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Proceedings Paper

Experimental comparison of two pump control schemes for suppressing transient gain excursions in EDFAs
Author(s): Mladen Males; Antonio Cantoni
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Paper 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.

Paper Details

Date Published: 8 December 2005
PDF: 10 pages
Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60211D (8 December 2005); doi: 10.1117/12.635096
Show Author Affiliations
Mladen Males, Univ. of Western Australia (Australia)
Antonio Cantoni, Univ. of Western Australia (Australia)


Published in SPIE Proceedings Vol. 6021:
Optical Transmission, Switching, and Subsystems III
Rodney S. Tucker; Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama, Editor(s)

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