Improving the performance of double-pass EDFA utilizing chirped bragg grating as feedback loop

• Main Authors: Jamaludin M.Z., Bakar A.A.A., Naji A.W., Rahman F.A., Mahdi M.A., Abdullah M.K.
• Other Authors: 57216839721
• Format: Article
• Published: 2023
• Subjects: Compensated double-pass erbium-doped fiber amplifier; Gain- And noise-figure improvement; Optical amplifier; Erbium; Feedback amplifiers; Fiber Bragg gratings; Light amplifiers; Signal gain; Signal power; Fiber lasers

A new dispersion-compensated double-pass erbium-doped fiber amplifier (EDFA) with high gain and improved noise-figure characteristics is demonstrated using chirped fiber Bragg grating. The performance is compared with that of the conventional double-pass EDFA. The signal gain is improved by as much as 18.6 dB at -40-dBm signal power with negligible noise penalty. The proposed amplifier architecture can improve the signal gain and at the same time compensate the signal dispersion. � 2005 Wiley Periodicals, Inc.