Wideband Electroabsorption Modulator for Microwave Photonics
Abstract
The technical objective/approach of this effort was to design and test a novel material and electrode structure of traveling wave electroabsorption modulators (TWEAMs) for use in microwave transmission systems exceeding frequencies of 50 GHz. Potential monolithic integration of these modulators with low noise lasers is promising for insertion into future space-based and air borne platforms in which physical size is a primary concern. This report details the University of California at San Diego (UCSD) efforts in a collaborative research program with AFRL at Rome Research Site who evaluated the TWEAMS in fiber links. Significant progress has been made in the design and understanding of the electroabsorption modulator for analog fiber links. The present designs, including Intrastep- barrier Quantum Well (IQW) and Peripheral Coupled Waveguide (PCW), represent major advances in the transmitter development involving semiconductor external modulators. While low RF frequency modulators useful for analog links has been demonstrated, a follow-on program will be initiated to realize experimentally the analog performance of both regular traveling wave electrode and segmented-electrode traveling wave electroabsorption modulator in external modulated RF fiber-optic links.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2004
- Accession Number
- ADA428112
Entities
People
- A. R. Clawson
- Gang Wu
- John Fischer
- Paul K. L. Yu
- Yan Zhuang
Organizations
- University of California Regents