Wavelength-dispersive device based on a Fourier-transform Michelson-type arrayed waveguide grating

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DOIResolve DOI: http://doi.org/10.1364/OL.30.001824
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TypeArticle
Journal titleOptics Letters
Volume30
Issue14
Pages18241826; # of pages: 3
Subjectarrayed waveguide gratings; Fourier transform spectrometers; optical design techniques; silicon-on-insulator
AbstractWe propose a new type of arrayed waveguide grating (AWG) device that operates as a Fourier-transform (FT) spectrometer without the need of scanning elements. The large input aperture size typical of a FT spectrometer eliminates the requirement for a narrow single-mode input waveguide while still achieving high spectral resolution with a markedly increased light-gathering capability (?tendue). An example of the device with a resolution of 0.07 nm(~10 GHz) and designed for a silicon-on-insulator platform is presented. The calculated spectra show no noticeable deterioration for aperture widths as large as 40 mum, yielding more than a 50-fold increase in aperture size compared with conventional AWG or echelle grating based devices at the equivalent resolution.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number12338229
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Record identifierc9fb7a62-b636-414c-817b-45ac6151f615
Record created2009-09-10
Record modified2016-05-09
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