Tris-(8-hydroxyquinoline) aluminium thin film as saturable absorber for passively Q-switched erbium-doped fibre laser

Sameer Salam; Sulaiman W. Harun; Ahmad H.H. Al-Masoodi; Mahmoud H.M. Ahmed; Ab H.H. Al-Masoodi; Ibrahim A.M. Alani; Wan H.Abd Majid; Wei Ru Wong; Moh Yasin

doi:10.1049/iet-opt.2018.5149

Tris-(8-hydroxyquinoline) aluminium thin film as saturable absorber for passively Q-switched erbium-doped fibre laser

Sameer Salam, Sulaiman W. Harun, Ahmad H.H. Al-Masoodi, Mahmoud H.M. Ahmed, Ab H.H. Al-Masoodi, Ibrahim A.M. Alani, Wan H.Abd Majid, Wei Ru Wong, Moh Yasin

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A passively Q-switched erbium-doped fibre laser was demonstrated by using tris-(8-hydroxyquinoline)aluminium (Alq₃) organic material as a passive saturable absorber (SA). The SA was fabricated by a drop casting technique at room temperature and incorporated into a laser cavity by inserting it between two optical fibre ferrules. The Q-switched fibre laser operates at a centre wavelength of 1559 nm with a full-width half maximum of 1 nm. The generated pulse train is stable and has a pulse width decreased from 6.65 to 1.2 μs and the pulse repetition rate increased from 31.65 to 144.5 kHz as the pump power increased from 20 to 122 mW. The maximum pulse energy obtained is 63.89 nJ. This work indicates that the Alq₃ as SA has a great potential to be utilised for pulsed laser generation. To the best of the authors' knowledge, this is the first time an organic material is utilised as a SA device for generating a stable Q-switched laser pulse.

Original language	English
Pages (from-to)	247-253
Number of pages	7
Journal	IET Optoelectronics
Volume	13
Issue number	5
DOIs	https://doi.org/10.1049/iet-opt.2018.5149
Publication status	Published - 1 Oct 2019

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title = "Tris-(8-hydroxyquinoline) aluminium thin film as saturable absorber for passively Q-switched erbium-doped fibre laser",

abstract = "A passively Q-switched erbium-doped fibre laser was demonstrated by using tris-(8-hydroxyquinoline)aluminium (Alq3) organic material as a passive saturable absorber (SA). The SA was fabricated by a drop casting technique at room temperature and incorporated into a laser cavity by inserting it between two optical fibre ferrules. The Q-switched fibre laser operates at a centre wavelength of 1559 nm with a full-width half maximum of 1 nm. The generated pulse train is stable and has a pulse width decreased from 6.65 to 1.2 μs and the pulse repetition rate increased from 31.65 to 144.5 kHz as the pump power increased from 20 to 122 mW. The maximum pulse energy obtained is 63.89 nJ. This work indicates that the Alq3 as SA has a great potential to be utilised for pulsed laser generation. To the best of the authors' knowledge, this is the first time an organic material is utilised as a SA device for generating a stable Q-switched laser pulse.",

author = "Sameer Salam and Harun, {Sulaiman W.} and Al-Masoodi, {Ahmad H.H.} and Ahmed, {Mahmoud H.M.} and Al-Masoodi, {Ab H.H.} and Alani, {Ibrahim A.M.} and Majid, {Wan H.Abd} and Wong, {Wei Ru} and Moh Yasin",

year = "2019",

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doi = "10.1049/iet-opt.2018.5149",

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AU - Salam, Sameer

AU - Harun, Sulaiman W.

AU - Al-Masoodi, Ahmad H.H.

AU - Ahmed, Mahmoud H.M.

AU - Al-Masoodi, Ab H.H.

AU - Alani, Ibrahim A.M.

AU - Majid, Wan H.Abd

AU - Wong, Wei Ru

AU - Yasin, Moh

PY - 2019/10/1

Y1 - 2019/10/1

N2 - A passively Q-switched erbium-doped fibre laser was demonstrated by using tris-(8-hydroxyquinoline)aluminium (Alq3) organic material as a passive saturable absorber (SA). The SA was fabricated by a drop casting technique at room temperature and incorporated into a laser cavity by inserting it between two optical fibre ferrules. The Q-switched fibre laser operates at a centre wavelength of 1559 nm with a full-width half maximum of 1 nm. The generated pulse train is stable and has a pulse width decreased from 6.65 to 1.2 μs and the pulse repetition rate increased from 31.65 to 144.5 kHz as the pump power increased from 20 to 122 mW. The maximum pulse energy obtained is 63.89 nJ. This work indicates that the Alq3 as SA has a great potential to be utilised for pulsed laser generation. To the best of the authors' knowledge, this is the first time an organic material is utilised as a SA device for generating a stable Q-switched laser pulse.

AB - A passively Q-switched erbium-doped fibre laser was demonstrated by using tris-(8-hydroxyquinoline)aluminium (Alq3) organic material as a passive saturable absorber (SA). The SA was fabricated by a drop casting technique at room temperature and incorporated into a laser cavity by inserting it between two optical fibre ferrules. The Q-switched fibre laser operates at a centre wavelength of 1559 nm with a full-width half maximum of 1 nm. The generated pulse train is stable and has a pulse width decreased from 6.65 to 1.2 μs and the pulse repetition rate increased from 31.65 to 144.5 kHz as the pump power increased from 20 to 122 mW. The maximum pulse energy obtained is 63.89 nJ. This work indicates that the Alq3 as SA has a great potential to be utilised for pulsed laser generation. To the best of the authors' knowledge, this is the first time an organic material is utilised as a SA device for generating a stable Q-switched laser pulse.

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ER -

Tris-(8-hydroxyquinoline) aluminium thin film as saturable absorber for passively Q-switched erbium-doped fibre laser

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