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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Published on: March 20, 2017

Statistical analysis of incoherent pulse shaping.

C Dorrer1

  • 1Laboratory for Laser Energetics, University of Rochester, 250 East River Rd, Rochester, NY, 14623, USA. cdorrer@lle.rochester.edu

Optics Express
|March 5, 2009
PubMed
Summary

This study analyzes incoherent pulse shaping using temporal gating and dispersive propagation. Temporal waveforms are synthesized by modulating the spectral density of incoherent optical sources, impacting signal-to-noise ratio.

Area of Science:

  • Optics and Photonics
  • Signal Processing

Background:

  • Incoherent optical sources offer unique properties for pulse shaping.
  • Temporal gating and dispersive propagation are key techniques in optical signal manipulation.

Purpose of the Study:

  • To analyze the performance of incoherent pulse shaping.
  • To understand waveform synthesis via spectral density modulation.
  • To investigate the signal-to-noise ratio limitations and enhancements.

Main Methods:

  • Analysis of temporal gating and dispersive propagation of broadband incoherent optical sources.
  • Spectral density modulation for temporal waveform synthesis.
  • Statistical analysis of signal-to-noise ratio considering polarization multiplexing and averaging.

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Main Results:

  • Average temporal intensity is proportional to spectral density, enabling waveform synthesis.
  • Shaped waveforms exhibit longer coherence times but maintain the probability density function of polarized incoherent sources.
  • The signal-to-noise ratio is fundamentally limited to 1 but can be improved through statistical methods.

Conclusions:

  • Incoherent pulse shaping is achievable through spectral density modulation.
  • The signal-to-noise ratio is a critical parameter affected by source properties and processing techniques.
  • Statistical analysis provides insights into optimizing signal quality for applications like high-speed photodetection.