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Published on: March 20, 2017
Coherent modem-enabled spread-spectrum time-domain diffuse optical spectroscopy
Jiaying Lu1, Brandon Buscaino1, Michael A Reimer1
1Ciena Corporation, Ottawa, ON K2K 0L1, Canada.
None:
We present a spread-spectrum time-domain diffuse optical spectroscopy (TD DOS) system utilizing a commercially available dual-polarization coherent optical modem operating at a wavelength of 1547.7 nm. The modem features a sampling rate of 114.6 GSa/s, enabling a temporal resolution of 17.5 ps. Our findings demonstrate that for low received optical powers (< -72 dBm), the scattering and absorption parameters of two studied tissue phantoms can be estimated with less than 12% fitting error within an exposure time of under 6 ms.
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