Contention resolution and variable length optical packet switching using the active vertical-coupler-based optical Crosspoint switch

Geldenhuys, R.; Merwe, J.S. Van der; Thakulsukanant, Kornkamol; Wang, Z.; Chi, Nan; Yu, S.

doi:10.1016/j.osn.2010.10.001

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…This technology would then allow, the migration of fiber-based delaying and TSI deployments demonstrated so far [48][49][50] towards ultra-compact and highly-functional modules suitable for cooperation with integrated switch matrix designs, such as the one presented in Section 2.…”

Section: Conceptmentioning

confidence: 99%

Silicon Photonics towards Disaggregation of Resources in Data Centers

et al. 2018

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Abstract:In this paper, we demonstrate two subsystems based on Silicon Photonics, towards meeting the network requirements imposed by disaggregation of resources in Data Centers. The first one utilizes a 4 × 4 Silicon photonics switching matrix, employing Mach Zehnder Interferometers (MZIs) with Electro-Optical phase shifters, directly controlled by a high speed Field Programmable Gate Array (FPGA) board for the successful implementation of a Bloom-Filter (BF)-label forwarding scheme. The FPGA is responsible for extracting the BF-label from the incoming optical packets, carrying out the BF-based forwarding function, determining the appropriate switching state and generating the corresponding control signals towards conveying incoming packets to the desired output port of the matrix. The BF-label based packet forwarding scheme allows rapid reconfiguration of the optical switch, while at the same time reduces the memory requirements of the node's lookup table. Successful operation for 10 Gb/s data packets is reported for a 1 × 4 routing layout. The second subsystem utilizes three integrated spiral waveguides, with record-high 2.6 ns/mm 2 , delay versus footprint efficiency, along with two Semiconductor Optical Amplifier Mach-Zehnder Interferometer (SOA-MZI) wavelength converters, to construct a variable optical buffer and a Time Slot Interchange module. Error-free on-chip variable delay buffering from 6.5 ns up to 17.2 ns and successful timeslot interchanging for 10 Gb/s optical packets are presented.

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Section: Conceptmentioning

confidence: 99%

Silicon Photonics towards Disaggregation of Resources in Data Centers

et al. 2018

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“…One of the key building blocks of next generation optical packet flow networks [1] are Time Slot Interchangers (TSI), allowing programmable time-slot rearrangement of optical packets to reduce contention and provide quality of service (QoS) features. Optical TSI designs, have been extensively studied in the past [2] revealing significant advantages in optical networks, while they have already been demonstrated in different technology implementations utilizing optical switches and fiber-based delay lines [3][4][5]. Incorporating, however, these functionalities in a photonic router requires a technology platform that would allow for the deployment of both the switching elements and the required delay line stages as integrated structures, enabling ultra-compact and highly-functional TSI configurations suitable for cooperation with integrated switch matrix designs.…”

Section: Introductionmentioning

confidence: 99%

Optical Buffering and Time-Slot Interchanger with integrated Si-based delay lines

Moralis-Pegios

Mourgias-Alexandris

Terzenidis

et al. 2017

Advanced Photonics 2017 (IPR, NOMA, Sensors, Networks, SPPCom, PS)

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“…Carrier induced refractive index change is the work mechanism of many optical communication devices, such as optical switches [1] , wavelength converters [2] , etc. Under actual operating conditions, the temperatures of devices are fluctuant, which can influence the refractive index changes induced by carrier injection.…”

Section: Introductionmentioning

confidence: 99%