Gain-clamping in L-band zirconium-erbium co-doped fiber amplifier with FBG based lasing control

Sadik, Serif Ali and Durak, Firat Ertac and Pau, Mukul Chandra and Zulkipli, Nur Farhanah and Altuncu, Ahmet and Harun, Sulaiman Wadi (2022) Gain-clamping in L-band zirconium-erbium co-doped fiber amplifier with FBG based lasing control. Microwave and Optical Technology Letters, 64 (2). pp. 389-394. ISSN 0895-2477, DOI

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In this study, gain clamping performance in an L-band zirconium-erbium co-doped fiber amplifier (Zr-EDFA) with a very short length of heavily doped fiber and FBG based lasing control structure was presented. A simple gain clamping design based on a symmetrical narrow band C-band fiber Bragg grating (FBG) pair addition was used in the L-band Zr-EDFA with bidirectionally pumping scheme. An L-band gain of higher than 25 dB was obtained with a maximum noise figure (NF) of 5 dB in the conventional Zr-EDFA design which was higher than the previous results obtained with forward pumping scheme. When a couple of narrow band FBGs at Bragg reflection wavelength of 1542 nm are used as the lasing mechanism for gain clamping in L-band operation, small signal gain of Zr-EDFA decreases, but on the other hand, the gain is clamped at almost 15.5 dB with a flattened gain spectrum along a dynamic range of 25 dB for the signal input powers between -30 and -5 dBm with the expense of 1.5 dB NF penalty.

Item Type: Article
Funders: Ministry of National Education - Turkey
Uncontrolled Keywords: Fiber bragg grating; Gain clamping; Optical fiber amplifier; Zirconium-erbium co-doped fiber
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Apr 2022 06:18
Last Modified: 28 Apr 2022 06:18

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