Abstract
A single-mode erbium fiber ring laser has an inherent behavior of mode-hopping a few gigahertz1,2 because of the long ring cavity. Although mode-hop-free single-mode operation can be achieved by using an active stabilization loop,3 such a method produces an associated frequency dithering (AFD) that is unacceptable to applications in interferometry and high-precision spectroscopy.
© 1995 Optical Society of America
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