Upconversion of optical signals with multi-longitudinal-mode pump lasers
Abstract
Multi-longitudinal-mode lasers have been believed to be good candidates as pump sources for optical frequency conversion. However, we present a semi-classical model for frequency conversion of optical signals with a multimode pump laser, which shows that fluctuations of the instantaneous pump power limit the conversion efficiency. In an experiment, we upconverted a 1550 nm optical signal in a periodically poled lithium niobate waveguide using with a multi-longitudinal-mode laser, an observed a maximum conversion efficiency of 70%, in good agreement with our theoretical model. Compared to single-mode pumping, multimode pumping is not a suitable technique for attaining stable near-unity-efficiency frequency conversion. However, the results obtained here could find application in characterization of the spectral or temporal structure of multi-longitudinal-mode lasers.
Cite
@article{arxiv.1204.6383,
title = {Upconversion of optical signals with multi-longitudinal-mode pump lasers},
author = {J. S. Pelc and G. -L. Shentu and Q. Zhang and M. M. Fejer and J. -W. Pan},
journal= {arXiv preprint arXiv:1204.6383},
year = {2015}
}
Comments
6 pages, 4 figures, comments are welcome!