title: Spectral domain optical coherence tomography imaging with an integrated optics spectrometer.
abstract: We designed and fabricated an arrayed-waveguide grating (AWG) in silicon oxynitride as a spectrometer for spectral domain optical coherence tomography (SD-OCT). The AWG has a footprint of only 3.0 cm × 2.5 cm, operates at a center wavelength of 1300 nm, and has 78 nm free spectral range. OCT measurements are performed that demonstrate imaging up to a maximum depth of 1 mm with an axial resolution of 19 μm, both in agreement with the AWG design parameters. Using the AWG spectrometer combined with a fiber-based SD-OCT system, we demonstrate cross-sectional OCT imaging of a multilayered scattering phantom.
authors.affiliation: Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, Amsterdam, 1100 DE, Netherlands. d.v.nguyen@amc.uva.nl
authors.forename: V Duc
authors.initials: VD
authors.lastname: Nguyen
authors.forename: B Imran
authors.initials: BI
authors.lastname: Akca
authors.forename: Kerstin
authors.initials: K
authors.lastname: Wörhoff
authors.forename: René M
authors.initials: RM
authors.lastname: de Ridder
authors.forename: Markus
authors.initials: M
authors.lastname: Pollnau
authors.forename: Ton G
authors.initials: TG
authors.lastname: van Leeuwen
authors.forename: Jeroen
authors.initials: J
authors.lastname: Kalkman
mesh_terms: D007368:Interferometry; D007909:Lenses; D055096:Optical Devices; D019047:Phantoms, Imaging; D012825:Silicon / Q000737:chemistry; D013057:Spectrum Analysis / Q000295:instrumentation*; D018511:Systems Integration; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*
chemical_list: D012825:Silicon