Mid-infrared silicon-on-insulator Fourier-transform spectrometer chip

Download
  1. Get@NRC: Mid-infrared silicon-on-insulator Fourier-transform spectrometer chip (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1109/LPT.2015.2496729
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleIEEE Photonics Technology Letters
ISSN1041-1135
1941-0174
Volume28
Issue4
Pages528531
SubjectSilicon photonics; Spectroscopy; Infrared
AbstractMid-infrared absorption spectroscopy is highly relevant for a wide range of sensing applications. In this letter, we demonstrate a Fourier-transform spectrometer chip based on the principle of spatial heterodyning implemented in the silicon-on-insulator waveguide platform, and operating near 3.75-μm wavelength. The spectrometer comprises a waveguide splitting tree feeding to an array of 42 Mach-Zehnder interferometers with linearly increasing optical path length differences. A spectral retrieval algorithm based on calibration matrices is applied to the stationary output pattern of the array, compensating for any phase and amplitude errors arising from fabrication imperfections. A spectral resolution below 3 nm is experimentally demonstrated.
Publication date
PublisherIEEE
LanguageEnglish
AffiliationInformation and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23000044
Export citationExport as RIS
Report a correctionReport a correction
Record identifiere1427247-f7f5-4464-93f8-6f578cfca0c8
Record created2016-05-31
Record modified2016-05-31
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)