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Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation

The performance of Q-switched erbium doped fiber laser using monolayer molybdenum disulfide (MoS2)-coated planarized optical waveguides with different MoS2 coating lengths is studied in this work. Monolayer MoS2 thin film is integrated onto a planarized optical waveguide using dry transfer technique...

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Main Authors: Chew, Jing Wen, Ng, Kok Bin, Gan, Soon Xin, Tey, Lian Seng, Chong, Wu Yi, Yap, Yuen Kiat, Ahmad, Harith
Format: Article
Published: Institute of Electrical and Electronics Engineers 2023
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/38285/
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spelling my.um.eprints.382852024-01-30T04:38:58Z http://eprints.um.edu.my/38285/ Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation Chew, Jing Wen Ng, Kok Bin Gan, Soon Xin Tey, Lian Seng Chong, Wu Yi Yap, Yuen Kiat Ahmad, Harith Q Science (General) QD Chemistry The performance of Q-switched erbium doped fiber laser using monolayer molybdenum disulfide (MoS2)-coated planarized optical waveguides with different MoS2 coating lengths is studied in this work. Monolayer MoS2 thin film is integrated onto a planarized optical waveguide using dry transfer technique. As the MoS2 thin film interacts with the evanescent field only, the MoS2-coated planarized waveguide saturable absorber provides advantages in terms of high damage threshold and controllable interaction length between the MoS2 thin film and the light propagating in the waveguide. With a MoS2 coating length of 7.2 mm, the laser shows a widely tunable wavelength range of 38.6 nm. The wavelength tunability of the Q-switched fiber laser reduces to 5.9 nm when the interaction length between light propagating in the waveguide and the MoS2 monolayer is reduced to 2.5 mm. This effect is attributed to the reduction in the number of vacancy states of MoS2 in shorter length coatings. The results obtained contribute valuable information towards the development of all-planar waveguide pulsed laser source. Institute of Electrical and Electronics Engineers 2023-04 Article PeerReviewed Chew, Jing Wen and Ng, Kok Bin and Gan, Soon Xin and Tey, Lian Seng and Chong, Wu Yi and Yap, Yuen Kiat and Ahmad, Harith (2023) Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation. Journal of Lightwave Technology, 41 (8). pp. 2458-2464. ISSN 0733-8724, DOI https://doi.org/10.1109/JLT.2022.3231370 <https://doi.org/10.1109/JLT.2022.3231370>. 10.1109/JLT.2022.3231370
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Chew, Jing Wen
Ng, Kok Bin
Gan, Soon Xin
Tey, Lian Seng
Chong, Wu Yi
Yap, Yuen Kiat
Ahmad, Harith
Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
description The performance of Q-switched erbium doped fiber laser using monolayer molybdenum disulfide (MoS2)-coated planarized optical waveguides with different MoS2 coating lengths is studied in this work. Monolayer MoS2 thin film is integrated onto a planarized optical waveguide using dry transfer technique. As the MoS2 thin film interacts with the evanescent field only, the MoS2-coated planarized waveguide saturable absorber provides advantages in terms of high damage threshold and controllable interaction length between the MoS2 thin film and the light propagating in the waveguide. With a MoS2 coating length of 7.2 mm, the laser shows a widely tunable wavelength range of 38.6 nm. The wavelength tunability of the Q-switched fiber laser reduces to 5.9 nm when the interaction length between light propagating in the waveguide and the MoS2 monolayer is reduced to 2.5 mm. This effect is attributed to the reduction in the number of vacancy states of MoS2 in shorter length coatings. The results obtained contribute valuable information towards the development of all-planar waveguide pulsed laser source.
format Article
author Chew, Jing Wen
Ng, Kok Bin
Gan, Soon Xin
Tey, Lian Seng
Chong, Wu Yi
Yap, Yuen Kiat
Ahmad, Harith
author_facet Chew, Jing Wen
Ng, Kok Bin
Gan, Soon Xin
Tey, Lian Seng
Chong, Wu Yi
Yap, Yuen Kiat
Ahmad, Harith
author_sort Chew, Jing Wen
title Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
title_short Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
title_full Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
title_fullStr Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
title_full_unstemmed Interaction length-dependent saturable absorption of MoS2-coated planarized waveguide and its effect on the performance of Q-Switched pulse laser generation
title_sort interaction length-dependent saturable absorption of mos2-coated planarized waveguide and its effect on the performance of q-switched pulse laser generation
publisher Institute of Electrical and Electronics Engineers
publishDate 2023
url http://eprints.um.edu.my/38285/
_version_ 1789940697033342976
score 13.211869

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