Highly efficient Brillouin slow and fast light using As<sub>2</sub>Se<sub>3</sub>chalcogenide fiber

Song, Kwang Yong; Abedin, Kazi S.; Hotate, Kazuo; Gonzalez-Herraez, Miguel; Thévenaz, Luc

doi:10.1364/oe.14.005860

Cited by 113 publications

(101 citation statements)

References 19 publications

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“…4, we determined the Brillouin coefficient to be (3.9 ± 0.4) × 10 -9 m.W -1 for the As 2 S 3 and (6.75 ± 0.35) x 10 -9 m.W -1 for As 2 Se 3 . The value for the As 2 Se 3 is close to the only other previously published result for this composition [22]. The value for the As 2 S 3 fiber, although lower than the one for As 2 Se 3 , is still two orders of magnitude higher than that for fused silica ( ~4.4 ×10 -11 m.W -1 ) [22,24].…”

Section: Brillouin Scatteingsupporting

confidence: 85%

“…A figure of merit (FOM) has been proposed [22] in order to quantify the usefulness of a given fiber for slow-light based applications. The Brillouin gain is considered a positive factor while the length, the refractive index, and the power are considered as negative factors impacting the response time and the onset of additional nonlinear effects in the system.…”

Section: Brillouin Scatteingmentioning

confidence: 99%

“…We used this last, fairly simple expression to compare the most representative fibers considered so far: silica [25,26], high-nonlinearity bismuth fiber [27,28], As 2 Se 3 fiber [22], along with the results reported here. The comparison is provided in Table 3, with all the data reported for experiments without polarization control (k=0.5).…”

Section: Brillouin Scatteingmentioning

confidence: 99%

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Nonlinear Properties of Chalcogenide Glass Fibers

Sanghera¹,

Aggarwal²,

Shaw³

et al. 2010

Frontiers in Guided Wave Optics and Optoelectronics

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Chalcogenide glasses have demonstrated high third-order Kerr (χ (3) ) nonlinearities up to 1000x higher than silica glass which make them attractive for applications such as nonlinear switching, optical regeneration, Raman amplification, parametric amplification, and supercontinuum generation. Poling of chalcogenide glasses to induce an effective second order (χ (2) ) nonlinearity has also been demonstrated and opens the possibility for the use of poled glass waveguides for applications such as frequency conversion or electro-optic modulation. Stimulated Brillouin scattering (SBS) has also been investigated in As 2 S 3 and As 2 Se 3 single-mode fibers. The threshold intensity for the stimulated Brillouin scattering process was measured and used to estimate the Brillouin gain coefficient. Preliminary results indicate record high values for the figure of merit and theoretical gain, compared to silica, which bodes well for slow-light based applications in chalcogenide fibers.

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Section: Brillouin Scatteingsupporting

confidence: 85%

Section: Brillouin Scatteingmentioning

confidence: 99%

Section: Brillouin Scatteingmentioning

confidence: 99%

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Nonlinear Properties of Chalcogenide Glass Fibers

Sanghera¹,

Aggarwal²,

Shaw³

et al. 2010

Frontiers in Guided Wave Optics and Optoelectronics

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“…One of the first attempts was using bismuth oxide optical fibres 22 , which gave a significant improvement compared with silica fibres 18 -a fivefold reduction of the group velocity in a 2-m fibre using just 400 mW of continuous-wave pump power. An even higher efficiency was obtained by using As 2 Se 3 chalcogenide fibres 23 , for which a 46-ns delay was realized in a 5-m fibre using only 60 mW of pump power 24 . For a better comparison these results can be reformulated in terms of comparative lengths: using the same pump power, 1 metre of chalcogenide fibre will show the same delay as 4 metres of bismuth oxide fibre or 110 metres of standard silica fibre.…”

