Tunable Q-switched ytterbium-doped fibre laser by using zinc oxide as saturable absorber

Shaharuddin, R.A.; Azzuhri, Saaidal Razalli; Ismail, Mohamed A.; Rashid, Fahanim Abdul; Samion, Muhamad Zharif; Razak, M.Z.A.; Ahmad, Harith

doi:10.1016/j.opelre.2017.01.002

Cited by 6 publications

(4 citation statements)

References 36 publications

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“…The Bi-EDF has an absorption coefficient of 133 dB m −1 at 1480 nm and a numerical aperture of 0.2. The bismuth glass host is capable of exhibiting broadband gain bandwidth due to a large emission cross-section [37] and high erbium ion concentration without the effects of concentration quenching [38]. These properties are suitable for designing high power, broad band and compact optical fiber amplifiers and lasers.…”

Section: Experiments Setupmentioning

confidence: 99%

In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

et al. 2018

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An Indium–selenide based saturable absorber is proposed and demonstrated for the passive generation of Q-switched pulses in a C- to L-band fiber laser. The proposed laser uses a 21 cm long bismuth–erbium doped fiber (Bi-EDF) as the linear gain medium, and is capable of generating passively Q-switched outputs that can be tuned over a bandwidth of 40 nm from 1533 nm to 1573 nm. The generated pulses have a maximum repetition rate of 52 kHz and a minimum pulse width of 2.2 μs at the maximum available pump power of 134 mW. Similarly, a maximum pulse energy and average output power of 13.5 nJ and 0.7 mW respectively are obtained at the same pump power. Radio frequency measurement indicates a stable pulse obtained with a high signal-to-noise ratio of 42.8 dB and with no other frequency peaks observed, indicating that only the fundamental mode is present. The proposed tunable Q-switched Bi-EDF laser would have significant potential for applications requiring tunable, high energy pulses such as spectroscopy and medicine in the C- and L-band regions.

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Section: Experiments Setupmentioning

confidence: 99%

In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

et al. 2018

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“…Compared with the reported PQS fiber laser based on a ZnO-SA [18,20,22], the pulse energy obtained is much larger since our configuration uses cladding pumping of an EYDCF instead of the use of a conventional EDF as a gain medium. In addition, pulses trains with higher repetition rates were observed.…”

Section: Resultsmentioning

confidence: 96%

“…Different SA devices, including semiconductor saturable absorber mirrors [4,5], graphene [6,7], carbon nanotubes [8,9], rare-earth-doped fibers [10,11], transition Laser Physics Letters Magnetron sputtered Al-doped ZnO thin film as saturable absorber for passively Q-switched Er/Yb double clad fiber laser P Prieto-Cortés 1 , R I Álvarez-Tamayo 2 , M García-Méndez 1 , M Durán-Sánchez 3 , A Barcelata-Pinzón 4 and B Ibarra-Escamilla 5 metal dichalcogenides [12][13][14], and topological insulator (TI) materials [15][16][17], have been proposed for pulsed operation in fiber lasers. Although the saturable absorption properties of different TIs have been investigated, only recently have transition metal oxide (TMO) materials have been proposed as promising SAs to generate PQS laser pulses [18][19][20][21][22]. Due to their high material availability and low material cost for large area applications, in addition with the large band-gap and high binding energy, TMOs like indium tin oxide, SnO 2 and zinc oxide (ZnO) have been used in the manufacturing of transparent electrodes in flat panel displays, solar cells, and organic light emitting diodes [23,24].…”

Section: Introductionmentioning

confidence: 99%

“…Due to their high material availability and low material cost for large area applications, in addition with the large band-gap and high binding energy, TMOs like indium tin oxide, SnO 2 and zinc oxide (ZnO) have been used in the manufacturing of transparent electrodes in flat panel displays, solar cells, and organic light emitting diodes [23,24]. Particularly, ZnO has been demonstrated to be a TMO material with the attractive optical properties of an ideal SA, such as favorable saturable absorption [18,20,22] and fast recovery time (1-5 ps) [25].…”

Section: Introductionmentioning

confidence: 99%

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Magnetron sputtered Al-doped ZnO thin film as saturable absorber for passively Q-switched Er/Yb double clad fiber laser

Prieto-Cortés¹,

Álvarez-Tamayo²,

García-Méndez³

et al. 2019

Laser Phys. Lett.

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The passive Q-switched operation of a ring cavity Er/Yb-doped double clad fiber laser by using an Al-doped ZnO (AZO) thin film as saturable absorber is experimentally demonstrated. In order to improve the absorbance in the C-band wavelength region, a thin film of AZO containing Zn and Al metal precursors in a proportion of 98:2 wt% was developed by an radio-frequency (RF) magnetron sputtering process. Then the AZO film was used as a saturable absorber (SA) in a ring cavity Er/Yb double clad fiber laser. The AZO-SA exhibits a modulation depth of 11.3% and a saturation intensity of 0.057 MW cm −2 in the 1.55 µm waveband. In a pump power range from 0.475 to 1.356 W, stable Q-switched pulse trains with repetition rates of 70.1-161.3 kHz were observed. With a maximum pump power of 1.356 W, a minimum pulse width of 1.12 µs and a maximum pulse energy of 1.32 µJ are obtained. To the best of our knowledge, we present the first demonstration of a passive Q-switching laser operation using an RF sputtered AZO thin film as a saturable absorber. The reliability of the RF magnetron sputtered AZO thin films used as an SA for 1.55 µm Q-switched laser applications is experimentally demonstrated.

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Q-switched fiber laser generation utilizing metal oxide-based saturable absorber in the region of 1.0 µm and 1.5 µm

Albaqawi,

Hedhili,

Chebaane

et al. 2024

Optik

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Tunable Q-switched ytterbium-doped fibre laser by using zinc oxide as saturable absorber

Cited by 6 publications

References 36 publications

In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

Magnetron sputtered Al-doped ZnO thin film as saturable absorber for passively Q-switched Er/Yb double clad fiber laser

Q-switched fiber laser generation utilizing metal oxide-based saturable absorber in the region of 1.0 µm and 1.5 µm

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Tunable Q-switched ytterbium-doped fibre laser by using zinc oxide as saturable absorber

Cited by 6 publications

References 36 publications

In2Se3 saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

In2Se3 saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

Magnetron sputtered Al-doped ZnO thin film as saturable absorber for passively Q-switched Er/Yb double clad fiber laser

Q-switched fiber laser generation utilizing metal oxide-based saturable absorber in the region of 1.0 µm and 1.5 µm

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In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser

In₂Se₃ saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser