title: Nondestructive imaging of a type I optical fiber Bragg grating.
abstract: Nondestructive images of refractive-index variation within a type I fiber Bragg grating have been recorded by the differential interference contrast imaging technique. The images reveal detailed structure within the fiber core that is consistent with the formation of Talbot planes in the diffraction pattern behind the phase mask that had been used to fabricate the grating.
authors.affiliation: Optical Technology Research Laboratory, Victoria University, PO Box 14428, Melbourne City MC, Victoria 8001, Australia.
authors.forename: Nicoleta M
authors.initials: NM
authors.lastname: Dragomir
authors.forename: Claire
authors.initials: C
authors.lastname: Rollinson
authors.forename: Scott A
authors.initials: SA
authors.lastname: Wade
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Stevenson
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Collins
authors.forename: Gregory W
authors.initials: GW
authors.lastname: Baxter
authors.forename: Peter M
authors.initials: PM
authors.lastname: Farrell
authors.forename: Ann
authors.initials: A
authors.lastname: Roberts