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  • Optical Fiber Communications Conference
  • OSA Trends in Optics and Photonics (Optica Publishing Group, 2002),
  • paper ThJ5

Flat, Adjustable Hybrid Optical Amplifier for 1610 nm–1640 nm band

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Abstract

Typical optical amplifiers contain filtering components for various reasons. A fixed, wavelength dependent filter is often used to create a flat (or at least known) spectrum at one operating point.1 Additionally, a variable loss element can be used to keep the spectral shape constant as the operating condition (signals, pumps, etc) varies. Gener- ally, current amplifiers contain separate components to serve these functions. Often a detailed fixed filter is designed to make the amplifier flat and a variable-optical attenuator is used to allow a change in gain without a change in shape.2

© 2002 Optical Society of America

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