Abstract
Erbium-doped fiber amplifiers (EDFAs) used in long wavelength-division-multiplexed (WDM) systems will require flat gain over the wavelength range of the WDM channels,1 A recent theoretical study2 showed that a Mach-Zehnder filter characteristic with appropriate parameters gives good gain equalization in the 1540-1560-nm wavelength range. In this paper we describe a novel filter, called the split-beam Fourier filter, that has a Mach-Zehnder characteristic with an easily designed wavelength period that offers simplicity and extremely low excess loss as well as tunability of the center wavelength and extinction.
© 1995 Optical Society of America
PDF ArticleMore Like This
Ju Han Lee and Namkyoo Park
CWK4 Conference on Lasers and Electro-Optics (CLEO:S&I) 1998
Eric Saint Georges
ThD5 Optical Amplifiers and Their Applications (OAA) 1995
B. M. Desthieux, D. Bayart, and J. L. Beylat
TuP5 Optical Fiber Communication Conference (OFC) 1995