Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1539395 | Optics Communications | 2010 | 6 Pages |
Abstract
We study the effects of the semiconductor laser noise on the generated beat signal, in Coherent Optical Domain Reflectometry device. By using a general laser noise analytical model, based on Volterra non-linear treatment of laser rate equations, we find a novel general expression of the beat photocurrent. We show that the coherence and the incoherence cases are observed for a different delay time intervals than the ones known in literature. We show that the coherence domain corresponds to a delay time lower than the half of the laser coherence time Ï0<1/2Ïc, and the incoherence domain corresponds for Ï0>2Ïc. An original shape of the beat signal autocorrelation function affected by the laser noises is obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
O. Boukari, L. Hassine, H. Bouchriha,