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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: 3/12/2024 | 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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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: 4/3/2023 | Inventor(s): Soha Namnabat, Robert Norwood, Kyungjo Kim, Roland Himmelhuber

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices

High Refractive Optical Polymers from Vinylic Sulfide Monomers Amenable to Photoprocessing

This invention is a new class of hybrid inorganic-organic polymer chemistry for synthesizing high refractive index optical polymers. Monomers for these materials comprise vinylic groups linked to a protecting group capable of being cleaved upon application of an external stimulus. The refractive index of the polymer may be changed during the process...

Published: 3/12/2024 | Inventor(s): Dong-Chul Pyun, Robert Norwood, Roland Himmelhuber, Tristan Kleine

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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: 4/3/2023 | 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: 4/3/2023 | 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