skip to main content

Title: Chip-to-chip Optical Data Communications using Polarization Division Multiplexing
; ; ; ; ;
Award ID(s):
Publication Date:
Journal Name:
Proc. of IEEE High-Performance Extreme Computing Conference
Page Range or eLocation-ID:
1 to 8
Sponsoring Org:
National Science Foundation
More Like this
  1. Switched beam horn arrays at 60 GHz based on the substrate integrated waveguide (SIW) technology are presented for use in reconfigurable chip-to-chip communications. Each array has eight identical printed horn elements. The elements can be individually excited to produce eight directive endfire beams, at an angular spacing of 45°, in the azimuth plane. The arrays enable each chip to communicate with its eight surrounding neighbors. The side and back lobes of the element radiation pattern, however, causes interference to chips that are in the unintended directions. The wireless links are analyzed using the measured and simulated transmission coefficients between the arrays in the line-of-sight (LoS) and non-line-of-sight (NLoS) directions.
  2. Emerging embedded systems, such as autonomous robots/vehicles, demand a new system-on-a-chip (SoC) that is ultra-low power (mW or even sub-mW level) but highly robust. Such an SoC typically integrates heterogeneous building blocks for supporting a range of features, each ideally operating in an independent voltage and frequency (V/F) domain [1]. In such an architecture, a network-on-chip (NoC) has played a key role to enable high-speed and energy-efficient networking. However, it is increasingly challenging to meet a robustness target since each V/F domain uses a significantly different voltage, e.g., from nominal 1V to near-threshold voltage (NTV), and clock frequency, e.g., from hundreds of MHz to sub-MHz. Furthermore, any two clocks may have uncertain and time-varying phase and frequency relationships. These properties significantly worsen robustness, particularly metastability, in an NoC.