Laser-Fabricated Electro-Optical Modulators in GaAs,
Abstract
High-speed external modulators are necessary components for impressing signals onto lightwave carriers used in optical fibers for various transmission applications in telecommunications. III-V semiconductor waveguide electro-optic modulators offer the advantage of monolithic integration, which gives them an edge over lithium niobate modulators. We have used novel laser direct-writing techniques to masklessly define waveguide and electrode structures, and have fabricated an electro-optic polarization modulator in GaAs/AlGaAs. Our modulator exhibits a high extinction ratio and low value of Vpi.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1992
- Accession Number
- ADP008210
Entities
People
- G. Scelsi
- L. Eldada
- M. Levy
- M. N. Ruberto
- R. Scarmozzino
Organizations
- Columbia University