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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Generalized grating equation for virtually-imaged phased-array spectral dispersers.

Albert Vega1, Andrew M Weiner, Christopher Lin

  • 1Department of Electrical and Computer Engineering, Purdue University, 465 Northwestern Avenue, Electrical Engineering Building, West Lafayette, Indiana 47907-20365, USA. vegaa@purdue.edu

Applied Optics
|July 15, 2003
PubMed
Summary

We derived an approximate spectral dispersion law for the virtually-imaged phased array (VIPA), a device used for high-resolution spectral dispersion. Experimental results confirmed our analytical findings for this key optical component.

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Area of Science:

  • Optics and Photonics
  • Spectroscopy
  • Optical Engineering

Background:

  • The virtually-imaged phased array (VIPA) is an etalon-based optical device.
  • VIPAs offer potential for high-resolution spectral dispersion applications.
  • Wavelength division multiplexing (WDM) systems require efficient spectral dispersers.

Purpose of the Study:

  • To develop an approximate analytical spectral dispersion law for the VIPA.
  • To experimentally validate the derived dispersion law.
  • To assess the suitability of VIPA for WDM applications.

Main Methods:

  • Derivation of an approximate analytical model for VIPA spectral dispersion.
  • Experimental setup to measure VIPA spectral dispersion characteristics.
  • Comparison of theoretical predictions with experimental data.

Main Results:

  • An approximate analytical spectral dispersion law for VIPA was successfully formulated.
  • Experimental measurements confirmed the accuracy of the derived dispersion law.
  • The results indicate VIPA's viability as a high-resolution spectral disperser.

Conclusions:

  • The developed analytical law accurately describes VIPA spectral dispersion.
  • Experimental validation supports the theoretical model.
  • VIPA is a promising component for high-resolution spectral dispersion in WDM systems.