Passively mode-locked laser at 1μm region based on tungsten trioxide (WO3) saturable absorber

Ahmed Shakir Al-Hiti; Ahmed H.H. Al-Masoodi; Mustafa Mohammed Najm; Moh Yasin; Sulaiman Wadi Harun

doi:10.1016/j.ijleo.2021.166377

Passively mode-locked laser at 1μm region based on tungsten trioxide (WO₃) saturable absorber

Ahmed Shakir Al-Hiti, Ahmed H.H. Al-Masoodi, Mustafa Mohammed Najm, Moh Yasin, Sulaiman Wadi Harun

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

20 Citations (Scopus)

Abstract

Stable and efficient mode-locked operation at 1065 nm was demonstrated using tungsten trioxide (WO₃) thin film as a saturable absorber (SA). The WO₃ thin film composite was prepared by a low cost and simple method and it has a modulation depth of 20 %. As the SA film was inserted into a Ytterbium-doped fiber laser (YDFL) cavity. The mode-locked laser operated in normal dispersion regime and generated pulses at 1065 nm with 3-dB bandwidth of 1 nm. The YDFL operated at fixed repetition rate of 10 MHz with pulse width of 1.67 ps. The maximum average output power of 21.64 mW and pulse energy of 2.16 nJ were recorded at a pump power of 162 mW.

Original language	English
Article number	166377
Journal	Optik
Volume	231
DOIs	https://doi.org/10.1016/j.ijleo.2021.166377
Publication status	Published - Apr 2021

Keywords

Mode-locked
Saturable absorber
WO
Ytterbium laser

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10.1016/j.ijleo.2021.166377

Cite this

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title = "Passively mode-locked laser at 1μm region based on tungsten trioxide (WO3) saturable absorber",

abstract = "Stable and efficient mode-locked operation at 1065 nm was demonstrated using tungsten trioxide (WO3) thin film as a saturable absorber (SA). The WO3 thin film composite was prepared by a low cost and simple method and it has a modulation depth of 20 %. As the SA film was inserted into a Ytterbium-doped fiber laser (YDFL) cavity. The mode-locked laser operated in normal dispersion regime and generated pulses at 1065 nm with 3-dB bandwidth of 1 nm. The YDFL operated at fixed repetition rate of 10 MHz with pulse width of 1.67 ps. The maximum average output power of 21.64 mW and pulse energy of 2.16 nJ were recorded at a pump power of 162 mW.",

keywords = "Mode-locked, Saturable absorber, WO, Ytterbium laser",

author = "Al-Hiti, {Ahmed Shakir} and Al-Masoodi, {Ahmed H.H.} and Najm, {Mustafa Mohammed} and Moh Yasin and Harun, {Sulaiman Wadi}",

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doi = "10.1016/j.ijleo.2021.166377",

language = "English",

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T1 - Passively mode-locked laser at 1μm region based on tungsten trioxide (WO3) saturable absorber

AU - Al-Hiti, Ahmed Shakir

AU - Al-Masoodi, Ahmed H.H.

AU - Najm, Mustafa Mohammed

AU - Yasin, Moh

AU - Harun, Sulaiman Wadi

PY - 2021/4

Y1 - 2021/4

N2 - Stable and efficient mode-locked operation at 1065 nm was demonstrated using tungsten trioxide (WO3) thin film as a saturable absorber (SA). The WO3 thin film composite was prepared by a low cost and simple method and it has a modulation depth of 20 %. As the SA film was inserted into a Ytterbium-doped fiber laser (YDFL) cavity. The mode-locked laser operated in normal dispersion regime and generated pulses at 1065 nm with 3-dB bandwidth of 1 nm. The YDFL operated at fixed repetition rate of 10 MHz with pulse width of 1.67 ps. The maximum average output power of 21.64 mW and pulse energy of 2.16 nJ were recorded at a pump power of 162 mW.

AB - Stable and efficient mode-locked operation at 1065 nm was demonstrated using tungsten trioxide (WO3) thin film as a saturable absorber (SA). The WO3 thin film composite was prepared by a low cost and simple method and it has a modulation depth of 20 %. As the SA film was inserted into a Ytterbium-doped fiber laser (YDFL) cavity. The mode-locked laser operated in normal dispersion regime and generated pulses at 1065 nm with 3-dB bandwidth of 1 nm. The YDFL operated at fixed repetition rate of 10 MHz with pulse width of 1.67 ps. The maximum average output power of 21.64 mW and pulse energy of 2.16 nJ were recorded at a pump power of 162 mW.

KW - Mode-locked

KW - Saturable absorber

KW - WO

KW - Ytterbium laser

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