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Opt Express. 2010 Jan 4;18(1):102-7. doi: 10.1364/OE.18.000102.

Sub-nm resolution cavity enhanced microspectrometer.

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1
School of Electrical and Computer Engineering, Cornell University, Ithaca, N.Y. 14850, USA.

Abstract

A novel on-chip spectrometer device using combined functionalities of a micro-ring resonator and a planar diffraction grating is proposed. We investigate the performance of this architecture by implementing it in a silicon-on-insulator platform. We experimentally demonstrate such a device with 100 channels, 0.1 nm channel spacing and a channel crosstalk less than -10 dB. The entire device occupies an area of less than 2 mm(2). Based on our initial results we envision that this device enables the possibility of the realization of low-cost and high-resolution ultra-compact spectroscopy.

PMID:
20173828
[Indexed for MEDLINE]
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