Applications of 'Slow' Modes for Active Elements in Integrated Optics.
Abstract
Studies of 'slow' guided modes on partially metallic, multifilm waveguides show that, while losses with such modes are too large (1/e decay distances of 100 wavelengths or less) to use these devices as integrated modulators, their unique feature of high field concentration in a very thin metal film makes them attractive as integrated optical bolometers. Multifilm, all-dielectric waveguides can increase the efficiency of integrated optical modulators by at least 60%. Films evaporated from PbI2 are found to be 'damaged' by Ar ion laser radiation at power densities as low as 50 mw/sq cm, for exposures of about one hour. The damage takes the form of a refractive index change of the order of 1-10%, and appears permanent. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1973
- Accession Number
- AD0774935
Entities
People
- Alvin B. Buckman
Organizations
- University of Nebraska–Lincoln