4:00 pm to 5:00 pm
Multimodal imaging: Dedicated fiber optics combining coherent imaging with molecular sensitivity
Double-clad fibers are increasingly used in biomedical imaging and multimodal sensing as they combine the benefits of single-mode (coherent illumination and detection) and multimode (massive incoherent detection) fibers. To improve mechanical stability and decrease the coupling losses of the current free-space beam-splitter approach, all-fiber DCF couplers (DCFCs) were developed. These DCFCs have theoretical multimodal collection efficiency limited to 50%. In this presentation, I will describe double-clad fiber couplers capable of transmitting 90% of single mode core signal, while extracting >80% of the multimode signal from the inner cladding. These all-fiber couplers are robust, achromatic, quasi-lossless and insensitive to environmental conditions.
Biography: Caroline Boudoux, PhD, obtained her PhD in 2007 from the Harvard-MIT Division of Health Sciences and Technology in biophotonics. She then studied coherent control applied to nonlinear microscopy at École Polytechnique (France) before joining the Engineering Physics department of École Polytechnique Montréal in 2007. Her research focuses on biomedical optics, particularly the translation of optical diagnostics technologies for clinical applications in the fields of laryngology, head and neck surgery and orthopaedics.