Integrated Spectrometers with Single Pixel Detector

Integrated spectrometers, that analyze the spectrum of a broadband source can be implemented in a miniaturized form on a photonic integrated circuit. Large channel count spectrometers can be realized. However, in order to obtain a fully integrated spectrometer, large detector arrays integrated with the spectrometers are required. While this is typically not an issue for applications in the visible/near-infrared, it is more cumbersome in the short-wave and mid-infrared (>1.6um), due to the low yield of photodetectors in this wavelength range. It is however this wavelength range that is of high importance for spectroscopic sensing applications. In this invention we replace the large detector arrays by a single pixel detector, which could have a very important impact on the spectrometer cost and potentially also power consumption, since one now has to cool (for perfomance improvement, especially in the infrared) only a single pixel detector instead of a large array.

Octrooi-publicatienummer: US20170082421

Bron: USPTO

Jaar aanvraag: 2015

Jaar toekenning: 2018

Jaar van publicatie: 2018

Status: Toegewezen

Technologiedomeinen: Meting, Optica

Gevalideerd voor IOF-sleutel: Ja