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Quasi-light Storage for Optical Data Packets
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Optical peaking enhancement in high-speed ring modulators.

J Müller1, F Merget1, S Sharif Azadeh1

  • 1Integrated Photonics Laboratory, RWTH Aachen, Sommerfeldstr. 14, D-52074 Aachen, Germany.

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|September 12, 2014
PubMed
Summary
This summary is machine-generated.

Ring resonator modulators (RRMs) achieve higher data rates by analyzing transient dynamics. This research extends their electro-optic bandwidth beyond 40 GHz, improving optical communication performance.

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Area of Science:

  • Photonics and Optical Communications
  • Integrated Optics
  • Semiconductor Devices

Background:

  • Ring resonator modulators (RRMs) offer compactness and low power for optical links.
  • Existing RRMs face bandwidth limitations for higher data rates.
  • Scalability of short-distance optical links requires advanced modulator performance.

Purpose of the Study:

  • To extend the data rate capabilities of ring resonator modulators (RRMs).
  • To derive and verify analytical models for RRM electro-optic response and sideband generation.
  • To improve RRM performance by leveraging transient time dynamics.

Main Methods:

  • Derivation and experimental verification of closed-form equations for electro-optic response.
  • Analysis of asymmetric sideband generation due to transient dynamics.
  • Application of a small-signal analytical expression for peaking in electro-optic response.
  • Integration with an equivalent circuit description and peaking amplifier model.

Main Results:

  • Extended electro-optic bandwidth of RRMs beyond 40 GHz.
  • Successfully opened eye diagrams at 32, 40, and 44 Gbps, overcoming intersymbol interference.
  • Excellent agreement between predicted and experimental results for peaking and sideband generation.
  • Demonstrated significant improvement in RRM device performance.

Conclusions:

  • Transient time dynamics are crucial for enhancing RRM bandwidth beyond classical limits.
  • The derived analytical models provide a pathway for optimizing RRM performance in high-speed optical links.
  • This work enables RRMs to meet the demanding scalability requirements of modern optical communication systems.