Compact multichannel MEMS based spectrometer for FBG sensing

Denis Ganziy, Bjarke Rose, Ole Bang

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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We propose a novel type of compact multichannel MEMS based spectrometer, where we replace the linear detector with a Digital Micromirror Device (DMD). The DMD is typically cheaper and has better pixel sampling than an InGaAs detector used in the 1550 nm range, which leads to cost reduction and better performance. Moreover, the DMD is a 2D array, which means that multichannel systems can be implemented without any additional optical components in the spectrometer. This makes the proposed interrogator highly cost-effective. The digital nature of the DMD also provides opportunities for advanced programmable spectroscopy.
Original languageEnglish
Title of host publicationProceedings of SPIE
Number of pages4
PublisherSPIE - International Society for Optical Engineering
Publication date2017
Article number103230B
Publication statusPublished - 2017
Event25th International Conference on Optical Fiber Sensors - Jeju, Korea, Republic of
Duration: 24 Apr 201728 Apr 2017


Conference25th International Conference on Optical Fiber Sensors
Country/TerritoryKorea, Republic of
Series2017 25th Optical Fiber Sensors Conference (ofs)

Bibliographical note

Copyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


  • Detectors
  • Fiber gratings
  • Signal to noise ratio
  • Spectroscopy
  • Mirrors
  • Wavelength measurement
  • FBG interrogation
  • MEMS
  • DMD
  • DLP
  • spectroscopy


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