Gain clamped L-band EDFA using a fiber Bragg grating in two stage configuration

Harun, Sulaiman Wadi and Tamchek, Nizam and Ahmad, Harith (2003) Gain clamped L-band EDFA using a fiber Bragg grating in two stage configuration. Microwave and Optical Technology Letters, 37 (4). pp. 265-266. ISSN 0895-2477, DOI

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A gain clamping technique for the long-wavelength-band erbium-doped fiber amplifier (L-band EDFA) is presented. If uses two circulators and a fiber Bragg grating (FBG) to route a backward amplified spontaneous emission (ASE) from a second-stage amplifier and launch it back into the first stage. The use of a broadband (BB) FBG has shown a better gain clamping effect, compared to a narrowband (NB) FBG. The amplifier gain for the BB FBG set up is clamped at 15.0 dB with a gain variation of less than 0.1 dB for an input power as high as -5 dBm. The use of a BB FBG has also flattened the gain spectrum.

Item Type: Article
Uncontrolled Keywords: Gain clamping; L-band EDFA; Optical amplifier; Population inversion; Two-stage EDFA
Subjects: Q Science > Q Science (General)
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: 11 Oct 2018 07:29
Last Modified: 11 Oct 2018 07:29

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