A novel on-chip spectrometer device using combined functionalities of a micro-ring resonator and a planar diffraction grating is proposed and demonstrated. The spectrometer has a 2mm<sup>2</sup>footprint and exhibits 100 channels each with 0.05nm FWHM.
© 2010 The Optical Society
B. B. Kyotoku, L. Chen, and M. Lipson, "Cavity Enhanced On-Chip Spectrometer with Sub-nm Resolution," in Conference on Lasers and Electro-Optics 2010, OSA Technical Digest (CD) (Optical Society of America, 2010), paper CWG5.
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