Quantitative investigation of the refractive-index modulation within the core of a fiber Bragg grating Kouskousis, Betty P. ; Rollinson, Claire M. ; Kitcher, Daniel J. ; Collins, Stephen F. ; Baxter, Greg W. ; Wade, Scott A. ; Dragomir, Nicoleta M. ; Roberts, Ann Abstract Publication: Optics Express Pub Date: October 2006 DOI: 10.1364/OE.14.010332 Bibcode: 2006OExpr..1410332K