Abstract
Absolute laser-frequency assignment in projected dense wavelength division multiplexing (DWDM) networks remains an unsolved problem. Recently, a proposal was made to the International Telecommunications Union suggested a set of standard wavelengths within the erbium-doped-fiber-amplifier bandwidth. It recommends the use of a krypton line at 193.686 25 THz as an absolute frequency reference and the addition use of a set of 32 wavelengths evenly spaced at 100-GHz intervals around that value.1
© 1995 Optical Society of America
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