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Resonant cavity linear interferometric intensity modulator.

Nazanin Hoghooghi1, Ibrahim Ozdur, Mehmetcan Akbulut

  • 1CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816-2700, USA. nazanin@creol.ucf.edu

Optics Letters
|April 23, 2010
PubMed
Summary
This summary is machine-generated.

We developed a novel optical intensity modulator using injection locking. This device offers a linear response, high bandwidth, and low drive voltage, enabling advanced optical communication systems.

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Area of Science:

  • Photonics
  • Optical Communications
  • Semiconductor Devices

Background:

  • Traditional intensity modulators often suffer from nonlinearities and limited bandwidth.
  • Achieving high linearity and low drive voltage simultaneously is a significant challenge in optical modulation.

Purpose of the Study:

  • To propose and demonstrate a novel intensity modulator with a linear transfer function.
  • To achieve multigigahertz bandwidth, optical gain, and very low V(pi) for improved optical modulation.

Main Methods:

  • Utilizing injection locking of a resonant cavity with gain.
  • Implementing the arcsine phase response of the injection-locked cavity in a Mach-Zehnder interferometer.
  • Fabricating and testing the proposed modulator.

Main Results:

  • Demonstrated a modulator with a linear transfer function.
  • Achieved a 5 GHz bandwidth.
  • Measured a V(pi) of approximately 2.6 mV and a 95 dB spur-free dynamic range.

Conclusions:

  • The proposed injection-locked resonant cavity modulator offers true linear performance.
  • This technology enables high-performance optical modulation with significant advantages over existing methods.
  • Represents a key advancement for high-speed optical communication and signal processing.