Gain improvement in a dual-stage S-band EDFA by filtration of forward C-band ASE

Harun, Sulaiman Wadi and Zulkifli, Mohd Zamani and Tamjis, Mohamad Rom and Ahmad, Harith (2008) Gain improvement in a dual-stage S-band EDFA by filtration of forward C-band ASE. Journal of Modern Optics, 55 (18). pp. 3035-3040. ISSN 0950-0340 E-ISSN 1362–3044

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Abstract

Gain improvement in a dual-stage S-band erbium-doped fiber amplifier (S-band EDFA) is demonstrated using a broadband fiber Bragg grating (FBG) operating in the conventional-band (C-band) region or a C-band/S-band wavelength division multiplexing (WDM) coupler which filters out the forward C-band amplified spontaneous emission (ASE) in the amplifier system, thus increasing the population inversion in the S-band region. The gain for the amplifier with the WDM coupler increases by about 8.5 dB with an input signal power of 40 dBm, compared to that of the conventional dual-stage amplifier. The gain improvement varies from 4.0–9.2 dB at a wavelength region between 1480 to 1512 nm without a significant noise figure penalty.

Item Type:	Article (Journal)
Additional Information:	8870/84361
Uncontrolled Keywords:	optical amplifier; S-band optical amplifier; depressed cladding EDF; S-band EDFA; gain improvement
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr M Z Zulkifli
Date Deposited:	09 Dec 2020 11:21
Last Modified:	09 Dec 2020 11:21
URI:	http://irep.iium.edu.my/id/eprint/84361

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