Presented at SPIE BiOS, 2022
Proceedings Volume 11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment
and Environmental Applications XXII; 119530G (2022)
This paper describes the modeling, deposition, lithographic patterning, and testing of filters directly deposited onto the distal tip of a fiber bundle. These spectrally sharp bandpass and long pass filters allow for the detection of Raman scattering down to about 200 cm-1 . Blocking of laser radiation above OD6 is enabled by coating both the distal and proximal tips.
US Patent # 9,155,474
Inventors: Gary E. Carver, Sheetal K. Chanda, William A. Morrison, Sarah A. Locknar, Robert L. Johnson, Jr.
This 2015 patent describes a fiber-based confocal scanning system that indexes spectral information into the time domain. It enables the detection of up to 15 spectral bins within 2.5 microseconds using a single PMT detector. The technology leverages Omega's thin-film optics expertise with a serial array of coated fiber tips in the detection path. Omega has perfected the art of fiber-tip coating to accomplish this work.