Gain Control in L-Band Erbium-Doped Fiber Amplifier Incorporating Broadband Fiber Bragg Grating

Harun, Sulaiman Wadi and Tamchek, Nizam and Poopalan, Prabakaran and Ahmad, Harith (2002) Gain Control in L-Band Erbium-Doped Fiber Amplifier Incorporating Broadband Fiber Bragg Grating. Japanese Journal of Applied Physics, 41 (Part 2). L1459-L1460. ISSN 0021-4922

Full text not available from this repository.
Official URL: http://dx.doi.org/10.1143/JJAP.41.L1459

Abstract

Gain control in a two-stage long-wavelength (L-band) erbium-doped fiber amplifier (EDFA) is demonstrated. Two circulators and a broadband fiber Bragg grating (FBG) are used to route a wasted backward conventional band (C-band) amplified spontaneous emission (ASE) from the second stage and launch it back into the input end of the first stage. The amplifier gain is clamped at 16.5 dB with variation less than 0.2 dB and the dynamic range up to -7.5 dBm for the VOA loss of 4 dB. The clamped gain level can also be controlled from 15.0 to 22.9 dB by increasing the VOA loss from 0 to 32 dB without significant variation in the noise figure.

Item Type: Article
Uncontrolled Keywords: Erbium-doped fiber; Gain clamping; L-band; Optical amplifier; Two-stage amplifier
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 > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 05 Oct 2018 08:19
Last Modified: 05 Oct 2018 08:19
URI: http://eprints.um.edu.my/id/eprint/19622

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