Interferometric Measurement of Refractive-Index Change in Photosensitive Glass
Applied Optics, Vol. 40, Issue 10, pp. 1663-1667 (2001)
http://dx.doi.org/10.1364/AO.40.001663
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Abstract
We report on a technique for determining the change in the refractive index of photosensitive glass. We have demonstrated our interferometer-based technique on fiber preform and bulk glass samples, achieving an optical-path-difference (OPD) repeatability of 0.2 nm. For the bulk glass sample we measured an OPD of 15.2 ∓ 3.0 nm, corresponding to an index change of 2.1 ∓ 0.7 × 10−5. Our technique was found to be insensitive to the effects of photodarkening and material compaction.
© 2001 Optical Society of America
OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(160.2290) Materials : Fiber materials
(160.2750) Materials : Glass and other amorphous materials
(230.1480) Optical devices : Bragg reflectors
Citation
Tasshi Dennis, Erin M. Gill, and Sarah L. Gilbert, "Interferometric Measurement of Refractive-Index Change in Photosensitive Glass," Appl. Opt. 40, 1663-1667 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-10-1663
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