Planar waveguide wavelength dispersive devices with multiple waveguide input aperture
US8351043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Oct 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectrometer has a multi-input aperture for admitting an input wavefront and an array of multiple waveguide structures terminating at the multi-input aperture. The input wavefront is incident on each of the waveguide structures, which provide a dispersive function for the input wavefront. Interferometers are formed by elements of the waveguide structures. The interferometers have different optical path length differences (OPDs). The interferometers provide a wavelength responsive output for spatially extended light sources. The output of the interferometers is detected with a detector array. The spectrometer has an improved etendue, and in some embodiments very high resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.