Section: Review Article | Focusmentioning

confidence: 99%

Slow and fast light in optical fibres

2008

Self Cite

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The ubiquitous role of optical fibres in modern photonic systems has stimulated research to realize slow and fast light devices directly in this close-to-perfect transmission line. Recent progress in developing optically controlled delays in optical fibres, operating under normal environmental conditions and at telecommunication wavelengths, has paved the way towards real applications for slow and fast light. This review presents the state-of-the-art research in this fascinating field and possible outcomes in the near future. The development of high-quality silica optical fibres with excellent transmission capabilities has directly contributed to the tremendous expansion of the global communication network. The success is due to their unrivalled low-loss performance (typically 50% of light is still present after a 15-km transmission distance), their wide bandwidth, which allows terabits per second of information to be transmitted over more than 1,000 km, and also their extremely low production cost. Realizing tunable delays for optical data signals directly in fibres, as well as integrating such devices into existing communication networks, is certainly a very attractive approach for optimizing the flow of data traffic in future networks. The approach may also enhance the capabilities of optical and microwave-on-optical-carrier signal processing. Given the limited possibilities for engineering the dispersion curve of standard single-mode fibres without creating complex photonic-crystal structures (see pages 448 and 465 of this issue 1,2 ), much research on fibre-based delays has been directed towards solutions based on spectral resonances to generate slow and fast light. The initial pioneering demonstrations of slow and fast light in various media all exploited narrow spectral resonances, typically created by electromagnetically induced transparency 3 or coherent population oscillation 4 . Narrow spectral resonances have a dramatic effect on optical propagation, as any sharp spectral change in the medium's transmission curve results in a steep quasi-linear variation of the effective refractive index with wavelength in the narrow spectral region near the resonance. This in turn results in a strong change in the group velocity at the exact centre of the resonance 5 . The velocity change is strongest for narrower spectral resonances (as explained in detail below) and for this reason, the early experiments were all carried out in special media, such as ultracold atomic gases or atomic transitions in a crystalline solid at a well-defined wavelength. Luc ThévenazWithin the resonance, the relationship between the change in the optical transmission and the delay can be determined as follows. The refractive-index change, Δn, as a function of the optical frequency, ν, is calculated using the Kramers-Kronig transformation, and the index change associated with the group velocity, Δn g , is then found using the relationship Δn g = Δn + ν(dΔn/dν) (ref. 5). Finally, the delay, ΔT, added to the normal transit time in the medium...

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“…In this paper, we support these earlier results with more experimental data and provide additional theoretical analysis. Note that a paper reporting SBS-based slow-light generation in a highly nonlinear chalcogenide fiber [11] has also recently been presented. This paper is organized as follows: Section II gives a brief theoretical insight into the slow-light effect; Section III describes the experimental setup used for our experiments; Section IV presents the experimental results obtained with the Bi-HNLF.…”

Section: Introductionmentioning

confidence: 99%

Slowing of Pulses to c/10 With Subwatt Power Levels and Low Latency Using Brillouin Amplification in a Bismuth-Oxide Optical Fiber

Misas

Petropoulos

Richardson

2007

J. Lightwave Technol.

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Abstract-We report the generation of slow light using Brillouin amplification in a short length of highly nonlinear bismuth-oxide fiber. By using just 2 m of fiber, we demonstrate a five-fold reduction in group velocity for ∼200-ns pulses, which we believe to be a record for a slow-light propagation in an optical fiber. Moreover, by virtue of the high nonlinearity per unit length of this fiber, we achieve this at a very modest pump power level of just ∼400 mW and with a low inherent device latency of 14 ns. These results highlight both the merits and practicality of using high nonlinearity nonsilica fibers for slow-light devices.

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Highly efficient Brillouin slow and fast light using As₂Se₃chalcogenide fiber

Cited by 113 publications

References 19 publications

Nonlinear Properties of Chalcogenide Glass Fibers

Nonlinear Properties of Chalcogenide Glass Fibers

Slow and fast light in optical fibres

Slowing of Pulses to c/10 With Subwatt Power Levels and Low Latency Using Brillouin Amplification in a Bismuth-Oxide Optical Fiber

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Highly efficient Brillouin slow and fast light using As2Se3chalcogenide fiber

Cited by 113 publications

References 19 publications

Nonlinear Properties of Chalcogenide Glass Fibers

Nonlinear Properties of Chalcogenide Glass Fibers

Slow and fast light in optical fibres

Slowing of Pulses to c/10 With Subwatt Power Levels and Low Latency Using Brillouin Amplification in a Bismuth-Oxide Optical Fiber

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Product

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Highly efficient Brillouin slow and fast light using As₂Se₃chalcogenide fiber