On-chip two-octave supercontinuum generation enabled by advanced chromatic dispersion tailoring in slotted waveguides
US9110219B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3528
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and systems which include on-chip waveguides with flattened dispersion are described. In one aspect, silicon nitride slot waveguides that exhibit four zero-dispersion wavelengths with a flattened dispersion over a wavelength range of 500 nm are obtained. The disclosed silicon nitride slot waveguides are used to generate a two-octave supercontinuum from 630 nm to 2650 nm, enabling (a) on-chip generation of 5 fs optical pulses as short as 1.3 cycles, and (b) sensitive single-shot measurements of the absolute carrier-envelope phase using a single integrated waveguide. In another aspect, silicon slot waveguides that exhibits four zero-dispersion wavelengths with a flattened dispersion over a wavelength range of 670-nm are obtained. An octave-spanning supercontinuum is generated in the disclosed silicon slot waveguide, over a wavelength range from 1217 nm to 2451 nm, approximately from bandgap wavelength to half-bandgap wavelength. Input pulses longer that 100 fs can be compressed to 10 fs using the disclosed silicon slot waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.