Method and apparatus for waveform generation
US7650080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Dec 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0057
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A spread spectrum waveform generator has a photonic oscillator and an optical heterodyne synthesizer. The photonic oscillator is a multi-tone optical comb generator for generating a series of RF comb lines on an optical carrier. The optical heterodyne synthesizer includes first and second phase-locked lasers, where the first laser feeds the multi-tone optical comb generator and the second laser is a single tone laser whose output light provides a frequency translation reference. At least one photodetector is provided for heterodyning the frequency translation reference with the optical output of the photonic oscillator to generate a spread spectrum waveform. A receiver pre-processor may be provided to operate on the spread spectrum waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.