Low noise, all-optical gain controlled Er3+ doped fibre amplifier using asymmetric control laser cavity design
- 1 January 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (9), 816-817
- https://doi.org/10.1049/el:19960517
Abstract
The authors demonstrate an Er3+ doped fibre amplifier with all-optical, automatic gain control and with near quantum limited, 1480 nm pumped noise performance. The amplifier gain is controlled by in-band laser action, and two design considerations are established for optimum noise performance: the control laser wavelength should be located in a region of high amplifier gain, and the laser cavity should be constructed to be as asymmetric as possible, ensuring minimum laser power at the signal input end of the amplifier.Keywords
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