Methods and techniques for achieving flattened and broadened pass band spectrum for free-space grating-based dense wavelength division multiplexers/demultiplexers
US6888980B2 · kind B2 · utility
2Cited by
5References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Jul 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for expanding the wavelength band of an optical component is disclosed. The device has a beam splitter for splitting a wavelength division multiplexed beam into two beams at a desired separation angle. An optical grating separates the two beams into spectral components for each beam. The spectral components are focused on a receiving surface. The separation angle between the two beams expands the wavelength band of the WDM signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.