title: Stable passive optical clock generation in SOA-based fiber lasers.
abstract: Stable optical pulse trains are obtained from 1.3-μm and 1.5-μm semiconductor optical amplifier (SOA)-based fiber lasers using passive optical technology. The waveforms depend on SOA currents, and the repetition rates can be tuned by varying the relative length of sub-cavities. The output pulse trains of these SOA-based fiber lasers are stable against intracavity polarization adjustment and environmental perturbation. The optical clock generation is explained in terms of mode competition, self-synchronization, and SOA saturation. Without resorting to any active modulation circuits or devices, the technology used here is simple and may find various applications in the future.
authors: Jing-Yun
authors: JY
authors: Wang
authors: Kuei-Huei
authors: KH
authors: Lin
authors: Hou-Ren
authors: HR
authors: Chen
mesh_terms: D000669:Amplifiers, Electronic; D054023:Lasers, Semiconductor; D055100:Optical Fibers; D055620:Optical Phenomena