Optical multi/demultiplexing circuit
US11656405B2 · kind B2 · utility
0Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an optical wavelength multi/demultiplexing circuit with a high rectangular transmission loss spectrum that is able to secure loss flatness of a transmission band, maintain/reduce a guard bandwidth of wavelength channel spacing, and broaden a transmission bandwidth. The circuit uses a multimode waveguide for a connecting part between a field modulation device and an AWG. The field modulation device is constituted by a common input waveguide, an optical branching unit, optical delay lines, a multiplex interference unit, and a mode converter/multiplexer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.