Method and apparatus for generating frequency modulated pulses
US6834134B2 · kind B2 · utility
53Cited by
11References
13Claims
0Family size
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Key dates
| Filing date | Mar 23, 2001 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Oct 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/146
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus are provided for generating short (e.g., picosecond) pulses using a 2 section 1553 nm DBR laser without gain switching nor external modulation. The center wavelength of the DBR section is modulated at 0.5 GHz to generate a constant amplitude frequency modulated optical wave Large group velocity dispersion is then applied with a chirped fiber Bragg grating to convert the FM signal to a pulse stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.