## Abstract

The criticisms raised by Poumellec and Niay in their Comment on our paper are primarily based on their misreading the original paper. We respond to their concerns and reiterate that Bragg gratings are not formed primarily by compaction from 248-nm exposure. New calculations are presented that corroborate our previous analysis.

© 2002 Optical Society of America

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### Equations (3)

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(1)
$$\delta {n}^{(1)}=(0.45){\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{tot}}$$
(2)
$$\delta {n}^{(2)}=(0.42){\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{unconst}}+(0.35){\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{elast}}$$
(3)
$${\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{tot}}={\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{unconst}}+{\left(\frac{\delta \rho}{\rho}\right)}_{\mathrm{elast}}$$