Abstract

Grating based components for integrated optics have long been recognised as potentially very important for the range of functions they enable. In 1978, Hill and co-workers reported the demonstration of gratings directly written into the core of a germanosilicate fibre, by interfering the counterpropagating beams from an Ar ion laser¹. Since those initial observations fabrication techniques have been refined and improved to the point where gratings are now commercially available²

© 1996 IEEE