Carbon Nanotube-Based Photonic Devices: Applications in Nonlinear Optics

Martínez, Amós; Yamashita, Shinji

doi:10.5772/16527

Cited by 17 publications

(13 citation statements)

References 38 publications

(33 reference statements)

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“…To prepare our graphene-based SA, we adopted the conventional approach in which dispersions of graphene were sprayed onto a fiber patch cord end facet (or fiber ferrule) with N 2 gas [10]. We confirmed that no droplets were formed on the end facet of the fiber patch cord during spraying, which resulted in deposition of graphene and the formation of a homogeneous graphene layer.…”

Section: Preparation Of the Graphene-based Sa And Characterizationmentioning

confidence: 79%

“…As a simple alternative, CNTs have emerged as promising SAs because of their ultrafast recovery time, cost-effective production and ease of fiber integration [7,[10][11][12]. The bandgap of CNTs depends on the diameter and chirality of nanotubes [10]. A broadband SA is possible using CNTs with a wide diameter distribution [11].…”

Section: Introductionmentioning

confidence: 99%

“…However, their complex fabrication and narrow operational wavelength range limits their practical applications [6]. As a simple alternative, CNTs have emerged as promising SAs because of their ultrafast recovery time, cost-effective production and ease of fiber integration [7,[10][11][12]. The bandgap of CNTs depends on the diameter and chirality of nanotubes [10].…”

Section: Introductionmentioning

confidence: 99%

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Graphene-based passively mode-locked bidirectional fiber ring laser

Mamidala¹,

Woodward²,

Yang³

et al. 2014

Opt. Express

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We present an all-fiber bidirectional passively mode-locked soliton laser with a graphene-based saturable absorber for the first time to the best of our knowledge. Our design includes a four-port circulator to introduce different sections of cavity for the two counter-propagating pulses, so they have distinct output characteristics. Simultaneous bidirectional operation is achieved by appropriately adjusting the net cavity birefringence and loss. In the clockwise direction, the laser emits ~750 fs pulses at 1561.6 nm, with a repetition rate of 7.68 MHz. In the counter clockwise direction, the central wavelength, pulse width, and repetition rate are 1561.0 nm, ~850 fs, and 6.90 MHz, respectively.

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Section: Preparation Of the Graphene-based Sa And Characterizationmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Graphene-based passively mode-locked bidirectional fiber ring laser

Mamidala¹,

Woodward²,

Yang³

et al. 2014

Opt. Express

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“…CNTs are structures from the fullerene family, consisting of a honeycomb sheet of sp 2 bonded carbon atoms rolled seamlessly onto itself to form a cylinder [Mar11]. Their electronic properties are fully governed by the chiral vector ⃗ L, which describes the orientation of the tube axes with respect to the orientation of the honeycomb structure (shown in Fig. …”

Section: Carbon Nanotubesmentioning

confidence: 99%

New materials, regimes and applications of fibre laser techonology

Zhang,

Ferrari,

Obraztsova

et al. 2014

International Photonics and OptoElectronics Meetings

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Nonlinear optics enables the manipulation of spectral and temporal characteristics of optical pulses interacting with a dielectric medium. Optical fibres, as a uniquely practical medium, provide an environment for effectively exploiting the nonlinear effects. This has facilitated the rapid growing interest in this field focused on the investigation of fibrebased sources incorporated with various novel saturable absorber devices for ultrashort pulse generation.This thesis reports a series of experiments exploring the ongoing research in the field of nonlinear optics, including the development of ultrafast mode-locked fibre sources and their applications in supercontinumm generation and third order parametric interactions in new carbon materials.Firstly, the integration of carbon-based materials with rare-earth doped media allows the demonstration of ultrafast mode-locked laser sources operating at wavelengths across the near-infrared region in a compact, low cost and environmentally robust scheme.Power scaling of such sources can be achieved by operating in the all-normal dispersion regime making use of a glass-substrate saturable absorber device that exhibits a higher damage threshold.Supercontinuum generation has been used as an effective method for spectral broadening. Pumping with a conceptually simple and reliable fibre-based system, a continuum covering from 2 to 3 µm is generated in a highly nonlinear GeO 2 fibre. This experiment demonstrates a robust and long-term stable source of radiation in an important band, coincident with a portion of the atmospheric transmission window.Finally, the demonstration of a simple and compact nano-material based dual-wavelength system shows the performance of such devices as a simultaneous saturable absorber and passive synchroniser. An experimental study of coherent frequency mixing at large frequency shifts in a graphene sample, pumped by a two-colour fibre-integrated source, proves the strong nonlinear response of this new carbon material. Woodward who not only provided company inside and outside of the lab, but were also happy to discuss and help all matters of my work and life in UK. In particular, I would like to thank Ed for providing me with much needed support, interesting discussions (especially on food and culture) and continued collaboration since I joined the group. Tim, for making couplers for the Tm-system. Thanks to Tim, Robbie (shared the same office over the past three years!), Ed, and Rob for endless support, spending hours and hours proof reading chapters of this thesis and cheering me up all the time. Thanks to the visitor from A*STAR (Singapore), Dr. Dora Hu (more like a sister), for proof reading and encouraging me to relax during the thesis writing.

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“…These unique ranges of properties [3] result from the reduced dimensionality, inherent to nanosystems with carbon atoms. Carbon nanostructures (fullerenes, carbon nanotubes, carbon nanofibers…), discovered during last decades, have been subject of intensive research for a wide range of applications [4][5][6][7][8] These new forms of carbon are emerging as the main target of many researchers around the world in pursuing the next nanoscale devices [9][10][11][12][13][14]. Proprieties of nanomaterials in general and Carbon Nanostructures (CNSs) in particular can range in two groups.…”

Section: Introductionmentioning

confidence: 99%

Curvature, Hybridization and Contamination of Carbon Nanostructures Analysis Using Electron Microscopy and XANES Spectroscopy

Medjo¹,

Sendja²,

Mane³

2014

MSA

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The ability to control the nanoscale shape of carbon nanostructures during wide-scale synthesis process is an essential goal in research for Nanotechnology applications. This paper reports a significant progress toward that goal. Variant CVD has been used for the synthesis of the samples studied. Curvature, hybridization and contamination are analyzed using Electron Microscopies and XANES spectroscopy. The investigations of the results show that four types of samples are obtained. They are carbon nanotubes (CNTs), carbon nanofibers (CNFs), carbon nanowalls (CNWs) and carbon nanoparticles (CNPs). Almost all of them have catalyst nanoparticles (metal) on top in top growth model or on base in base growth model and encapsulated or adsorbed in sidewalls. The orientation of tubular carbon nanomaterials depends on operating parameters. They are classified in three groups: the poorly oriented, the medium oriented and the highly oriented. Their contamination (radicals, atoms and molecules) and hybridization are intrinsically related to the curvature of their graphene layers. XANES spectroscopy allows quantitative characterization of nanomaterials.

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Carbon Nanotube-Based Photonic Devices: Applications in Nonlinear Optics

Cited by 17 publications

References 38 publications

Graphene-based passively mode-locked bidirectional fiber ring laser

Graphene-based passively mode-locked bidirectional fiber ring laser

New materials, regimes and applications of fibre laser techonology

Curvature, Hybridization and Contamination of Carbon Nanostructures Analysis Using Electron Microscopy and XANES Spectroscopy

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