A class of directional-coupler-based photonic switching networks

Jajszczyk, Andrzej

doi:10.1109/26.223784

Cited by 29 publications

(8 citation statements)

References 17 publications

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“…Figures 9 and 10 present network dimension limits caused by the system SNR and insertion loss, respectively. Same as Jajszczyk in [6], the following assumptions are made:…”

Section: Network Dimension Limitsmentioning

confidence: 99%

“…Multicast connection is a fundamental communication pattern in many modern applications, and especially required for telecommunication and parallel computing applications. However, only a few of current MIN architectures have multicast capability, such as PS/AC tree network [15], and Jajszczyk's network [6]. The basic multicast principle in these architectures is to use passive splitters to split each input signal into N parts, and then use active couplers/combiners to select the desired signal, and block noises.…”

Section: Introductionmentioning

confidence: 99%

“…During last several decades, many optical MIN architectures have been proposed, such as Clos network [2], Crossbar network [5], Benes network [1], Double crossbar network [7], AS/AC, PS/AC and AS/PC tree networks [15], Jajszczyk's network [6], and so on. Although they have their own strengths, there are two major issues that remain unsolved.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Multistage Network Architecture with Multicast and Broadcast Capability

et al. 2006

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In this paper, a new class of optical multistage interconnection network (MIN) architecture is presented, which is constructed utilizing a modularization approach rather than the traditional recursive or fixed exchange pattern methods. The modified architecture consists of an input module, an output module, two point-to-point (PTP) modules, and one modified multicast/broadcast (M/B) module(s). We also implement the multicast/broadcast module with WDM technique, which reduces the hardware cost required for multicast and the re-computation cost for a new connection. We show that it has the best application flexibility and provides multicast function without imposing significant negative impacts on the whole network. A new multicast connection pattern is also proposed in this paper, which makes it practical and economical to apply amplification in space-division networks. Compared with existing multicast architectures, this new architecture with Dilated Benes PTP modules has better performance in terms of system SNR, the number of switch elements, and system attenuation in point-to-point connections. Moreover, the multicast/broadcast module adopts wavelength division multiplexing (WDM) technique to increase its multicast/broadcast assignment. As a result, given m available distinguished wavelengths, one M/B module can support at most m M/B requests at the same time. The new proposed M/B module with WDM is more practical and economical to apply amplification in space-division networks.

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“…Figures 9 and 10 present network dimension limits caused by the system SNR and insertion loss, respectively. Same as Jajszczyk in [6], the following assumptions are made:…”

Section: Network Dimension Limitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel Multistage Network Architecture with Multicast and Broadcast Capability

et al. 2006

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“…Therefore, wide-band optical signals can be switched by using photonic switching which can provide larger bandwidth and saves optical-to-electrical (OlE) and electrical-to-optical (E/O) signal conversions. [13,14,16,17,28,29,30,31,33], that have been studied extensively in the electronic domain for multiprocessor systems. Basically, there are three kinds of dilated photonic switching networks: Blocking, Non-blocking, and Re-arrangeable networks.…”

Section: Introductionmentioning

confidence: 99%

Diagnosing cross talk faults in dilated omega photonic network

1998

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Photonic switching, is an essential synergetic approach in optical networks, providing virtually unlimited communication bandwidth and transparency to the data rate and encoding, has been developed to provide high bandwidth and avoid the repeated opticalto-electrical (OlE) and electrical-to-optical (E/O) signal conversions. The 2x2 directional coupler is a common switching element used in photonic switching networks.Due to the imperfect coupling energy in one path through the another path, crosstalk occurs. A faulty switch is defined as a switch that produces crosstalk beyond the acceptable level. A blocking network, say Dilated Omega Networks (DON), are discussed. One of the characteristics of DON is that the input signal and crosstalk signal will not pass through the same output switch. It relaxes the designs of diagnosing fault algorithm compared to that of Dilated Benes Networks, especially for the reduction of tests needed, saving time and effort for the cases, such as single-path-multiplefaults, multiple-path-multiple-faults and crosstalk symmetry. Detail proofs and more examples will be addressed in this paper.

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“…the total number of SEs that can cause crosstalk in the worst case is therefore ' 2 logz N -1 . The S N R can be calculated using an approach similar to that in [9].…”

Section: Signal To-noise Ratiomentioning

confidence: 99%

A space dilated lightwave network - a new approach

Suliman

Mohammad

Seman

10th International Conference on Telecommunications, 2003. ICT 2003.

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Abslmct-In this paper, the space dilation concept for reducing crosstalk in Ti:LiNbO, directional coupler-based photonic switches operating at a single wavelength is applied using a new approach. A novel switch architecture is proposed for unieast nonblocking photonic switching networks to fully exploit the advantages of this method. Some properties of the switch architecture are derived and analyzed. The performance of the switch is also discussed and compared with other well-known network architectures.

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A class of directional-coupler-based photonic switching networks

Cited by 29 publications

References 17 publications

A Novel Multistage Network Architecture with Multicast and Broadcast Capability

A Novel Multistage Network Architecture with Multicast and Broadcast Capability

Diagnosing cross talk faults in dilated omega photonic network

A space dilated lightwave network - a new approach

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