Experimental comparison of two pump control schemes for suppressing transient gain excursions in EDFAs

Mladen Males; Antonio Cantoni

doi:10.1117/12.635096

8 December 2005 Experimental comparison of two pump control schemes for suppressing transient gain excursions in EDFAs

Mladen Males, Antonio Cantoni

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 60211D (2005) https://doi.org/10.1117/12.635096
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

Experimental results of a comparative study of two closed-loop systems for suppressing transient gain excursions in an erbium-doped fibre amplifier (EDFA) are presented. One of these systems is referred to as the closed-loop system with the additive pump-control block and the other system is referred to as the closed-loop system with the multiplicative pump-control block. In the experimental results, it is observed that the input pump power needs to be clipped only in the closed-loop system with the additive pump-control block. The pump power clipping is required, as the controller is requesting a negative pump power. In the experimental results, the pump power clipping in the closed-loop system with the additive pump-control block is observed to have a negative side effect in the form of large transient EDFA gain excursions. Thus, the closed-loop system with the multiplicative pump-control block can offer significant advantages over the closed-loop system with the additive pump-control block for suppressing the transient EDFA gain excursions.

Citation Download Citation

Mladen Males and Antonio Cantoni "Experimental comparison of two pump control schemes for suppressing transient gain excursions in EDFAs", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60211D (8 December 2005); https://doi.org/10.1117/12.635096

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