Loading...
Please wait, while we are loading the content...
Similar Documents
Monolithic electro-optic modulator array
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1988 |
| Description | A PIN GaAlAs diode structure is provided with parameters for index guiding of light in a single mode. The index of refraction of the central layer I (which in practice may be lightly doped .pi. or .nu.) is greater than the p- and n-layers to create a slab waveguide in the transverse direction. Stripe contacts define separate waveguide channels that are separated electrically and optically by implanting protons or etching grooves between the stripe contacts in the upper layer. Separate reverse biasing voltages may be applied to the stripe contacts for modulation of the light in proportions to the voltage, either with absorption modulation, if the light wavelength is within about 500.ANG. of the bandgap of the .pi.-material, or phase-delay modulation, if the wavelength is separated from the bandgap of the .pi.-material by at least 900.ANG.. |
| File Size | 655977 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080005937 |
| Archival Resource Key | ark:/13960/t3033r89t |
| Language | English |
| Publisher Date | 1988-05-17 |
| Access Restriction | Open |
| Subject Keyword | Optics Patents Aluminum Gallium Arsenides Electro-optics Diodes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
