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          -band ultrafast fiber laser mode locked by carbon nanotubes

Sun, Zhipei; Rozhin, Aleksey; Wang, Frank; Scardaci, Vittorio; Milne, W. I.; White, IH; Hennrich, Frank; Ferrari, Andrea C.

doi:10.1063/1.2968661

Cited by 114 publications

(84 citation statements)

References 33 publications

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“…The nonlinear operation in terms of modulation depth and non-saturable absorption is comparable to that of the CNT-based devices reported in the Refs. [14,19,21,23].…”

Section: Mw (266 Mw/cmmentioning

confidence: 99%

A stable, wideband tunable, near transform-limited, graphene-mode-locked, ultrafast laser

et al. 2010

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“…The nonlinear operation in terms of modulation depth and non-saturable absorption is comparable to that of the CNT-based devices reported in the Refs. [14,19,21,23].…”

Section: Mw (266 Mw/cmmentioning

confidence: 99%

A stable, wideband tunable, near transform-limited, graphene-mode-locked, ultrafast laser

et al. 2010

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“…For example the use of SWNTs as saturable absorbers 9-15 suffices diameter selection and benefits from the presence of small bundles. [9][10][11][12] When tubes are used as filters, 16 only material above or below a certain diameter is required. 16 m/s separation is fundamental for applications such as transparent conductors.…”

Section: Introductionmentioning

confidence: 99%

Density Gradient Ultracentrifugation of Nanotubes: Interplay of Bundling and Surfactants Encapsulation

et al. 2010

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Density gradient ultracentrifugation (DGU) has emerged as a promising tool to prepare chirality enriched nanotube samples. Here, we assess the performance of different surfactants for DGU. Bile salts (e.g., sodium cholate (SC), sodium deoxycholate (SDC), and sodium taurodeoxycholate (TDC)) are more effective in individualizing Single Wall Carbon Nanotubes (SWNTs) compared to linear chain surfactants (e.g., sodium dodecylbenzene sulfonate (SDBS) and sodium dodecylsulfate (SDS)) and better suited for DGU. Using SC, a narrower diameter distribution (0.69-0.81 nm) is achieved through a single DGU step on CoMoCAT tubes, when compared to SDC and TDC (0.69-0.89 nm). No selectivity is obtained using SDBS, due to its ineffectiveness in debundling. We assign the reduced selectivity of dihydroxy bile salts (SDC and TDC) in comparison with trihydroxy SC to the formation of secondary micelles. This is determined by the number and position of hydroxyl (-OH) groups on the R-side of the steroid backbone. We also enrich CoMoCAT SWNTs in the 0.84-0.92 nm range using the Pluronic F98 triblock copolymer. Mixtures of bile salts (SC) and linear chain surfactants (SDS) are used to enrich metallic and semiconducting laser-ablation grown SWNTs. We demonstrate enrichment of a single chirality, (6,5), combining diameter and metallic versus semiconducting separation on CoMoCAT samples.

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“…Alternative saturable absorbers based on single wall carbon nanotubes (SWNTs) and graphene are at the centre of an intense research effort [7,8], due to their broad operation range, low saturation power, easy fabrication, mechanical and environmental robustness, and quick recovery times . These have been used to mode-lock fiber [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], waveguide [24], solid-state [25][26][27], and semiconductor lasers [28]. Present mode-locking technology typically relies on soliton-like operation.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast stretched-pulse fiber laser mode-locked by carbon nanotubes

et al. 2010

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Ultrafast fiber sources having short pulses, broad bandwidth, high energy, and low amplitude fluctuations have widespread applications. Stretched-pulse fiber lasers, incorporating segments of normal and anomalous dispersion fibers, are a preferred means to generate such pulses. We realize a stretched-pulse fiber laser based on a nanotube saturable absorber, with 113 fs pulses, 33.5 nm spectral width and ~0.07% amplitude fluctuation, outperforming current nanotube-based designs.

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L -band ultrafast fiber laser mode locked by carbon nanotubes

Abstract: We fabricate a nanotube-polyvinyl alcohol saturable absorber with a broad absorption at 1.6 m. We demonstrate a pulsed fiber laser working in the telecommunication L band by using this composite as a mode locker. This gives ϳ498Ϯ 16 fs pulses at 1601 nm with a 26.7 MHz repetition rate.

Cited by 114 publications

References 33 publications

A stable, wideband tunable, near transform-limited, graphene-mode-locked, ultrafast laser

A stable, wideband tunable, near transform-limited, graphene-mode-locked, ultrafast laser

Density Gradient Ultracentrifugation of Nanotubes: Interplay of Bundling and Surfactants Encapsulation

Ultrafast stretched-pulse fiber laser mode-locked by carbon nanotubes

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