title: Switchable single-longitudinal-mode dual-wavelength erbium-doped fiber ring laser incorporating a semiconductor optical amplifier.
abstract: We propose and demonstrate a novel single-longitudinal-mode (SLM) dual-wavelength erbium-doped fiber ring laser incorporating a semiconductor optical amplifier. The SOA biased in its low-gain regime greatly reduces the gain competition of the two wavelengths. The stable SLM operation is guaranteed by a passive triple-ring cavity and a fiber Fabry-Perot filter. The dual-wavelength output with a 40 GHz wavelength spacing is switchable in the range of 1533-1565.4 nm.
authors.affiliation: Department of Electronic Engineering, Tsinghua University, Beijing 100084, China. shilong.pan@gmail.com
authors.forename: Shilong
authors.initials: S
authors.lastname: Pan
authors.forename: Xiaofan
authors.initials: X
authors.lastname: Zhao
authors.forename: Caiyun
authors.initials: C
authors.lastname: Lou