Photonic multiplexing and demultiplexing between free space and on-chip technologies

This technology provides a method to transition free space optics to an on-chip device for analysis and division of the incoming light into its constituent wavelengths.

Unmet Need: Fabrication technique for photonic multiplexing optimized for free space optics

Photonic multiplexing and demultiplexing, processes that are critical for telecommunications technology, enable multiple signals to be combined or un-combined over one shared medium. These processes are accomplished in on-chip devices using filters, gratings, polymeric waveguides, and optical fibers that guide light through the device. Current fabrication techniques are, therefore, optimized for thin films and on-chip set ups, rather than free space optics.

The Technology: Multiplexing and demultiplexing between free space and on-chip devices using multimode waveguide

This technology provides a method to transition between free space optics and on-chip micro-/nanophotonics devices. It comprises a polymeric waveguide that guides free space light into the on-chip device, or from the chip into free space to better control light beam shape. These modular fabrication guidelines allow for incorporation of commercially available parts and tunable architecture for a variety of applications. Therefore, this technology has great potential to improve photonic multiplexing and demultiplexing for optical communications in various settings.

Applications:

  • Remote optical sensing
  • Laser or non-coherent light analysis
  • Wireless connection between optical fibers
  • GPS signaling

Advantages:

  • Compatible with commercially available filters
  • Compatible with various device architectures
  • Large waveguide enables superior interaction with poorly defined free space light
  • High spectroscopic resolution
  • Modular fabrication process

Lead Inventor:

Michal Lipson, Ph.D.

Patent Information:

Patent Status

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