Optically Tunable Gratings for Optical Interconnects
Abstract
The properties of a nonlinear grating coupler were investigated for application to an all-optical beam scanner for optical interconnects. En route, this program achieved four distinct goals: 1. Bistability was demonstrated for grating coupling into ZnS waveguides utilizing a diffusive nonlinearity (thermal). 2. It was shown theoretically that a diffusive nonlinearity is required to obtain bistability in a nonlinear grating (or prism) coupler. This cleared up a 5 year controversy in the literature. 3. An all-optical beam scanner was demonstrated in which the scan angle of a signal beam is tuned by varying the input power of the control beam. Both smooth and bistable scanning was implemented. 4. This device was analysed theoretically for both non-local and local (Kerr) nonlinearities. It was shown that Kerr nonlinearities lead to a non-unique response.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 30, 1989
- Accession Number
- ADA216978
Entities
People
- G. I. Stegeman
Organizations
- University of Arizona