Efficient Optical Logic, Interconnections and Processing Using Quantum Confined Structures
Abstract
The work has been strongly focused on the development of high- efficiency surface-normal Fabry-Perot cavity modulators in particular the asymmetric Fabry-Perot modulator (AFPM). In contrast to the high-finesse, refractive index-tuned, symmetric cavity type of modulator (SFPM), on which we first reported under contract 85-0323, the AFPM utilizes the electroabsorptive properties of the intra-cavity medium- normally a GaAs-AlGaA multiple quantum well structure-to balance the initially unbalanced (asymmetric) mirrors of a low-finessee cavity, thus making it possible to achieve high contrast ratio, very efficient transfer function with low operating voltage, low insertion loss and, importantly, significantly wider optical bandwidth for the SFPM. During this period we made one of the initial demonstrations of the AFPM, where we achieved a contrast ratio of 22:1 in reflection, at a d.c. operating voltage of IIV, and with only 3.7dB insertion loss.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1991
- Accession Number
- ADA238701
Entities
People
- A. C. Gossard
- K. K. Law
- L.A. Coldren
- R. H. Yan
- R. J. Simes
Organizations
- University of California, Santa Barbara