Ultra-Fast Optical Signal Encoding and Analysis for Communications and Data Fusion Networks
Abstract
We describe the distributed Bragg pulse shaper, the quantum dot spectrometer and interferometric imaging systems developed under this program. The distributed Bragg pulse shaper is a series of partially reflecting Bragg mirrors constructed over an integrated optical waveguide. Through parallel electrical modulation of the Bragg mirror resonances one can encode terahertz bandwidth optical signals with this device. Quantum dot detectors and interferometric sensors provide complementary technologies for detecting such signals. Quantum dot spectrometers combine the spectral discrimination of quantum confined absorption with resonant tunneling for channel isolation. Interferometric systems map spectral or temporal signal features onto spatially separate channels. In this sense, interferometry acts as a serial-to-parallel complement to the parallel-to-serial action of the pulse shaper.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2000
- Accession Number
- ADA377846
Entities
People
- David Brady
- James. J. Coleman
- Kenneth G. Purchase
Organizations
- University of Illinois Urbana–Champaign