioxide (GO/TiO2) Nanorods and Their Application as Saturable Absorbers for Passive Q-Switched Fiber Lasers

ul Abedin,

ul Haq,

Ahmed

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

We report passively Q-switched pulse operation through an erbium-doped fiber laser (EDFL) utilizing graphene oxide/titania (GO/TiO2) nanorods as a saturable absorber. The GO/TiO2 nanorods were fabricated using a Sol–gel-assisted hydrothermal method. The optical and physical characterization of the GO/TiO2 was then characterized using a field-emission-scanning electron microscope (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), and diffuses reflectance spectroscopy (DRS). To investigate the performance of the Q-switched EDFL based on the GO/TiO2 SA, the prepared nanorods were mechanically deposited on the fiber ferrule employing adhesion effects of in-dex-matching gel. This integration of the nanorod SA resulted in a self-starting Q-switching opera-tion initiated at a pump power of 17.5 mW and sustained up to 306.9 mW. When the pump range was tuned from 17.5 to 306.9 mW, the emission wavelength varied from 1564.2 to 1562.9 nm, pulse repetition rates increased from 13.87 kHz to 83.33 kHz, and pulse width decreased from 30.27 µs to 3.75 µs. Moreover, at the maximum pump power of 306.9 mW, the laser exhibited an average output power of 0.74 mW, a peak power of 1.54 mW, and a pulse energy of 8.88 nJ. Furthermore, this study investigates the GO/TiO2 damage threshold and prolonged stability of the proposed EDFL system.

show abstract

Q-switched pulse operation in erbium-doped fiber laser subject to zirconia (ZrO2) nanoparticles-based saturable absorber

Cited by 3 publications

References 29 publications

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Co/MoS₂ nanocomposite for passive Q-switched pulse operation in erbium-doped fiber lasers

On the Synthesis of Graphene Oxide/Titanium Dioxide (GO/TiO2) Nanorods and Their Application as Saturable Absorbers for Passive Q-Switched Fiber Lasers

Contact Info

Product

Resources

About

Q-switched pulse operation in erbium-doped fiber laser subject to zirconia (ZrO2) nanoparticles-based saturable absorber

Cited by 3 publications

References 29 publications

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Passively Q-switched Er-doped fiber laser based on carbon-doped silver nanoparticles saturable absorber prepared using laser ablation method

Co/MoS2 nanocomposite for passive Q-switched pulse operation in erbium-doped fiber lasers

On the Synthesis of Graphene Oxide/Titanium Dioxide (GO/TiO2) Nanorods and Their Application as Saturable Absorbers for Passive Q-Switched Fiber Lasers

Contact Info

Product

Resources

About

Co/MoS₂ nanocomposite for passive Q-switched pulse operation in erbium-doped fiber lasers