All fiber low noise supercontinuum source
US6775447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber suitable for generation of a supercontinuum spectrum when light pulses of femtosecond (10−15 sec.) duration are launched at a certain wavelength into the fiber. The fiber includes a number of sections of highly non-linear fiber (HNLF) wherein each section exhibits a different dispersion at the wavelength of the launched light pulses. The fiber sections are joined, for example, by fusion splicing the sections in series with one another so that the dispersions of the sections decrease from an input end to an output end of the fiber. In the disclosed embodiment, a low noise, coherent supercontinuum spanning more than one octave is generated at the output end of the fiber when pulses of light of 188 fs duration are launched into the fiber at a repetition rate of 33 MHz and with an energy of three nanojoules per pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.