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Issued patent

Micro non-planar ring oscillator (micro-NPRO

An issued NASA patent from the Technology Transfer catalog.

View at technology.nasa.gov
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About this technology

Overview

Previous non-planar ring oscillator (NPRO) designs have stability issues in terms of frequency, polarization, beam quality, mode choice, and output power due to the fact that the non-linear cavity design length prevents avoidance of spatial hole burning. Furthermore, large NPRO crystals are susceptible optical loss and not compatible with opto-mechanical parts and electro-optics developed for standard diode lasers.