Wavelength-Division-Multiplexed Photonic Switching System  Using Integrated Acoustooptic Switches

Goto, Nobuo; Miyazaki, Yasumitsu

doi:10.1143/jjap.39.3078

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…• All FBGs considered have an optimum apodized index change (55 dB isolation for 100 GHz spacing) and are designed in a two stage process that eliminates resonance occurring at the short-wavelength side of grating [45]. • Modified design of integrated acousto-optic switches that maintain the switched signal's polarization and eliminates the need for anisotropy for the waveguide material [46]. • The polarization dependent loss of fiber acoustic optic switches made negligible (reduced by over 15 dB) by twisting the waist of the asymmetric coupler [47].…”

Section: Internal Oxn Componentsmentioning

confidence: 99%

Optical hop number limits imposed by various 2 x 2 cross-connect node designs

Mutafungwa¹

2001

Opt. Express

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The success of transparent optical transport networks depends on the availability of optical cross-connect nodes (OXNs) that induce minimal impairments on the signals they cross-connect. This should extend the possible coverage and flexibility of path restoration within a meshed network topology by raising the upper bound on the achievable optical hop (traversable OXNs) number. We provide a brief survey and categorization of the currently proposed OXNs. Furthermore, the possible limits they impose on the number of hops are established by a series of transmission performance simulations. Microoptic and all-fiber OXNs are identified to be suitable for networks with a low connectivity and channel count. In case larger OXNs are needed, then microoptic and integrated OXNs provide a better option. The results obtained are applicable as guidelines for the deployment of future optical ring topologies.

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Section: Internal Oxn Componentsmentioning

confidence: 99%

Optical hop number limits imposed by various 2 x 2 cross-connect node designs

Mutafungwa¹

2001

Opt. Express

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“…8) We have investigated an application to photonic routing systems for optical code matching in the spectral or time domain for optical routing labels. [9][10][11] In this study, we investigate optical code matching in both spectral and time domains using integrated-optic collinear AO devices, which will be useful for increasing the flexibility of routing control and for increasing the number of optical codes in photonic routing systems. This code matching is a fundamental function to be required in label recognition.…”

Section: Introductionmentioning

confidence: 99%

Wavelength-Division-Multiplex Photonic Routers with Collinear Acoustooptic Processing for Optical Label Matching in Spectral and Time Domains

Goto

Miyazaki

2006

jjap

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A collinear acoustooptic (AO) switch has a feature of wavelength-selective switching for wavelength-division-multiplexed (WDM) signals. This feature can be used for photonic packet routing in WDM photonic networks. In this study, the application of collinear AO switches to a label recognition processor in a photonic routing system is investigated. An optical label is assumed to be encoded in spectral and time domains. Collinear AO switches are considered for use in label recognition by using multiple wavelength switching with rf control signals at multiple frequencies. By employing a combination of encoding in spectral and time domains, flexibility in routing control, and the number of represented labels can be increased. Numerical examples of label recognition are also presented.

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