Gain enhancement in partial double-pass L-band EDFA system using a band-pass filter

Authors

• Sulaiman Wadi HarunFollow
• Norhakimah Md Samsuri
• Harith AhmadFollow

Document Type

Article

Publication Date

1-1-2005

Abstract

The partial double-pass L-band erbium-doped fiber amplifier with enhanced gain characteristic is demonstrated using a band pass filter (BPF). The BPF is incorporated to the doublepass route to suppress the amplified spontaneous emission from the single-pass output for gain enhancing. The gain of 515 dB is obtained for the proposed amplifier at input signal power of -40 dBm, which is approximately 5.2 dB higher compared with the system without the BPF. However, the insertion toss of the BPF contributes to a small noise figure penalty in the system. This amplifier can be easily modified to support dense wavelength division multiplexing system application by using multiple channel BPFs or interleaver.

Keywords

Double-pass amplifier, L-band EDFA, Optical amplifier, Two-stage EDFA

Publication Title

Laser Physics Letters

ISSN

1612-2011

Recommended Citation

Harun, Sulaiman Wadi; Samsuri, Norhakimah Md; and Ahmad, Harith, "Gain enhancement in partial double-pass L-band EDFA system using a band-pass filter" (2005). Research Publications (2000 to 2005). 1102.
https://knova.um.edu.my/research_publications_2000_2005/1102

Divisions

fac_eng,PHYSICS

Volume

2

Issue

1

Publisher

John Wiley & Sons