Abstract

In scientific and industrial applications, ultra-low loss optical coatings are desirable. From its outset in the mid-1970's by Wei et al,¹ ion beam sputtered interference coating (IBIC) has shown (a) two orders of magnitude over conventional fabrication methods in the reduction of scattering and absorption losses, and (b) high bonding strength and resistance against abrasion. This method for coating was first developed for ring laser gyro, where IBIC mirrors made the gyro a practical reality. The success in that area should stimulate IBIC applications in various spectral regions and power levels.

© 1988 Optical Society of America