Waveguide-integrated photonic crystal spectrometer with camera readout
- 4 August 2014
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 105 (5), 051103
- https://doi.org/10.1063/1.4892265
Abstract
We demonstrate an infrared spectrometer based on waveguide-coupled nanocavity filters in a planar photonic crystal structure. The input light is coupled into the waveguide, from which spectral components are dropped into the cavities and radiated off-chip for detection on a commercial InGaAs camera. The spectrometer has a footprint of only 60 μm by 8 μm. The spectral resolution is about 1 nm in the operation bandwidth of 1522–1545 nm. By substituting the membrane material and structure parameters, this design can be easily extended into the visible regime and developed for a variety of highly efficient, miniature photonic applications.This publication has 22 references indexed in Scilit:
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