Splitter, optical distribution network, and method for determining wavelength corresponding to optical filter structure
US12099240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2022 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Mar 30, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/1215
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A splitter includes an optical input section, N optical branch sections, and at least (N−1) optical filter structures. Each optical filter structure reflects an optical signal of one wavelength. The at least (N−1) optical filter structures include a special optical filter structure and at least (N−3) common optical filter structures, and a wavelength of an optical signal reflected by each of the common optical filter structures is a common wavelength. A wavelength of an optical signal reflected by a first/second special optical filter structure is a first/second special wavelength. At least (N−3) common wavelengths constitute an arithmetic sequence, a difference between the first special wavelength and a largest common wavelength is greater than a tolerance of the arithmetic sequence, and a difference between the second special wavelength and a smallest common wavelength is greater than the tolerance of the arithmetic sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.