Free Space Optics

Free Space Optics transceivers are typically large devices with narrow fields of view, making them unsuitable for many applications.  Tethir's new receiver drastically reduces the size and increases the performance, opening up new possibilities for the technology.

Ultra-small form factor 

Light hitting Tethir's new optical receiver stays within the material of the lens until it hits the photodetector.  Receiving systems that would normally require 15cm depth can be condensed to less than 1.5cm.  

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Higher performance

The receiver is highly effective at filtering out stray light and it concentrates the incoming laser beam by orders of magnitude greater than widely used optical approaches.  This attribute can lead to one or a multiple of the following benefits:

  • Improved signal-noise ratio

  • Increased length of a FSO link

  • Cheaper components and lower overall system cost

  • Increased bandwidth

  • Wider field of view

  • Reduced power consumption

Applications

New opportunities for point-to-point Free Space Optics links

  • With a smaller receiver, it's possible to fit many more transceivers onto a single mast.  FSO doesn't have interference problems, so the only limitation is size and weight.

  • Ultra-small transceivers can be installed on the inside of glass windows for convenient last-mile links. 

  • Satellite based links can be smaller, lower cost and more powerful.

Ground to vehicle links

  • By increasing the field of view, it becomes possible to form communication links with moving vehicles without needing sophisticated tracking mechanisms. 

  • Smaller transceivers are able to be installed on the inside of a windshield. 

Broader applicability

  • Military applications 

  • LIDAR

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