Wavelength selective switch
US6285500A · kind A · utility
52Cited by
8References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0035
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reconfigurable bi-directional wavelength selective switch is disclosed. It has an optical system that is symmetric about a polarization modulator. The symmetric optical system consists of an input birefringent optical system and output birefringent optical system disposed around polarization modulator. The optical system delivers the wavelength channels that are to be switched as a superimposed wavelength channel incident the polarization modulator. As a result, crosstalk is reduced below -35 dB and greater optical performance is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.