Harun, S W and Paul, Mukul Chandra and Huri, N A D and Hamzah, A and Das, Shyamal and Pal, Mrinmay and Bhadra, Shyamal Kumar and Ahmad, H and Yoo, S and Kalita, M P and Boyland, A J and Sahu, J K (2011) Double-pass erbium-doped zirconia fiber amplifier for wide-band and flat-gain operations. Optics and Laser Technology, 43 (7). pp. 1279-1281. ISSN 0030-3992

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The double-pass erbium-doped zirconia fiber amplifier (EDZFA) is proposed and demonstrated to provide a wide-band amplification as well as flat-gain operation in both the C- and L-band regions using only a single-gain medium. The proposed amplifier utilizes an erbium-doped zirconia fiber (EDZF) with erbium ion concentration of 2800 ppm as a gain medium. The medium is fabricated in a ternary glass host, zirconia-yttria-aluminum codoped silica fiber through solution doping technique along with modified chemical vapor deposition (MCVD). Compared to a single-pass operation, the double-pass EDZFA shows a better gain performance. At input signal power of 0 dBm and the optimum EDZF length of 2 m, a flat gain of around 16 dB is achieved by the proposed double-pass amplifier with gain variation of approximately 2.5 dB throughout the wavelength range from 1530 to 1590 nm. However, the noise figure of the double-pass amplifier is slightly higher than that of the single-pass due to inefficient population inversion at the input part of the amplifier. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Erbium-doped zirconia fiber; Optical amplifier; Wide-band optical amplifier
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Jan 2012 12:11
Last Modified: 21 Nov 2012 06:24
URI: http://cgcri.csircentral.net/id/eprint/249

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