What was Elias Snitzer's most fundamental contribution to the fiber laser technology?

Answer

Creating low-loss optical fibers capable of effective light transmission

Snitzer's work focused on material science, making the fiber itself viable by fabricating high-purity, low-loss silica glass, which served as the indispensable waveguide foundation.

What was Elias Snitzer's most fundamental contribution to the fiber laser technology?
inventionlaserfiber