PID controlled thermal management in photonic network-on-chip

Dang, Dharanidhar; Mahapatra, Rabi; Kim, Eun Jung

doi:10.1109/iccd.2015.7357079

Cited by 2 publications

(2 citation statements)

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“…The static power consumption of nanophotonic interconnects is mostly due i) losses experienced by optical signals, which call for high laser power, and ii) optical devices calibration [10]. At the link level, PID controllers are designed to compensate the effect of temperature variation on the wavelength shift of ring resonator resonance [11]. While the design in [11] involves to monitor received optical signals, the controlled proposed in [12] relies on sensors monitoring the temperature of ring resonators.…”

Section: A Optical Network On Chipmentioning

confidence: 99%

“…At the link level, PID controllers are designed to compensate the effect of temperature variation on the wavelength shift of ring resonator resonance [11]. While the design in [11] involves to monitor received optical signals, the controlled proposed in [12] relies on sensors monitoring the temperature of ring resonators. At the network level, reconfigurable interconnects were proposed to optimize the use of optical channels [5], thus allowing to reduce the resources overhead.…”

Section: A Optical Network On Chipmentioning

confidence: 99%

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Non-Volatile Phase Change Material based Nanophotonic Interconnect

Zolfaghari

Ortiz

Killian

et al. 2022

2022 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Integrated optics is a promising technology to take advantage of light propagation for high throughput chip-scale interconnects in many core architectures. A key challenge for the deployment of nanophotonic interconnects is their high static power, which is induced by signal losses and devices calibration. To tackle this challenge, we propose to use Phase Change Material (PCM) to configure optical paths between writers and readers. The non-volatility of PCM elements and the high contrast between crystalline and amorphous phase states allow to bypass unused readers, thus reducing losses and calibration requirements. We evaluate the efficiency of the proposed PCM-based interconnects using system level simulations carried out with SNIPER manycore simulator. For this purpose, we have modified the simulator to partition clusters according to executed applications. Simulation results show that bypassing readers using PCM leads up to 52% communication power saving.

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