Nanotubes in Chitin Mode Locker for Passive Mode−Locked Fibre Laser in 2.0 µm Region

This research demonstrated an ultrafast passively mode-locked thulium-holmium doped fibre laser (THDFL) using a carbon nanotube (CNT)-chitin composite film as a saturable absorber (SA). The CNTs were fabricated using ultrasonic-assisted liquid-phase exfoliation, and the chitin biopolymer was derived...

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Published in:Photonics 2023-02, Vol.10 (3), p.257
Main Authors: Mohamad Rashid, Nur Nadhirah, Ahmad, Harith, Ismail, Mohammad Faizal, Lokman, Muhammad Quisar, Zuikafly, Siti Nur Fatin, Yahaya, Hafizal, Nordin, Nur Azmah, Wan Nawawi, Wan Mohd Fazli, Ahmad, Fauzan
Format: Article
Language:English
Subjects:
Biopolymers
Carbon nanotubes
Chitin
Doped fibers
Fiber lasers
Graphene
Heat resistance
Holmium
Lasers
Liquid phases
Microscopy
Mode locking
Mushrooms
Nanotechnology
Nanotubes
Pleurotus ostreatus
Polymers
Pulse duration
Pulsed lasers
saturable absorber
Signal to noise ratio
Thulium
thulium-holmium doped fiber laser
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container_end_page
container_issue 3
container_start_page 257
container_title Photonics
container_volume 10
creator Mohamad Rashid, Nur Nadhirah
Ahmad, Harith
Ismail, Mohammad Faizal
Lokman, Muhammad Quisar
Zuikafly, Siti Nur Fatin
Yahaya, Hafizal
Nordin, Nur Azmah
Wan Nawawi, Wan Mohd Fazli
Ahmad, Fauzan
description This research demonstrated an ultrafast passively mode-locked thulium-holmium doped fibre laser (THDFL) using a carbon nanotube (CNT)-chitin composite film as a saturable absorber (SA). The CNTs were fabricated using ultrasonic-assisted liquid-phase exfoliation, and the chitin biopolymer was derived from oyster mushrooms (Pleurotus Ostreatus). The free-standing SA successfully performed a mode-locking operation at a threshold input pump power of 203 mW with an operating wavelength of 1908.53 nm. The generated mode-locked pulses had repetition rate, pulse width, and signal-to-noise ratio (SNR) values of 16 MHz, 1.1 ps, and 69 dB, respectively. The work demonstrates the potential of CNTs embedded in chitin biopolymer as a sustainable and environmentally friendly SA for a wide range of applications, particularly for pulsed lasers.
doi_str_mv 10.3390/photonics10030257
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subjects Biopolymers
Carbon nanotubes
Chitin
Doped fibers
Fiber lasers
Graphene
Heat resistance
Holmium
Lasers
Liquid phases
Microscopy
Mode locking
Mushrooms
Nanotechnology
Nanotubes
Pleurotus ostreatus
Polymers
Pulse duration
Pulsed lasers
saturable absorber
Signal to noise ratio
Thulium
thulium-holmium doped fiber laser
title Nanotubes in Chitin Mode Locker for Passive Mode−Locked Fibre Laser in 2.0 µm Region
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