Production of submicrometer period Bragg gratings in optical fibers using wavefront division with a biprism and an excimer laser source

Abstract

Biprisms are used as a method of wavefront division with an excimer laser source to holographically write first-order Bragg gratings in single-mode optical fibers. Gratings with a period of 556 nm and peak reflectivity of 62% are produced using single pulses from a krypton fluoride (KrF) laser. A comparison is made between grating production with line-narrowed and nonline narrowed lasers.