Integrated Optical I/O Port Combiner

Case ID:

Title:  Integrated Optical I/O Port Combiner


Invention:  Researchers at the University of Arizona have designed a polarization splitter rotator (PSR) that enables use of a single optical port for input and output signals simultaneously.  This allows the output ports to connect to a wider variety of components and frees up other I/O ports for additional functions, or reduces the number of optical I/O ports required on a photonic integrated circuit.


Background:  Polarization splitter rotators (PSR) are used to separate the different polarization states of a beam of light entering the input port of the rotator, into different output ports on a photonic integrated circuit (PIC). These are generally used in one direction only, and lack efficiency.



*  Reduces the required number of optical I/O ports (or roughly doubles the number of available I/O ports)

*  Increases the utilization of the capacity available on the chip

*  Eliminates cross-talk and Bragg grating effect



*  Photonic integrated circuits (PICs)

*  Telecommunications



Patent Information:
Contact For More Information:
Kennedy Nyairo
Sr. Licensing Manager, Optical Sciences
The University of Arizona
Lead Inventor(s):
Erfan Fard