Behavioral Variations of Gain and NF Owing to Configurations and Pumping Powers

Belloui Bouzid

doi:10.4236/opj.2012.21002

Abstract

Six configurations are proposed in this paper to explore the gain and noise figure (NF) variations under the pumping power effect. I propose a new investigation of gain and NF at different EDFA configurations. Configurations such as SPSS, DPSS, DPSSF, TPDS, TPDSF, and QPDSF are designed, investigated and compared. A continuous progress of gain values is observed from SPSS to QPDSF, and a change of NF values related to configurations is recorded. The NF variations show different behaviors at different configurations. High gain of 59.49 dB and low NF value of 4.22 dB are recorded for the QPDSF configuration and low gain and low NF are recorded for the SPSS configuration.

Highlights

EDFA is a crucial milestone in optical communication systems and wide growing internet
High gain of 59.49 dB and low noise figure (NF) value of 4.22 dB are recorded for the quadruple pass double stage with filter (QPDSF) configuration and low gain and low NF are recorded for the single pass single stage (SPSS) configuration
In this paper general descriptions with illustrations and analysis are performed based on the studies of six different configurations: single pass single stage (SPSS), double pass single stage (DPSS), double pass single stage with filter (DPSSF), triple pass double stage (TPDS), triple pass double stage with filter (TPDSF) and quadruple pass double stage with filter (QPDSF) [8]

Summary

Introduction

EDFA is a crucial milestone in optical communication systems and wide growing internet. EDFA is an important part in the long haul optical fiber communication, and it is considered as another interesting research topic for laser phenomena of spontaneous and stimulated emission, where interaction of matter-lightmatter still in its early stage. The obligation for efficient systems to fulfill the practical need of communication for high capacity and high speed is extremely demanded due to the fast growing of high speed and high capacity transmission. The lack of entire description of behavioral study of gain and NF at different configurations in the published papers will affect the fast growing of optical amplifier and reduce its effectiveness. In this paper general descriptions with illustrations and analysis are performed based on the studies of six different configurations: single pass single stage (SPSS), double pass single stage (DPSS), double pass single stage with filter (DPSSF), triple pass double stage (TPDS), triple pass double stage with filter (TPDSF) and quadruple pass double stage with filter (QPDSF) [8]

Experiment Setup and Discussion of Results

Conclusion