title: Piecewise interferometric generation of precision gratings.
abstract: A simple interferometer and associated technique, allowing for sequential exposure of small segments in the writing of a large grating, is described. The increased intensity thus afforded greatly aids in overcoming nonlinear and reciprocity effects in the recording medium. Furthermore, the technique eliminates the need for a large collimator and errors introduced by imperfect collimation. Demonstration gratings written with this technique have shown maximum registration errors of +/-35 nm.
authors.forename: L F
authors.initials: LF
authors.lastname: Mollenauer
authors.forename: W J
authors.initials: WJ
authors.lastname: Tomlinson