Performance of erbium-doped fiber amplifier cascades in WDM multiple access lightwave networks
Abstract
A simple method to optimize individual EDFA performance parameters for multiwavelength operation in an amplifier cascade is presented. The pump power, pump wavelength, Erbium-doped fiber length, and input signal levels and their spectral range are each optimized. We find that 980-nm pumping, together with an optimum amplifier length of 9 m, provides adequate performance for six 10 Gb/s WDM channels to be transmitted through a cascade of 27 amplifiers, allowing a total system gain of more than 350 dB without requiring gain equalization methods.
- Publication:
-
IEEE Photonics Technology Letters
- Pub Date:
- September 1994
- DOI:
- 10.1109/68.324693
- Bibcode:
- 1994IPTL....6.1142A
- Keywords:
-
- Cascade Control;
- Channels (Data Transmission);
- Communication Networks;
- Fiber Optics;
- Frequency Division Multiplexing;
- Lasers;
- Mathematical Models;
- Network Control;
- Optical Communication;
- Wavelength Division Multiplexing;
- Additives;
- Amplification;
- Erbium;
- Information Theory;
- Laser Pumping;
- Optimization;
- Parameter Identification;
- Signal To Noise Ratios;
- Lasers and Masers