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Apodized Prism Coupler for Optimized Evanescent Mode Matching Between Optical Fibers and Integrated Waveguides
This invention is a novel optical coupling apparatus and method that uses a prism-based coupler with an apodized coupling region to optimize mode matching between an optical fiber and an on-chip waveguide. This invention adapts apodization for prism coupling. It shapes the diffracted output field into a Gaussian-like profile that closely matches the...
Published: 5/12/2025
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Inventor(s): Mohamed ElKabbash, James McGrath, Greg Madejski
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Imaging & Optics > Materials & Fabrication, Technology Classifications > Imaging & Optics > Telecommunications
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Method for Integrating Quantum Emitters as On-Chip Light Sources in Photonic Integrated Circuits Fabricated on Membranes
This invention presents a high-precision, scalable method for integrating quantum emitters as on-chip light sources in photonic integrated circuits (PICs) fabricated on thin-film membranes (e.g., SiN membranes). By utilizing nanopore trapping and deterministic positioning, this method enables precise placement of quantum dots (QDs), atomic defects,...
Published: 5/12/2025
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Inventor(s): Mohamed ElKabbash
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Materials & Fabrication, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Quantum
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Method and Structure for Optical Coupling in Photonic Integrated Circuits Using Etched Silicon Substrates
This invention introduces a novel method and structure for optical coupling in photonic integrated circuits (PICs) using etched silicon substrates. These etched features allow light to be introduced from beneath the substrate and efficiently coupled into on-chip waveguides. It enhances the efficiency of photonic couplings, allowing multiple input modes...
Published: 4/14/2025
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Inventor(s): Mohamed ElKabbash
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Materials & Fabrication, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Engineering & Physical Sciences > Photonics
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Two-Pumps-Based Entanglement Generation Source Enabling Entanglement-Assisted Communication over Turbulent Free-Space Optical (FSO) Channels
This technology improves Quantum Entangled Free Space Optical Communication by employing two laser pumps and modulating on the signal photons, while employing the idler photons as the reference signal. The use of two pumps gives the flexibility of generating the signal photons at arbitrary wavelength in C- and L-bands, which is not possible with the...
Published: 9/30/2024
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Inventor(s): Ivan Djordjevic, Vijay Nafria
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Engineering & Physical Sciences > Quantum
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Hybrid SESAM Output Coupler
A novel hybrid semiconductor saturable absorber mirror (SESAM)/dielectric output coupler has been developed and employed to demonstrate a mode locked vertical-external-cavity surface-emitting lasers (VECSEL). The hybrid SESAM enables a greatly simplified optical layout for developing short pulse laser sources utilizing semiconductor based VECSELs.
Background:...
Published: 9/5/2023
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Inventor(s): Ronald Jones, Jerome Moloney, Ricky Gibson, Sadhvikas Addamane, Garrett Cole
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Displays
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Versatile Space Telescope for Quantum Key Distribution
The Versatile CubeSat Telescope (VCT) is a CubeSat-enabled telescope design with an increased aperture and decreased divergence over state-of-the-art systems. It also provides thermal stability, which enhances the signal-to-noise ratio, reduces the error rate, and improves performance. Finally, it can preserve the polarization of received signals to...
Published: 6/20/2024
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Inventor(s): Ewan Douglas, Daewook Kim
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Telecommunications
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Receiver Design for Entanglement-Assisted Classical Communication
This technology is a new type of receiver for entanglement-assisted classical communication, that is ideal for applications with noise or weak signal strength, and improves communication rates over existing solutions.
Background:
Entanglement-assisted classical communication describes the process by which the properties of quantum entanglement (such...
Published: 11/19/2024
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Inventor(s): Saikat Guha, Ali Cox, Quntao Zhuang, Christos Gagatsos, Boulat Bash
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices, Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Optical, Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Wireless
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Software Code for Modified Prime Code Family for Optical CDMA
Researchers at the University of Arizona have developed a novel spreading/address code family for high-speed, large-capacity wired/wireless or optical communications. The novel "transposed modified prime codes" (T-MPC) have specific correlation properties and flexible code size, length and weight. This code family is comparable to existing...
Published: 4/3/2023
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Inventor(s): Franko Kueppers, Mohammad Karbassian
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Telecommunications
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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: 4/3/2023
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Inventor(s): Thomas Koch, Robert Norwood, Stanley Pau, Nasser Peyghambarian
Keywords(s):
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
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Polarization State Scrambler Using Birefringent Phase Mask
A University of Arizona researcher has designed a device to efficiently convert partially polarized and polarized light into light having randomly distributed polarizations, or more generally, into output light having a plurality of polarizations. The passive device provides almost instantaneous conversion of polarization, as opposed to the current...
Published: 4/3/2023
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Inventor(s): Stanley Pau
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO
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