RT Journal Article
T1 High-resolution Fourier-transform spectrometer chip with microphotonic silicon spiral waveguides
A1 Villafranca Velasco, Aitor
A1 Cheben, Pavel
A1 Bock, Przemek J.
A1 Schmid, Jens H.
A1 Delâge, André
A1 Lapointe, Jean
A1 Janz, Siegfried
A1 Calvo Padilla, María Luisa
A1 Xu, Dan-Xia
A1 Florjańczyk, Mirosław
A1 Vachon, Martin
AB We report a stationary Fourier-transform spectrometer chip implemented in silicon microphotonic waveguides. The device comprises an array of 32 Mach-Zehnder interferometers (MZIs) with linearly increasing optical path delays between the MZI arms across the array. The optical delays are achieved by using Si-wire waveguides arranged in tightly coiled spirals with a compact device footprint of 12 mm(2). Spectral retrieval is demonstrated in a single measurement of the stationary spatial interferogram formed at the output waveguides of the array, with a wavelength resolution of 40 pm within a free spectral range of 0.75 nm. The phase and amplitude errors arising from fabrication imperfections are compensated using a transformation matrix spectral retrieval algorithm.
PB The Optical Society Of America
SN 0146-9592
YR 2013
FD 2013-03-01
LK https://hdl.handle.net/20.500.14352/33533
UL https://hdl.handle.net/20.500.14352/33533
LA eng
NO © 2013 Optical Society of America.Financial support from the Spanish Ministry of Economy is acknowledged under grants TEC2008-04105 and TEC2011-23629.
NO Ministerio de Economía, España
DS Docta Complutense
RD 20 abr 2025