Paul Narum

Title: Paul Narum: Inventor in Optical Phase Conjugation

Introduction

Paul Narum is an inventor associated with the University of Rochester in Leovenstad, Norway. His patent work concerns optical phase conjugation, a technique that can help correct distortions in optical waves.

Latest Patents

Narum is associated with 1 patent, titled “Method and Apparatus for Non-Frequency-Shifted Phase Conjugation.” The invention describes an optical phase-conjugation apparatus, also known as a phase-conjugate mirror, that uses Brillouin-enhanced four-wave mixing. It arranges the pump-wave frequencies so that the probe wave and resulting conjugate wave have the same frequency. Brillouin resonance enhancement provides high reflectivity, or gain. The patent also describes generating a backward-going pump wave through stimulated Brillouin scattering, producing pump waves that are phase conjugates of one another. This arrangement is intended to preserve phase-conjugation quality even when the pump wave is aberrated.

Career Highlights

The available information connects Narum’s patent work with the University of Rochester. His invention addresses a specialized challenge in optical systems: producing a conjugate wave without shifting its frequency while maintaining strong reflection and resilience to pump-wave aberrations.

Collaborations

Narum’s listed coworkers include Mark D. Skeldon and Robert W. Boyd. Their names are associated with the collaborative research context surrounding the optical phase-conjugation work.

Conclusion

Paul Narum’s patent describes a Brillouin-enhanced approach to optical phase conjugation designed to provide high reflectivity and maintain performance despite aberrations in the pump wave.