Search Results - nasser+peyghambarian

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Optical Printed Circuit Board with Polymer Array Switch
Researchers at the University of Arizona have developed a flexible polymer waveguide array structure that serves as a stitch or jumper on an optical printed circuit board (OPCB). The flexible polymer waveguide array structure can be attached to the OPCB so that it can provide a chip-to-OPCB optical connection. Using an array of small polymer waveguides...
Published: 7/14/2022   |   Inventor(s): Thomas Koch, Robert Norwood, Stanley Pau, Nasser Peyghambarian
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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices
High-Throughput Manufacturing for PIC Polymer Waveguide Connection Fabrics
This invention is a low-cost high-throughput method of connecting silicon photonic chips to one another. The method is active and robust, taking into account the tolerances and variations of the PIC configurations. It is also rapid, accurate, immune to large dimensional variation, and amenable to rework. Background: Photonic integrated circuits (PICs)...
Published: 7/14/2022   |   Inventor(s): Thomas Koch, Robert Norwood, Stanley Pau, Nasser Peyghambarian
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Category(s): Technology Classifications > Imaging & Optics > Telecommunications
Multispectral Cancer Imaging Instrument
This skin cancer detection invention works by illuminating the area in question and imaging it in several different spectral bands. The sampled bands are compared to a normal sample by a unique method. Normal and abnormal areas are then displayed in appropriate colors. Background: The standard testing and removal procedure for skin cancer is called...
Published: 11/4/2021   |   Inventor(s): William Wolfe, Nasser Peyghambarian
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Category(s): *Opt: Medical Instrumentation & Devices, Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Healthcare Portfolios > Oncology
Generating Visible to Mid-Infrared Supercontinuum Light Source using a Multi-Wavelength Ultrashort Laser
This technology is a new method of generating an ultrabroadband and flat supercontinuum laser. Two or more ultrafast lasers with unique central wavelengths are generated from a single cavity so that they can be precisely synchronized. Then, each individual output is broaden to produce flat continuum of wavelengths in the visible and mid-infrared range. Background: Ultrafast...
Published: 2/10/2021   |   Inventor(s): Farhad Akhoundi, Nasser Peyghambarian
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Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources
Efficient All-Fiber Amplifier based on Small Diameter Air Clad Fibers
This technology is a novel fiber amplifier that achieves high efficiency while reducing cladding thickness. Background: Optical fiber communications are in high demand and expected to continue to grow at a fast pace in the near future. As companies compete to take advantage of this market opportunity, there is a drive to continuously improve the efficiency...
Published: 12/2/2020   |   Inventor(s): Valery Temyanko, Leonid Kotov, Nasser Peyghambarian
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Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources
Co-doping of Holmium (Ho) and Dysprosium (Dy) with Erbium (Er) for Low-Cost High-Efficiency Diode-Pumped Laser at 3-Micron Meter Wavelength Range
For many applications, the output of a laser diode is coupled into an optical fiber to direct the light beam more easily. This fiber can be doped with rare earth metals such as Erbium to increase efficiency and absorption. Instead of using Erbium (Er3+) exclusively for doped fiber lasers, this method proposes the use of codoped Er3+ fiber lasers with...
Published: 3/25/2020   |   Inventor(s): Xiushan Zhu, Nasser Peyghambarian
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Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources
Implementing Multiplication And Division In Optics
This invention is an all-optical approach to implementing mathematical operations on a circuit board in a computer. It uses the non-linear response to light of certain types of thin film materials in a novel approach to multiply & divide numbers in an all-optical mathematical circuit. The approach is an analogue method which implies a constant time...
Published: 7/10/2018   |   Inventor(s): Masoud Babaeian, Nasser Peyghambarian, Robert Norwood, Mark Neifeld, Pierre Blanche
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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Data Storage
Adjustable Hybrid Diffractive/Refractive Achromatic Lens
Researchers at the University of Arizona have designed an achromatic variable focus lens that can correct for Seidel Aberrations in addition to chromatic dispersion. The technology uses fluid pressure control to alter the curvature of clear membranes containing fluid in correlation with the wavelength and the desired focal length. Software enables the...
Published: 12/17/2014   |   Inventor(s): Pouria Valley, Nasser Peyghambarian, Gholam Peyman, James Schwiegerling, Nickolaos Savidis
Keywords(s): diffractive lens, liquid-crystal devices
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Medical Imaging
Electro-Optic Waveguide Modulator with Low Insertion Loss
This invention relates to methods for improving the properties of photorefractive materials to improve the performance, particularly the grating or image persistency of photorefractive materials. One method is to utilize multiple layers, interposing one or more polymer layers between the transparent electrode layer and the photorefractive material. Background:...
Published: 11/30/2014   |   Inventor(s): Nasser Peyghambarian, Robert Norwood, Christopher Derose, Roland Himmelhuber
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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices
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: 11/30/2014   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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