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Joshua Hadler (Fed)

Publications

Meta-study of laser power calibrations ranging 20 orders of magnitude with traceability to the kilogram

Author(s)
Paul Williams, Matthew Spidell, Joshua A. Hadler, Thomas Gerrits, Amanda Koepke, David J. Livigni, Michelle Stephens, Nathan Tomlin, Gordon Shaw, Jolene D. Splett, Igor Vayshenker, Malcolm White, Christopher Yung, John Lehman
Laser power metrology at the National Institute of Standards and Technology (NIST) ranges 20 orders of magnitude from photon-counting (103 photons/s) to 100 kW...
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Patents (2018-Present)

Commercial Fiber Optic FC-Style Connector (does not depict the invention).

Fiber Optic Safety Lock

NIST Inventors
Joshua Hadler
The patent-pending NIST Fiber Optic Safety Lock (“Safety Lock”) ensures continuous connection of fiber optic cables, thereby preventing laser hazards and critical system failures. The device features a specially designed fiber connector lock that requires a tool to access the connector. The Safety
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Non-attenuating Meter for Determining Optical Energy of Laser Light

NIST Inventors
Joshua Hadler , John H. Lehman , Matthew Spidell and Paul A. Williams
A non-attenuating meter determines optical energy of laser light in an absence of optical attenuation of the laser light and includes: a recipient mirror that: receives laser light that propagates in a primary propagation direction; produces profile light; transmits the profile light through the
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Created July 30, 2019, Updated December 9, 2022
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