Optical spectrum analyzer
US6452681B1 · kind B1 · utility
17Cited by
7References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is an optical spectrum analyzer (OSA) comprising a tree-structure of N-stage wavelength filters or “wavelength slicer” which “slice” the incident optical signal into desired groupings of individual sliced spectral components, each along a different output optical fiber. Cascaded fiber Bragg gratings and delay lines coupled to each output optical fiber then uniquely map the “sliced” spectral components into the time domain such that each spectral component is allocated a unique time slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.