Generation of Kelly and dip type sidebands soliton employing Topological insulator (Bi2Te3) as saturable absorber

Hazlihan Haris and A.R. Muhammad and Tan, S.J. and A.M. Markom and S.W. Harun and Megat Muhammad Ikhsan Megat Hasnan and Ismail Saad (2022) Generation of Kelly and dip type sidebands soliton employing Topological insulator (Bi2Te3) as saturable absorber. Infrared Physics and Technology, 123. pp. 1-8. ISSN 1350-4495

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Abstract

Conventional Kelly sidebands soliton and dip-type sidebands soliton were observed with the employment of Bi2Te3 as saturable absorber (SA) in Erbium-Doped Fiber Laser (EDFL). The fabricated Bi2Te3 possessed the following characteristics: Isat 102 MW/cm2, modulation depth 41.4%, and non-saturable absorption at 10%. The Bi2Te3 solution was transferred to the end of the fiber ferrule by the optical deposition method. Conventional Kelly sidebands soliton was obtained with a fundamental repetition rate and pulse width of 24 MHz and 0.78 ps, respectively. The existing cavity length was extended and with the appropriate tuning of light polarization, dip-peak intensity soliton sidebands with bunched pulses were observed. The oscillation trace revealed the repetition rate of dip-peak intensity sidebands soliton was ascertained at 13.5 MHz, which was in accordance with the cavity length. There was a total of 144 pulses in a single bunch envelope under the maximum available pump power. With the appropriate tuning of light polarization, constructive and destructive interference between soliton and dispersive waves took place in EDFL resulting in the formation of peak intensity (Kelly sidebands) and dip-peak intensity on the soliton spectrum. To the best of the author’s knowledge, this is the first demonstration of dip-peak intensity sidebands soliton using Bi2Te3.

Item Type:	Article
Keyword:	Saturable absorber , Erbium-doped fibre laser , Bismuth Selenide , Mode-locking , Multi-soliton , Bunch soliton
Subjects:	Q Science > QC Physics > QC1-999 Physics > QC501-766 Electricity and magnetism T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA1501-1820 Applied optics. Photonics
Department:	FACULTY > Faculty of Engineering
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	21 Jul 2022 08:54
Last Modified:	21 Jul 2022 08:54
URI:	https://eprints.ums.edu.my/id/eprint/33407

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