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Periodic Structures Embedded within Glass Mirror Substrates for Reflection to Non-Specular Directions
This technology is a method for measuring heliostats for solar energy applications, as well as any large optical surface composed of second-surface mirrors. A small diffraction grating, which is a 1D, 2D, or 3D periodic phase and/or amplitude modulation, is embedded within the glass substrate of a second-surface mirror. Light from a metrology system...
Published: 4/24/2024
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Inventor(s): Brandon Chalifoux
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Materials & Fabrication, Technology Classifications > Imaging & Optics > Lens & System Design
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System for Figuring Thin Mirrors Using Ultrashort Laser Pulses
The inventors have developed an optical system, laser spot position determination process, and calibration process for deterministically figuring thin mirrors by creating stress inside the glass substrate (or other material transparent to the laser beam wavelength) using an ultrashort pulsed (USP) laser. This process is especially useful for low spatial...
Published: 4/3/2023
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Inventor(s): Brandon Chalifoux, Ian Arnold, Kevin Laverty
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Displays, Technology Classifications > Imaging & Optics > Lasers & Other Sources, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Lens & System Design
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Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 4/3/2023
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Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 4/3/2023
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Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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