Wavelength division multiplexing device having wavelength division multiplexing filter
US12431979B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jan 16, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical multiplexing system comprises a wavelength division multiplexing (WDM) device, an incoming light input to the WDM device, and an exiting light output from the WDM device. The WDM device comprises a WDM filter, an incident light is incident at the WDM filter having an incident angle at the WDM filter. The incident light is partially transmitted through the WDM filter and partially reflected from the WDM filter. An angle formed by the incoming light and the exiting light is larger than twice of the incident angle at the WDM filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.