1. Broad-band amplification using a novel amplifier topology
- Author
-
S.J. Wilson, D. Lowe, and R. Di Muro
- Subjects
Optical amplifier ,Amplified spontaneous emission ,Materials science ,business.industry ,Amplifier ,Bandwidth (signal processing) ,chemistry.chemical_element ,Superradiance ,Noise figure ,Topology ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Erbium ,Optics ,chemistry ,Splitter ,Optoelectronics ,Electrical and Electronic Engineering ,business - Abstract
A new broad-band amplifier topology that provides a continuous gain across 75 nm (1528-1603 nm) of optical bandwidth using Er/sup 3+/-doped SiO/sub 2/ fiber is demonstrated. The noise figure is low and does not present any discontinuity across the entire amplification bandwidth. The topology has a buried 1550/1585-nm splitter to reduce input signal loss and to provide amplified spontaneous emission suppression. The topology has been optimized using hybrid fiber; Er/sup 3+/-doped SiO/sub 2/ for the first stage and Er/sup 3+/-doped TeO/sub 2/ for the second stage, achieving 82 nm (1526-1618 nm) of optical bandwidth.
- Published
- 2001