Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber

A compact, Q-switched fibre laser is proposed and demonstrated using a compact Bismuth-based erbium doped fibre (Bi-EDF) together with a Graphene Oxide (GO) Saturable Absorber (SA). The 21 cm long Bi-EDF has an erbium dopant concentration of 6300 ppm with absorption rates of about 83 and 133 dB/m at...

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Main Authors:	Ahmad, H., Zulkifli, A.Z., Kiat, Y.Y., Harun, S.W.
Format:	Article
Published:	Elsevier 2014
Subjects:	QC Physics
Online Access:	http://www.sciencedirect.com/science/article/pii/S0030401813006913 http://www.sciencedirect.com/science/article/pii/S0030401813006913

id	um-14335
recordtype	eprints
spelling	um-143352017-11-09T08:14:32Z Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber Ahmad, H. Zulkifli, A.Z. Kiat, Y.Y. Harun, S.W. QC Physics A compact, Q-switched fibre laser is proposed and demonstrated using a compact Bismuth-based erbium doped fibre (Bi-EDF) together with a Graphene Oxide (GO) Saturable Absorber (SA). The 21 cm long Bi-EDF has an erbium dopant concentration of 6300 ppm with absorption rates of about 83 and 133 dB/m at 1480 and 1530 nm. The SA is fabricated from graphene flakes dissolved in water, forming a GO film that is sandwiched between two FC/PC connectors. The Q-switched Bi-EDF laser has an Amplified Spontaneous Emission (ASE) spectrum of 120 nm, stretching from 1490 to 1610 nm and a Q-switching threshold power of about 65 mW. At the maximum pump power of 118 mW, the pulses are generated with an average output power and pulse energy of 0.11 mW and 4.3 nJ, with a repetition rate and pulse width of 27.2 kHz and 7.7 μs. The output can be tuned over the amplified spontaneous emission spectrum with an average peak power of about −16.8 dBm, and observation under a radio frequency spectrum analyser shows a highly stable output at 21.8 kHz. The proposed Bi-EDF laser will have substantial uses in applications requiring short and stable pulses such as rangefinding and sensing. Elsevier 2014-01-01 Article PeerReviewed http://www.sciencedirect.com/science/article/pii/S0030401813006913 Ahmad, H.; Zulkifli, A.Z.; Kiat, Y.Y.; Harun, S.W. (2014) Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber. Optics Communications <http://eprints.um.edu.my/view/publication/Optics_Communications.html>, 310. pp. 53-57. ISSN 0030-4018 http://eprints.um.edu.my/14335/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	QC Physics
spellingShingle	QC Physics Ahmad, H. Zulkifli, A.Z. Kiat, Y.Y. Harun, S.W. Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
description	A compact, Q-switched fibre laser is proposed and demonstrated using a compact Bismuth-based erbium doped fibre (Bi-EDF) together with a Graphene Oxide (GO) Saturable Absorber (SA). The 21 cm long Bi-EDF has an erbium dopant concentration of 6300 ppm with absorption rates of about 83 and 133 dB/m at 1480 and 1530 nm. The SA is fabricated from graphene flakes dissolved in water, forming a GO film that is sandwiched between two FC/PC connectors. The Q-switched Bi-EDF laser has an Amplified Spontaneous Emission (ASE) spectrum of 120 nm, stretching from 1490 to 1610 nm and a Q-switching threshold power of about 65 mW. At the maximum pump power of 118 mW, the pulses are generated with an average output power and pulse energy of 0.11 mW and 4.3 nJ, with a repetition rate and pulse width of 27.2 kHz and 7.7 μs. The output can be tuned over the amplified spontaneous emission spectrum with an average peak power of about −16.8 dBm, and observation under a radio frequency spectrum analyser shows a highly stable output at 21.8 kHz. The proposed Bi-EDF laser will have substantial uses in applications requiring short and stable pulses such as rangefinding and sensing.
format	Article
author	Ahmad, H. Zulkifli, A.Z. Kiat, Y.Y. Harun, S.W.
author_facet	Ahmad, H. Zulkifli, A.Z. Kiat, Y.Y. Harun, S.W.
author_sort	Ahmad, H.
title	Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
title_short	Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
title_full	Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
title_fullStr	Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
title_full_unstemmed	Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber
title_sort	q-switched fibre laser using 21 cm bismuth-erbium doped fibre and graphene oxide as saturable absorber
publisher	Elsevier
publishDate	2014
url	http://www.sciencedirect.com/science/article/pii/S0030401813006913 http://www.sciencedirect.com/science/article/pii/S0030401813006913
first_indexed	2018-09-06T06:21:59Z
last_indexed	2018-09-06T06:21:59Z
_version_	1610838095087796224

Q-switched fibre laser using 21 cm Bismuth-erbium doped fibre and graphene oxide as saturable absorber

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