Ultrafast all-fibre laser mode-locked by polymer-free carbon nanotube film

Kobtsev, Sergey; Ivanenko, Aleksey; Gladush, Yury; Nyushkov, Boris; Kokhanovskiy, Alexey; Anisimov, Anton S.; Nasibulin, Albert G.

doi:10.1364/oe.24.028768

Cited by 43 publications

(24 citation statements)

References 25 publications

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“…ISO provided unidirectional operation of the laser and secured SWCNTs from thermal damage by pump radiation. Saturable absorber consisted of thin layer of SWCNT placed between two FC/APC connectors by a dry-deposition technique [13]. A polarization controller (PC) was used to obtain a certain polarization state inside the cavity and particularly facilitated to find desirable operation mode.…”

Section: Methodsmentioning

confidence: 99%

Bismuth-doped fiber laser at 132 μm mode-locked by single-walled carbon nanotubes

et al. 2018

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Bismuth-doped fiber is a promising active media for pulsed lasers operating in various spectral regions. In this paper, we report on a picosecond mode-locked laser at a wavelength of 1.32 μm, based on a phosphosilicate fiber doped with bismuth. Stable self-starting generation of dissipative solitons, using single-walled carbon nanotubes (SWCNT) as a saturable absorber, was achieved. Evolution of the pulsed regime, depending on pump power, and stability of the pulsing were investigated.

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Section: Methodsmentioning

confidence: 99%

Bismuth-doped fiber laser at 132 μm mode-locked by single-walled carbon nanotubes

et al. 2018

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“…Nevertheless, our goal was to fabricate a polymer-free CNT film, which also can improve the damage threshold. As shown recently by S. Kobtsev et al31, application of polymer-free CNT films solves the problems related to degradation of conventional polymer matrices of CNT-based SAs, and opens the possibility of fabricating longer-lasting and more reliable saturable absorbers. Another way of increasing of the damage threshold of the SA is to utilize the evanescent field interaction effect, i.e.…”

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confidence: 88%

CNT-based saturable absorbers with scalable modulation depth for Thulium-doped fiber lasers operating at 1.9 μm

Soboń

Dużyńska

Świniarski

et al. 2017

Sci Rep

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In this work, we demonstrate a comprehensive study on the nonlinear parameters of carbon nanotube (CNT) saturable absorbers (SA) as a function of the nanotube film thickness. We have fabricated a set of four saturable absorbers with different CNT thickness, ranging from 50 to 200 nm. The CNTs were fabricated via a vacuum filtration technique and deposited on fiber connector end facets. Each SA was characterized in terms of nonlinear transmittance (i.e. optical modulation depth) and tested in a Thulium-doped fiber laser. We show, that increasing the thickness of the CNT layer significantly increases the modulation depth (up to 17.3% with 200 nm thick layer), which strongly influences the central wavelength of the laser, but moderately affects the pulse duration. It means, that choosing the SA with defined CNT thickness might be an efficient method for wavelength-tuning of the laser, without degrading the pulse duration. In our setup, the best performance in terms of bandwidth and pulse duration (8.5 nm and 501 fs, respectively) were obtained with 100 nm thick CNT layer. This is also, to our knowledge, the first demonstration of a fully polarization-maintaining mode-locked Tm-doped laser based on CNT saturable absorber.

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“…The last one offers great advantages in terms of fabrication simplicity and reproducibility of SA parameters. This method was applied to deposit aerosol CVD synthesized SWCNTs on the fiber ferrule to work in the erbium [23] and bismuth [24] allfiber laser schemes. In this case the laser power is limited to a few tens of mW determined by the damage threshold of the SWCNTs.…”

Section: Introductionmentioning

confidence: 99%

Dry-transfer technique for polymer-free single-walled carbon nanotube saturable absorber on a side polished fiber

Mkrtchyan

Gladush

Galiakhmetova

et al. 2019

Opt. Mater. Express

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We fabricate single-walled carbon nanotube saturable absorbers on a side-polished fiber by a dry transfer technique. We demonstrate that this method allows for the easy and robust implementation of polymer-free carbon nanotube film for an evanescent field interaction in the fiber laser cavity. The high-quality single-walled carbon nanotubes are synthesized by the aerosol CVD method with absorption maximum tuned to an erbium doped fiber laser emission line. The Q-switch and mode-lock regimes as well as the harmonic mode-lock regime with the 79th order are successfully demonstrated with this approach. Critical power for damage threshold is estimated.

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Ultrafast all-fibre laser mode-locked by polymer-free carbon nanotube film

Cited by 43 publications

References 25 publications

Bismuth-doped fiber laser at 132 μm mode-locked by single-walled carbon nanotubes

Bismuth-doped fiber laser at 132 μm mode-locked by single-walled carbon nanotubes

CNT-based saturable absorbers with scalable modulation depth for Thulium-doped fiber lasers operating at 1.9 μm

Dry-transfer technique for polymer-free single-walled carbon nanotube saturable absorber on a side polished fiber

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