Optical packet synchronization device based on acousto-optic interaction: characterization and performance

Quintard, Véronique; Pérennou, André; Naciri, Y.; Bihan, Jean Le

doi:10.1088/1464-4258/3/4/360

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…We have demonstrated the adaptability of such an acousto-optic cell for the deflection function of optical packets at 1.55-m wavelength. 8,9 But another optical function for telecommunication networks needs to be developed, namely, optical packet switching from N ways to N ways. Optical packets, at the entrance of the switch, are synchronized with respect to a reference clock, and must be directed toward the right optical fiber so as to be dispatched to the users.…”

Section: ã2 Switch Architecturementioning

confidence: 99%

“…8,9 The crystal is tellurium dioxide (TeO 2 ) and the optical beam wavelength is 1.55 m. Recently, still using acousto-optic interaction, we have taken an interest in a 2ϫ2 switching function for telecommunication applications. 10 This function needs to create simultaneously two Bragg gratings, each one associated with only one of the two inputs.…”

Section: Introductionmentioning

confidence: 99%

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Intermodulation product effects on the working of a phased-array transducer acousto-optic switch

et al. 2004

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Acousto-optic devices play an important role in the field of optical information and communication. For a few years, we have worked on acousto-optic deflection in the Bragg regime at 1.55-m wavelength, by controlling the rf signal applied to the piezoelectric transducer. Recently, still using the acousto-optic interaction, we have taken an interest in the 2ϫ2 switching function. We present an acousto-optic switch architecture based on phased-array transducers. In the same crystal, we superimpose two diffraction gratings created by two rf signals. Generating a phase shift on a rf signal applied between successive elementary transducers allows us to tilt one grating so as to interconnect inputs to outputs. To predict and study some physical phenomena generated in this switch architecture, we present some characterizations made on a monotransducer cell. We point out the optical cross talk between output paths (influence of the intermodulation products due to the superimposition of two rf signals on the same transducer).

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Section: ã2 Switch Architecturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intermodulation product effects on the working of a phased-array transducer acousto-optic switch

et al. 2004

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“…We have demonstrated the adaptability of such an acousto-optic cell for the deflection function of optical packets at 1.55 µm wavelength [7,8]. But another optical function for telecommunication networks needs to be developed; namely optical packet switching from N ways to N ways.…”

Section: ×2 Switch Architecturementioning

confidence: 99%

“…For a few years, we have worked on acousto-optic deflection in Bragg regime, from one path towards N directions, by controlling the RF signal applied on the piezoelectric transducer [7,8]. The crystal is tellurium dioxide (TeO 2 ) and the optical beam wavelength is 1.55 µm.…”

Section: Introductionmentioning

confidence: 99%

Characterizations for an acousto-optic switch architecture with phased array transducers

et al. 2002

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Acousto-optic devices play an important role in the field of optical information and communication. For a few years, we have worked upon acousto-optic deflection in the Bragg regime, at 1.55 µm wavelength, by controlling the RF signal applied to the piezoelectric transducer. Recently, still using the acousto-optic interaction, we have taken an interest in the 2×2 switching function.In this paper, we present an acousto-optic switch architecture based on phased array transducers. In the same crystal, we superimpose two diffraction gratings created by two RF signals. Generating a phase shift on an RF signal applied between successive elementary transducers allows us to tilt one grating so as to interconnect inputs to outputs. In order to predict and to study some physical phenomena generated in this switch architecture, we present some characterizations made upon a mono-transducer cell. We point out the optical cross talk between output paths (influence of the intermodulation products due to the superimposition of two RF signals on the same transducer) and the electrical cross talk influence on optical diffraction efficiency. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 4870 425 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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“…This problem has inspired active research in all optical switching systems [1,2]. Among several proposed technologies for realizing optical switches, the acousto-optic technology seems to be attractive because it presents some interesting characteristics such as short configuration time, and no moving parts [3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the crosstalk and losses in a multi-transducer acousto-optic switch

Aboujeib

Pérennou

Quintard

et al. 2008

2008 3rd International Conference on Information and Communication Technologies: From Theory to Applications

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We present theoretical and experimental study of losses and crosstalk in a 2×2 optical switch based on a multitransducers acousto-optic TeO 2 deflector. The deflector is realized by superimposition of two phase gratings in the crystal. This study shows that the losses are not significant and that the crosstalk values at the switch outputs depend on the working frequencies. The appropriate choice of the frequencies allows to carry out the switch with crosstalk less than -50dB at the two outputs of the switch and in the two configurations. This acoustooptic switch with phased array transducers is suitable for telecommunication applications.

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Optical packet synchronization device based on acousto-optic interaction: characterization and performance

Cited by 7 publications

References 4 publications

Intermodulation product effects on the working of a phased-array transducer acousto-optic switch

Intermodulation product effects on the working of a phased-array transducer acousto-optic switch

Characterizations for an acousto-optic switch architecture with phased array transducers

Evaluation of the crosstalk and losses in a multi-transducer acousto-optic switch

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