Tunable passively Q-switched thulium doped fluoride fibre (TDFF) laser using reduced graphene oxide-silver (rGO-Ag) as saturable absorber

Ahmad, Harith; Azmy, Nur Fatini; Reduan, Siti Aisyah; Yusoff, Norazriena; Bayang, Leonard; Zulkifli, Mohd Zamani; Thambiratnam, Kavintheran

doi:10.1080/09500340.2020.1810340

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…EDF lasers account for about half of the tunable lasers demonstrated in table 1, indicating the wide application of the 1500 nm laser and the significance of research on it. In addition to EDF, multiple cases of 1.5 μm tunable lasers with thulium-doped fluoride fiber as the gain fiber have been reported [63][64][65][66]. Besides, Peng et al reported a 1.5 μm tunable laser with bismuth-erbium doped fiber as the gain fiber [67].…”

Section: 5 μM Lasersmentioning

confidence: 99%

Wavelength-tunable broadband lasers based on nanomaterials

Zhang,

et al. 2023

Nanotechnology

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Nanomaterials are widely used in the fields of sensors, optoelectronics, biophotonics and ultrafast photonics due to their excellent mechanical, thermal, optical, electrical and magnetic properties. Particularly, owing to their nonlinear optical properties, fast response time and broadband operation, nanomaterials are ideal saturable absorption materials in ultrafast photonics, which contribute to the improvement of laser performance. Therefore, nanomaterials are of great importance to applications in wavelength-tunable broadband pulsed lasers. Herein, we review the integration and applications of nanomaterials in wavelength-tunable broadband ultrafast photonics. Firstly, the two integration methods, which are direct coupling and evanescent field coupling, and their characteristics are introduced. Secondly, the applications of nanomaterials in wavelength-tunable broadband lasers are summarized. Finally, the development of nanomaterials and broadband tunable lasers is reviewed and discussed.

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Section: 5 μM Lasersmentioning

confidence: 99%

Wavelength-tunable broadband lasers based on nanomaterials

Zhang,

et al. 2023

Nanotechnology

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“…In addition, some important and preliminary findings presented in recent published papers have demonstrated tunable pulse width and wavelength Q-switched laser systems through direct pumped modulation with high electrical power or other bulk tuning elements' assistance. [22][23][24][25] Therefore, additional research on the efficient active on-chip electrical control of entire-solid-state laser systems needs to be implemented.…”

mentioning

confidence: 99%

Printable Graphene–Insulator–Semiconductor (GIS) Heterostructures for Active Control of Infrared Q‐Switched Laser

Dai

Chang

et al. 2021

Advanced Optical Materials

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2D materials have recently attracted extensive attention in solid‐state laser devices due to the improvement of their beam quality and service life. However, most conventional devices suffer from the fixed saturable absorption properties of certain 2D materials and are confined to the determined operation state. Herein, on‐chip electrically tunable infrared laser signals are realized by introducing a novel 2D nanomesh saturable absorber (SA) interaction layer without other tuning elements based on printable graphene–insulator–semiconductor (GIS) heterostructures. The pulse width can be highly controllable ranging from 1 µs to 360 ns under ultralow electrical modulation power (≈10 pA current and <0.5 nW power), thanks to the high conductivity and tunability of graphene. Furthermore, the precise regulation mechanism of the Fermi level of graphene by the heterostructures is comprehensively explored through opto‐electrical characterization with spectroscopic methods. The GIS device introduces a promising way to achieve actively controlled solid‐state optoelectronic and nonlinear photonic devices in the future.

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