Multi-Octave, High Dynamic Range Operation of Low-Biased Modulators by Balanced Detection.

Abstract

An optical link is disclosed that is operated by a balanced detection technique so as to extend its linear dynamic range, yet substantially eliminate even-order harmonic distortion of the modulated signal. The modulator comprises two parallel arranged Mach Zehnder interferometers that respectively have a steady state DC voltage bias applied so that the operating points of the Mach Zehnder interferometers are selected to produce two separate modulated signals, one of which is later phase shifted by a phase shift device so as to provide an output that is combined with the other modulated signal in such a manner so as to cause a subtraction, leaving the final output signal substantially free of any unwanted even order harmonic components in order to provide for a multioctave response characteristic.

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Document Details

Document Type
Technical Report
Publication Date
Jul 27, 1995
Accession Number
ADD017799

Entities

People

  • Ganesh K. Gopalakrishnan
  • Robert P. Moeller
  • William N. Burns

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Communication Systems
  • Detection
  • Detectors
  • Distortion
  • Dynamic Range
  • Electric Fields
  • Frequency
  • High Dynamic Range
  • Interferometers
  • Mach Zehnder Interferometers
  • Modulation
  • Modulators
  • Optical Fibers
  • Optical Modulators
  • Patent Applications
  • Phase Shift
  • Steady State

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Fluid Dynamics.
  • Optical Physics and Photonics.