title: Suppression of beating noise of narrow-linewidth erbium-doped fiber ring lasers by use of a semiconductor optical amplifier.
abstract: Beating noise in narrow-linewidth erbium-doped fiber ring lasers puts severe limitations on applications of the lasers. We demonstrate the suppression of beating noise in fiber ring lasers by using a semiconductor optical amplifier in the laser cavity, which acts as a high-pass filter. Two different ring structures are presented as examples to demonstrate this beating noise suppression.
authors.affiliation: Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA. leixu@ee.princeton.edu
authors.forename: Lei
authors.initials: L
authors.lastname: Xu
authors.forename: Ivan
authors.initials: I
authors.lastname: Glesk
authors.forename: Darren
authors.initials: D
authors.lastname: Rand
authors.forename: Varghese
authors.initials: V
authors.lastname: Baby
authors.forename: Paul R
authors.initials: PR
authors.lastname: Prucnal