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  • Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication
  • 1993 OSA Technical Digest Series (Optica Publishing Group, 1993),
  • paper ThD2
  • https://doi.org/10.1364/OFC.1993.ThD2

Automatic gain flattening in Er-doped-fiber amplifiers

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Abstract

Optical amplifiers with broad, flat gain spectra are important for multiple-wavelength systems and for short-pulse amplification. Various schemes have been proposed for flattening the gain spectrum of Er-doped-fiber amplifiers (EDFA’s), most of which are based on passive or active filtering of the high-gain features. The success of these techniques, however, depends on the amplifier’s operating point. Here we describe a system that automatically flattens and stabilizes the gain spectrum, with considerable tolerance to variations in the amplifier’s operating point.

© 1993 Optical Society of America

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