Real time wavelength monitoring circuit
US6055078A · kind A · utility
46Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | May 1, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/572
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A real time multi-channel wavelength monitoring circuit for monitoring Waveguide Division Multiplexing communications networks (WDM) is disclosed. The monitoring circuit monitors the full wavelength of an input signal by providing center offset inputs into a Phased Array Waveguide Grating (PAWG). By providing center offset inputs to a PAWG the passband crossover point can be changed optimizing a different dynamic range and wavelength resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.