Basic and Applied Research in the Field of Electronics and Communications.
Abstract
During this period, considerable progress was made on experimental and theoretical designs for optical waveguide switches, multiplexors, and demultiplexors that can operate at a rate of 20 gigahertz, centered around the waveguide Mach-Zehnder interferometer. Extensive investigations into device applications of coupled waveguide structures have led to the ability to inject power into one of n input waveguide ports, and deliver power from any selected port using these techniques. Basic logic gates have been formed, building the interferometer in gallium arsenide, and simple exclusive OR gates have been demonstrated. Quantum noise in phase locked laser oscillators was studied, with the goal of using light that produces noise levels less than shot noise, and hence, is in a 'squeezed state'. Oscillations in this mode have been successfully demonstrated. During this contract, a femtosecond laser facility was built which led to the achievement of optical pulses as short as 16 femtoseconds, with a center wavelength of approximately 625 nanometers, comprised of only eight optical cycles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 19, 1986
- Accession Number
- ADA169029
Entities
People
- Jonathan Allen
Organizations
- Massachusetts Institute of Technology