Optical waveguide gain-shaped amplifier including wavelength multiplexing coupler
US5416865A · kind A · utility
6Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Jul 15, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength multiplexing tapered fused fibre coupler is used to splice a second length of optical amplifier fibre between first and third lengths in such a way that pump power bypasses it. The second length is therefore unpumped and acts as a notch filter smoothing out the spectral gain characteristic of the first and third lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.