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Proceedings Paper

Development of VCSELs for optical nerve stimulation
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Paper Abstract

Neural stimulation using infrared optical pulses has numerous potential advantages over traditional electrical stimulation, including improved spatial precision and no stimulation artifact. However, realization of optical stimulation in neural prostheses will require a compact and efficient optical source. One attractive candidate is the vertical cavity surface emitting laser. This paper presents the first report of VCSELs developed specifically for neurostimulation applications. The target emission wavelength is 1860 nm, a favorable wavelength for stimulating neural tissues. Continuous wave operation is achieved at room temperature, with maximum output power of 2.9 mW. The maximum lasing temperature observed is 60° C. Further development is underway to achieve power levels necessary to trigger activation thresholds.

Paper Details

Date Published: 18 February 2011
PDF: 7 pages
Proc. SPIE 7883, Photonic Therapeutics and Diagnostics VII, 788351 (18 February 2011); doi: 10.1117/12.875750
Show Author Affiliations
Matthew Dummer, Vixar (United States)
Klein Johnson, Vixar (United States)
Mary Hibbs-Brenner, Vixar (United States)
Matthew Keller, Lockheed Martin Aculight (United States)
Tim Gong, Lockheed Martin Aculight (United States)
Jonathon Wells, Lockheed Martin Aculight (United States)
Mark Bendett, Lockheed Martin Aculight (United States)

Published in SPIE Proceedings Vol. 7883:
Photonic Therapeutics and Diagnostics VII
Kenton W. Gregory M.D.; Nikiforos Kollias; Andreas Mandelis; Henry Hirschberg M.D.; Hyun Wook Kang; Anita Mahadevan-Jansen; Brian Jet-Fei Wong M.D.; Justus F. R. Ilgner M.D.; Bodo E. Knudsen M.D.; E. Duco Jansen; Steen J. Madsen; Guillermo J. Tearney; Bernard Choi; Haishan Zeng; Laura Marcu, Editor(s)

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