Gain-clamped two-stage L-band EDFA with a FBG laser in second stage

Harun, Sulaiman Wadi and Ahmad, Harith (2003) Gain-clamped two-stage L-band EDFA with a FBG laser in second stage. Optics & Laser Technology, 35 (8). pp. 645-647. ISSN 0030-3992

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Official URL: http://dx.doi.org/10.1016/S0030-3992(03)00112-9

Abstract

A gain-clamped two-stage L-band EDFA is demonstrated by simply incorporating two different FBGs on both side of EDF in the second stage. It forms a FBG laser at 1560 nm to clamp the gain in the system. The gain is clamped at about 16.5 dB with gain variation of less than 1.0 dB at dynamic range up to -10 dBm. A flat gain is obtained over 30 nm of wavelength range from 1568 to 1598 nm with a gain variation of less than 1.1 dB. At the flat region, the noise figure varies from 5.0 to 5.8 dB, which is slightly higher compared to those of unclamped amplifier. The advantage of this technique is that the FBG laser does not disturb the WDM signals in the flat gain region.

Item Type: Article
Uncontrolled Keywords: Gain clamping; Optical amplifier; L-band EDFA; Two-stage EDFA; Fiber Bragg grating
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: 11 Oct 2018 08:13
Last Modified: 11 Oct 2018 08:13
URI: http://eprints.um.edu.my/id/eprint/19643

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