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Hot-wire chemical vapor deposition-synthesized MoO3-x saturable absorber for dual-wavelength mode-locked fiber laser.

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Title: Hot-wire chemical vapor deposition-synthesized MoO3-x saturable absorber for dual-wavelength mode-locked fiber laser.
Authors: Azmi, Muhammad Khairul Ashraf1 (AUTHOR), Mustaffa, Siti Nasuha1 (AUTHOR), Khushaini, Muhammad Asif Ahmad2 (AUTHOR), Ahmad, Aeriyn Dwierni3,4 (AUTHOR), Harun, Sulaiman Wadi3 (AUTHOR), Jafry, Afiq Arif Aminuddin5 (AUTHOR), Latiff, Anas Abdul6 (AUTHOR), Muhammad, Ahmad Razif1 (AUTHOR) a.razif@ukm.edu.my
Source: Journal of Materials Science: Materials in Electronics. May2026, Vol. 37 Issue 15, p1-14. 14p.
Abstract: In this work, a stable dual-wavelength mode-locked erbium-doped fiber laser (EDFL) incorporating sub-stoichiometric molybdenum trioxide (MoO3-x) as a saturable absorber (SA) is presented. The MoO3-x thin-film SA was prepared by hot-wire chemical vapor deposition (HWCVD) to induce oxygen vacancies and integrated into an all-fiber EDFL cavity. Stable dual-wavelength mode-locking was achieved over a pump power range of 109.1 mW to 164.5 mW, with peak wavelengths at 1532.2 nm and 1558.2 nm, separated by 26.0 nm. The mode-locked pulses exhibited an ultrashort pulse width of 4.44 ps, a repetition rate of 1.277 MHz, and a signal-to-noise ratio (SNR) of 84.32 dB. The maximum output power obtained was 10.07 mW, corresponding to a maximum pulse energy of 7.9 nJ. The stability of the dual-wavelength mode-locking was confirmed by continuous operation over 70 min. These findings demonstrate the potential of MoO3-x as an effective saturable absorber for generating stable dual-wavelength picosecond pulses in fiber lasers. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Hot-wire chemical vapor deposition-synthesized MoO<subscript>3-x</subscript> saturable absorber for dual-wavelength mode-locked fiber laser.
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  Data: <searchLink fieldCode="AR" term="%22Azmi%2C+Muhammad+Khairul+Ashraf%22">Azmi, Muhammad Khairul Ashraf</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mustaffa%2C+Siti+Nasuha%22">Mustaffa, Siti Nasuha</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khushaini%2C+Muhammad+Asif+Ahmad%22">Khushaini, Muhammad Asif Ahmad</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahmad%2C+Aeriyn+Dwierni%22">Ahmad, Aeriyn Dwierni</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Harun%2C+Sulaiman+Wadi%22">Harun, Sulaiman Wadi</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jafry%2C+Afiq+Arif+Aminuddin%22">Jafry, Afiq Arif Aminuddin</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Latiff%2C+Anas+Abdul%22">Latiff, Anas Abdul</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Muhammad%2C+Ahmad+Razif%22">Muhammad, Ahmad Razif</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.razif@ukm.edu.my</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. May2026, Vol. 37 Issue 15, p1-14. 14p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, a stable dual-wavelength mode-locked erbium-doped fiber laser (EDFL) incorporating sub-stoichiometric molybdenum trioxide (MoO3-x) as a saturable absorber (SA) is presented. The MoO3-x thin-film SA was prepared by hot-wire chemical vapor deposition (HWCVD) to induce oxygen vacancies and integrated into an all-fiber EDFL cavity. Stable dual-wavelength mode-locking was achieved over a pump power range of 109.1 mW to 164.5 mW, with peak wavelengths at 1532.2 nm and 1558.2 nm, separated by 26.0 nm. The mode-locked pulses exhibited an ultrashort pulse width of 4.44 ps, a repetition rate of 1.277 MHz, and a signal-to-noise ratio (SNR) of 84.32 dB. The maximum output power obtained was 10.07 mW, corresponding to a maximum pulse energy of 7.9 nJ. The stability of the dual-wavelength mode-locking was confirmed by continuous operation over 70 min. These findings demonstrate the potential of MoO3-x as an effective saturable absorber for generating stable dual-wavelength picosecond pulses in fiber lasers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10854-026-17620-2
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            NameFull: Ahmad, Aeriyn Dwierni
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              M: 05
              Text: May2026
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