Multiaperture planar waveguide spectrometer formed by arrayed Mach-Zehnder interferometers.

  title={Multiaperture planar waveguide spectrometer formed by arrayed Mach-Zehnder interferometers.},
  author={Mirosław Florjańczyk and Pavel Cheben and Siegfried Janz and Alan Scott and Brian H Solheim and D. Xu},
  journal={Optics express},
  volume={15 26},
Concept, theory and simulations of a new type of waveguide device, a multiaperture Fourier-transform planar waveguide spectrometer, are presented. The spectrometer is formed by an array of Mach-Zehnder interferometers generating a wavelength dependent spatial fringe pattern at the array output. The input light spectrum is calculated using a discrete Fourier transformation of the output spatial fringes. The multiaperture input significantly increases the optical throughput (étendue) compared to… CONTINUE READING
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