Compact optical wavelength add/drop multiplexer
US6792211B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method and system for selectively adding and dropping selected wavelength components &lgr;=&lgr;k1 and &lgr;=&lgr;k2 (1≦k1≦k2≦K) in a light signal having a sequence of wavelengths &lgr;k (k=1, 2, . . . , K), using a dual fiber collimator at each end of an OADM device that contains an optical filter that transmits a selected wavelength &lgr;k1 and reflects the other wavelengths &lgr;k. Connecting two optical communication terminals in a network allows addition and dropping of a selected wavelength. Estimated total optical insertion losses, between the common port and the express port, for 2×2 and 3×3 add/drop combinations are 0.4 dB and 0.8 dB, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.