Self-Aligning Mirror Mechanism for Transmission Line Offset Correction

Web Published:

Princeton Docket # 16-3187


Researchers at Princeton Plasma Physics Laboratory, Princeton University have designed a self-aligning mirror mechanism for transmission line offset correction. The self-aligning mechanism automatically adjusts mirrors to couple radiation between two or more offset waveguides or optical fibers. It is currently used to direct microwaves through two offset waveguides that are moving relative to each other. The uniqueness of this device is that it is self-aligning and functions to maintain critical geometric relationships necessary to allow for wave passage while adapting to externally driven fluctuations.


It is anticipated that it may also be used in optical applications to maintain critical alignment, substituting flat mirrors for waves with small spot sizes (such as lasers).



•       Directs microwaves through offset waveguides

•       Optical fiber applications

•       Optical applications with lasers



•       The self-aligning mechanism functions to maintain critical geometric relationships necessary to allow for wave passage while adapting to externally driven fluctuations

•       1-2-1 focal length ratio


Princeton Plasma Physics Laboratory (PPPL)  

The U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) is a collaborative national center for fusion energy research. The Laboratory advances the coupled fields of fusion energy and plasma physics research, and, with collaborators, is developing the scientific understanding and key innovations needed to realize fusion as an energy source for the world. An associated mission is providing the highest quality of scientific education.



Michael Gomez is a Designer at Princeton University's Plasma Physics Laboratory. His work focuses on laser and microwave diagnostics for the International Thermonuclear Experimental Reactor (ITER). Mike’s experience in the auto industry included being the design leader for various manufacturers. His most notable design contributions were for the Corvette, Cobra Mustang, and Fiero. Mike has a keen ability to solve complex engineering problems with simple solutions.


Intellectual Property Status

Patent protection is pending.

Princeton is currently seeking commercial partners for the further development and commercialization of this opportunity.




Michael Tyerech

Princeton University Office of Technology Licensing

• (609) 258-6762•

Laurie Bagley

Princeton University Office of Technology Licensing

• (609) 258-5579•


Patent Information:
For Information, Contact:
Michael Tyerech
Senior Licensing Associate
Princeton University
Michael Gomez
Cara Bagley
Benjamin Tobias
Ali Zolfaghari