Sol-gel synthesis of fluoride optical materials for planar integrated photonic applications

The sol-gel synthesis of fluoride materials provides a viable and low-cost method for achieving planar and bulk devices for integrated photonic applications. This paper describes these prospects and methods for the experimental development of patterned and waveguiding films. The sol-gel synthesis from both metal-organic and inorganic precursor systems is discussed in relation to their potential for passive and active device applications.