Measurement of the dispersion induced by a slow-light system based on coupled active-resonator-induced transparency

Dumeige, Yannick; Nguyên, Thị Kim Ngân; Ghişa, Laura; Trebaol, Stéphane; Féron, Patrice

doi:10.1103/physreva.78.013818

Cited by 39 publications

(23 citation statements)

References 29 publications

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“…10 We have shown that this method can be applied to characterize resonators containing amplifying system or coupled active resonator systems which are attractive for dispersion tailoring and all optical signal processing applications. 13,[30][31][32] Assuming that faster scanning of the probe wavelength can be achieved in order to measure lower Q-factors than those characterized in this paper, this technique would also be of interest to characterize integrated microresonators whose coupling characteristics are not easily tunable. 33 …”

Section: Resultsmentioning

confidence: 97%

Dispersion properties of high-Q passive and active single or coupled resonators

et al. 2009

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conference 7226 « Advances in Slow and Fast Light II », Topic : Advanced Quantum and Optoelectronic Applications, Session: 6 : « Slow and Fast Light in Microresonators » [7226-28]International audienceWe present a simple method to determine simultaneously the transmission and dispersive properties of passive or active high Q-factor optical resonators. The method is based on cavity ring down spectroscopy where the probe wavelength is rapidly swept across the resonance. It has already been shown that this technique allows the loaded cavity lifetime of passive resonators to be obtained. Here we show that we can also infer the dispersion introduced by the resonator and the resonant gain in the case of active resonators. The method is tested on a model system consisting of fiber resonators. We applied the method to measure the intrinsic Q-factor of a passive MgF2 whispering gallery mode resonator. We also used it to characterize the high Q-factor of a system of coupled fiber resonators. Finally we show that the method can be used to determine the gain and dispersive properties of selective amplifiers such as Er3+ doped fiber resonators

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Section: Resultsmentioning

confidence: 97%

Dispersion properties of high-Q passive and active single or coupled resonators

et al. 2009

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“…The coupling of two resonators results in splitting of the frequency, which counteracts light absorption in one resonator and generates slow light by coupled resonator induced transparency. Dumeige [15] studied coupled resonator induced transparency in erbium-doped fibers and measured slow light signals by an interference method. Terrele [16] reported a Mach-Zehnder interferometric gyroscope based on a fiber ring coupled resonator; the sensitivity increased by 30% than measurements without slow light.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of slow light from coupled fiber ring resonators

Liu

Wang

et al. 2015

Instrumentation Science & Technology

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This paper optimizes the conditions for the formation of slow light produced by coupled fiber ring resonators. Investigated parameters include the number of rings, ring length, splitting ratio of couplers, and ring losses. The optimized parameters included two rings in the resonator, equal length of the rings, and splitting ratios of 90:10 and 50:50 for the couplers. Under these conditions, a slow light delay time of 32.0668 ns was achieved, which corresponds to a group velocity of 3.43 10 7 m/s.

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“…However, one established way of overcoming losses is by incorporating optical gain, creating an "active" system. [19][20][21][22][23] Features of gain enhancement have been theoretically analyzed, and experimentally studied in chains of plane-parallel Fabry-Perot resonators. 22 Recently, we have demonstrated collective modes in an amplifying linear array of spherical microdroplet resonators in non-contact mode and showed that these modes were realized by direct-coupling of the Fabry-Perot resonances of a spherical cavity.…”

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Experimental demonstration of small-angle bending in an active direct-coupled chain of spherical microcavities

Tiwari

Uppu

Mujumdar

2013

Applied Physics Letters

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We experimentally demonstrate collective amplified modes along bent chains of directly coupled, amplifying spherical microdroplet resonators. The chains, comprising ∼40 non-contacting resonators, were bent through angles up to ∼25°. The modal probability of the system shows a sharp drop upon bending through small angles (∼10°), and thereafter changes minimally under further bending. The frequency response is significantly maintained under bending. We numerically study the transmittance of a chain of non-contacting amplifying resonators using finite-difference-time-domain calculations, and observe that nanojet filamentation influences coupling at the bend. A self-correcting mechanism of propagation is observed, originating from the lensing effect of the spherical resonator.

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Measurement of the dispersion induced by a slow-light system based on coupled active-resonator-induced transparency

Cited by 39 publications

References 29 publications

Dispersion properties of high-Q passive and active single or coupled resonators

Dispersion properties of high-Q passive and active single or coupled resonators

Characteristics of slow light from coupled fiber ring resonators

Experimental demonstration of small-angle bending in an active direct-coupled chain of spherical microcavities

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