Increase of photosensitivity in Ge-doped fibers under strain.
Straining a Ge-doped optical fiber increases its UV photosensitivity. The speed of grating fabrication in a standard AT&T telecommunication fiber increases by 18 times, while the final refractive-index change is enhanced by a factor of 5. Measurements reveal opposite changes in the stress of the fiber core induced by UV light in strained and unstrained fibers.
Salik
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E
Starodubov
D S
DS
Feinberg
J
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