Single Mode Optical Interconnects for future data centers

Vyrsokinos, K.; Moralis-Pegios, Miltiadis; Vagionas, Christos; Brimont, A.; Zanzi, Andrea; Sanchís, Pablo; Martí, J.; Kraft, Jochen; Rohracher, Karl; Dorrestein, Sander; Bogdan, M. M.; Pleros, Nikos

doi:10.1109/icton.2016.7550291

Cited by 2 publications

(4 citation statements)

References 3 publications

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“…The results have already been reported in [40], with crosstalk ranging from 8 dB to 12 dB for 1535 nm-1550 nm operation. The characterization of the switch in the time domain was performed by driving MZI#6 with RF signals, while the other MZIs were DC biased.…”

Section: Methodssupporting

confidence: 61%

“…Moreover, the transfer function of the 4 × 4 switch has been measured by injecting light in port#3, while switching to all output ports was realized via biasing the phase shifters from a DC source. The results have already been reported in [40], with crosstalk ranging from 8 dB to 12 dB for 1535 nm-1550 nm operation.…”

Section: Methodssupporting

confidence: 61%

“…Given the fact that the 4 × 4 switching matrix is capable of providing cross-talk values up to 12 dB when driven by a DC electrical source and operating under optimal driving conditions [40], the utilization of a current amplification stage for optimally biasing the MZIs could in principle improve crosstalk up to 5 dB at During Phase#1, each of the four packets is routed to a different output port based on its header information and the respective Port ID. At the end of Phase#1, the four BFs corresponding to the respective port IDs get a new label, resembling the case of a change in the network topology and the new location of resources.…”

Section: Resultsmentioning

confidence: 99%

“…Given the fact that the 4 × 4 switching matrix is capable of providing cross-talk values up to 12 dB when driven by a DC electrical source and operating under optimal driving conditions [40], the utilization of a current amplification stage for optimally biasing the MZIs could in principle improve crosstalk up to 5 dB at the cost of extra power consumption. Improving cross-talk performance of the switch beyond this point, would involve modifications to the switch design.…”

Section: Resultsmentioning

confidence: 99%

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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: Methodssupporting

confidence: 61%

Section: Methodssupporting

confidence: 61%

Section: Resultsmentioning

confidence: 99%

“…Given the fact that the 4 × 4 switching matrix is capable of providing cross-talk values up to 12 dB when driven by a DC electrical source and operating under optimal driving conditions [40], the utilization of a current amplification stage for optimally biasing the MZIs could in principle improve crosstalk up to 5 dB at the cost of extra power consumption. Improving cross-talk performance of the switch beyond this point, would involve modifications to the switch design.…”

Section: Resultsmentioning

confidence: 99%

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