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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 2 — Jan. 21, 2008
  • pp: 1056–1061

On the estimation of target spectrum for filter-array based spectrometers

Cheng-Chun Chang and Heung-No Lee  »View Author Affiliations

Optics Express, Vol. 16, Issue 2, pp. 1056-1061 (2008)

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Miniature spectrometers have been drawn researchers much attention due to its wide variety of possible applications. In this paper, we show the achievability of a fine spectrometer on-a-chip based on a low-performance, low-cost filter-array. A low quality filter-array is augmented with digital signal processing techniques. A series of estimators for recovering target spectrum is introduced. By exploiting non-negative nature of spectral content, a non-negative least-square algorithm is found particularly useful for spectrum recovery. The concept is verified in a hardware implementation.

© 2008 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6190) Spectroscopy : Spectrometers

ToC Category:

Original Manuscript: December 10, 2007
Revised Manuscript: January 10, 2008
Manuscript Accepted: January 11, 2008
Published: January 14, 2008

Cheng-Chun Chang and Heung-No Lee, "On the estimation of target spectrum for filter-array based spectrometers," Opt. Express 16, 1056-1061 (2008)

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