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Proceedings Paper

Single chip AWG-based Raman spectroscopy for continuous glucose monitoring
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Paper Abstract

In this paper, we introduce an innovative proposal for a low cost micro Raman spectrometer for non-invasive glucose monitoring. In this design, an Array Waveguide Grating (AWG) chip integrated with PIN photodiodes and a prism coupling are proposed to replace fiber micro alignment in packaging and to reduce system cost. Experiments were designed and conducted to evaluate the impact of thickness of the waveguides and the incident angle of the laser beam on the efficiency of the prism coupling. Considerable light coupling was observed when the waveguide core is 2mm thick. An updated fabrication process was designed and test chip was also fabricated to determine the critical feature size to solve the problem of air bubble resulted in trench filling.

Paper Details

Date Published: 4 March 2016
PDF: 6 pages
Proc. SPIE 9715, Optical Diagnostics and Sensing XVI: Toward Point-of-Care Diagnostics, 971518 (4 March 2016); doi: 10.1117/12.2213556
Show Author Affiliations
Sheng Yang, International Technological Univ. (United States)
Yen-Chun Yeh, International Technological Univ. (United States)
John Ladasky, International Technological Univ. (United States)
Avid Farhoodfar, International Technological Univ. (United States)
Dominik Schmidt, International Technological Univ. (United States)

Published in SPIE Proceedings Vol. 9715:
Optical Diagnostics and Sensing XVI: Toward Point-of-Care Diagnostics
Gerard L. Coté, Editor(s)

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