We demonstrate an integrated on-chip spectrometer employing photonic crystal nanobeam photonic crystal cavities for telecom wavelength. Acetylene absorption line was successfully measured by thermo-optic tuning of a single device
© 2012 OSA
P. B. Deotare, L. Kogos, Q. Quan, R. Ilic, and M. Loncar, "On-chip integrated spectrometer using nanobeam photonic crystal cavities," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper CM3B.4.
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