Search Results - roland+himmelhuber

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SmartPrint Polymer Material and Design for the Connection of Separate Optical Chips
This technology is a further development of interconnect polymer waveguides for photonics packaging and integration. Here, a flexible optical substrate is attached and aligned to individual photonic chip components to form an optical waveguide. The waveguide comprises a refractive index contrast (RIC) polymer directly patterned using a photolithography...
Published: 12/13/2021   |   Inventor(s): Linan Jiang, Dong-Chul Pyun, Robert Norwood, Tristan Kleine, Julie Frish, Thomas Koch, Stanley Pau, Roland Himmelhuber, Abhinav Nishant, Kyungjo Kim, Sasaan Showghi
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Category(s): Technology Classifications > Engineering & Physical Sciences > Electronics > Assembly and Packaging, Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Semiconductors, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices, Technology Classifications > Materials > Polymers, Technology Classifications > Software & Information Technology > Communications & Networking, Technology Classifications > Software & Information Technology > Web & Internet, Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Optical, Technology Classifications > Engineering & Physical Sciences > Electronics > Computer Hardware, Technology Classifications > Engineering & Physical Sciences > Electronics > Digital Circuits
Silicon Photonic Devices With Tunable Temperature Dependence
Researchers at the University of Arizona have developed an athermal multichannel optical add-drop multiplexer (OADM) which is based on silicon microring resonators. Using a means of controlling the thermo-optic coefficient of certain materials, the researchers have reduced the temperature dependent wavelength shifts to achieve athermal condition for...
Published: 11/29/2018   |   Inventor(s): Soha Namnabat, Robert Norwood, Kyungjo Kim, Roland Himmelhuber
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices
A Photorefractive, High Refractive Optical Polymers from Styrenic Sulfide Monomers
This invention is a novel method to create optical polymer with regions of high and low refractive index. Background: The inventors were motivated by large technological motivation for optical polymers that are low-cost and have variable refractive index, especially in telecommunication. They have demonstrated the synthesis of a new compound, a...
Published: 9/17/2018   |   Inventor(s): Dong-Chul Pyun, Robert Norwood, Roland Himmelhuber, Tristan Kleine
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication
SHG Imaging Technique for Assessing Hybrid EO Polymer/Silicon Photonic Integrated Circuits
Scientists at the University of Arizona have developed a system for assessing the efficiency of the electro-optic (EO) polymer poling process by using multi-photon imaging in the second harmonic generation mode (SHG), permitting imaging and assessment of waveguide devices, including poled polymer devices, prior to, during, and after fabrication. This...
Published: 2/9/2015   |   Inventor(s): Robert Norwood, Khanh Kieu, Roland Himmelhuber
Keywords(s): electro-optic polymer, hybrid photonic integrated circuits, SHG imaging, silicon photonics
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Sensors and Detection, Technology Classifications > Imaging & Optics > Sensors and Detection > Inspection
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
Keywords(s):  
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