Femtosecond mode-locked laser at 1.5 μm region using turmeric-based saturable absorber Repository

Femtosecond mode-locked laser at 1.5 μm region using turmeric-based saturable absorber

Ahmed Shakir Al-Hiti and Ahmed Hasan Hamood Al-Masoodi and Moh. Yasin and Sulaiman Wadi Harun (2020) Femtosecond mode-locked laser at 1.5 μm region using turmeric-based saturable absorber. Infrared Physics and Technology, 111. ISSN 1350-4495

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

We have successful fabricated a turmeric [1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6 heptadiene-3,5-dione] thin film with 23% modulation depth using Poly(vinyl alcohol) as a host polymer. The fabricated film was used as saturable absorber (SA) within an erbium doped fiber laser (EDFL) ring cavity, and soliton pulses with a temporal width of 920 fs were readily obtained through the mode-locking process at threshold pump power of 144 mW. The mode-locked laser operated at 1568.4 nm with a 3-dB bandwidth of 3.84 nm. At maximum input LD power of 305 mW, the mode-locked laser has a repetition rate of 3.383 MHz, a pulse width of 920 fs, the average output power of 5.67 mW, a signal-to-noise ratio (SNR) of 77 dB, and pulse energy of 1.67 nJ. To the best of the authors’ knowledge this is the first demonstration using turmeric thin film based SA for ultrafast light generation.

Item Type:

Article

Additional Information:

cited By 0

Uncontrolled Keywords:

Fiber lasers; Food products; Optical pumping; Polyvinyl alcohols; Pulse repetition rate; Saturable absorbers; Signal to noise ratio; Thin films; Ultrafast lasers, Average output power; Erbium doped fiber laser; Femtosecond mode-locked laser; Light generation; Mode locking process; Mode-locked laser; Modulation depth; Threshold pump power, Mode-locked fiber lasers

Subjects:

Q Science > QC Physics > QC1 Physics (General)

Divisions:

Artikel Ilmiah > SCOPUS INDEXED JOURNAL

Creators:

Creators	NIM
Ahmed Shakir Al-Hiti	UNSPECIFIED
Ahmed Hasan Hamood Al-Masoodi	UNSPECIFIED
Moh. Yasin	NIDN0003126704
Sulaiman Wadi Harun	UNSPECIFIED

Depositing User:

Ika Rudianto

Date Deposited:

03 Feb 2021 02:01

Last Modified:

03 Feb 2021 02:01

URI:

http://repository.unair.ac.id/id/eprint/102300

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