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, DOI

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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
Uncontrolled Keywords: Depressed cladding EDF; Gain improvement; Optical amplifier; S-band EDFA; S-band optical amplifier
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Nov 2018 04:37
Last Modified: 28 Nov 2018 04:37

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