Open AccessOptical clock division based on dual-wavelength mode-locked semiconductor fiber ring laser
Author(s) -
Weiwei Zhang,
Junqiang Sun,
Jian Wang,
Xingliang Zhang,
Dexiu Huang
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.011231
Subject(s) - optics , ring laser , clock signal , fiber laser , optical amplifier , optoelectronics , materials science , laser , physics , electronic circuit , quantum mechanics
We have reported the optical clock division utilizing an injected mode-locked fiber ring laser incorporating semiconductor optical amplifiers (SOAs) and a dispersion compensation fiber (DCF). The clock division is mainly caused by the modulation competition between two wavelength components while both of them satisfy the harmonic mode-locking condition at the newly generated frequency. Stable second, third, and fourth clock divisions are obtained by properly adjusting the polarization controllers inside the ring cavity when a 10-GHz clock signal without any sub-harmonic frequency component is injected into the cavity. The radio-frequency spectra show good qualities of the obtained clock division trains.