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Project TitleLow Power Photonic Control of Microwave Power Using Bulk Illumination and RF Resonance
Track Code2013-038
Short Description

A new technique for low-power photonic control of RF resonance in which bulk illumination of silicon in the 1000-1100 nm range is used to control the resonant field of a microwave ring resonator.

Abstract

Using this technique, the transmitted RF power through a microstripline-ring filter fabricated on a junction-less silicon substrate can be changed with record low power.

 
TagsOptics and Photonics, optics, optical device, photonic, photonic control, reconfigurable RF
 
Posted DateJun 24, 2013 4:06 PM

Researcher

Name
Mani Hossein-Zadeh

Manager

Name
Melissa Castillo

Background

Photonic control of RF signal propagation is an important topic that continues to be an active area of research and development in microwave photonics due to its many advantages over conventional electrical control, such as immunity to parasitic electromagnetic radiation, overall weight and size reduction, electromagnetic isolation from the control circuit, remote control, high-speed control and timing precision.  Photonically- generated free carriers control the RF propagation in all optically controlled components, including microring RF resonators.  Up to this time, optical control has primarily been achieved by tailoring the conductive structure on top of a semiconductor substrate by illuminating the desired area using an optical beam with a wavelength in the 600-1000 nm range.  However, a shortcoming of this approach is that, relatively large optical power needed for generating enough carriers in the targeted area to induce metallic behavior. For this reason, there exists a present market interest in the development of alternative approaches to achieving photonic control with relatively low optical power. Bulk illumination (as opposed to surface illumination) combined with RF resonance is an alternative approach that can reduce the required laser power (for controlling the RF properties) by enhancing the interaction between the RF field and the photo-generated carriers.

Technology Description

University of New Mexico researchers have developed a new technique for low-power photonic control of RF resonance in which bulk illumination of silicon in the 1000-1100 nm range is used to control the resonant field of a microwave ring resonator. Using this technique, the transmitted RF power through a microstripline-ring filter fabricated on a junction-less silicon substrate can be changed with record low power.

Advantages/Applications

  • Flexibility: possibility of employing multi-ring and multi-beam configurations
  • Enhanced interaction between the RF field and the photo-generated carriers
  • Low-power optical control
  • Remote control using free-space optical illumination
  • Applications: reconfigurable RF and microwave circuits and systems

INQUIRES

STC has filed intellectual property on this exciting new technology and is currently exploring commercialization options. If you are interested in information about this or other technologies, please contact Arlene Mirabal at amirabal@stc.unm.edu or 505-272-7886.

Files

File Name Description
9,306,265 Issued Patent None Download

Intellectual Property

Patent Number Issue Date Type Country of Filing
9,306,265 Apr 5, 2016 Utility United States