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Characterization of Anisotropic Leaky Mode Modulators for Holovideo
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Low-voltage differentially-signaled modulators.

William A Zortman1, Anthony L Lentine, Douglas C Trotter

  • 1Applied Photonic Microsystems, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. wzortm@sandia.gov

Optics Express
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

This study introduces a novel silicon resonator for exascale computing, achieving a 5dB extinction ratio with low power consumption (3fJ/bit) and 500mV signals at 10Gbps. This advancement enables efficient optical interconnects for high-performance computing.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • Semiconductor Devices

Background:

  • Exascale computing demands energy-efficient optical interconnects.
  • Low voltage signaling and reduced power consumption are critical for viable optical solutions.
  • Existing modulator designs face challenges in meeting these stringent requirements.

Purpose of the Study:

  • To demonstrate a differentially signaled silicon resonator for low-power, low-voltage optical modulation.
  • To evaluate the performance of this novel resonator in terms of extinction ratio, energy consumption, and signal amplitude.
  • To explore the design flexibility offered by differentially signaled resonators.

Main Methods:

  • Fabrication and characterization of a novel differentially signaled silicon resonator.
  • Testing modulation performance at 10Gbps with varying voltage amplitudes.
  • Measurement of extinction ratio and energy per bit (fJ/bit).

Main Results:

  • Demonstration of the first differentially signaled silicon resonator.
  • Achieved a 5dB extinction ratio with 3fJ/bit energy consumption and 500mV amplitude at 10Gbps.
  • Modulation with asymmetric amplitudes as low as 150mV yielded a 3dB extinction ratio at 10Gbps.

Conclusions:

  • Differentially signaled silicon resonators offer a promising solution for energy-efficient optical interconnects in exascale computing.
  • The demonstrated device operates with significantly reduced voltage and power requirements.
  • These resonators simplify modulator design and eliminate the need for specialized drivers, expanding design possibilities.