Direct measurement of coherent light proportion from a practical laser source
Quantum Physics
2024-01-17 v1
Abstract
We present a technique to estimate the proportion of coherent emission in the light emitted by a practical laser source without spectral filtering. The technique is based on measuring interferometric photon correlations between the output ports of an asymmetric Mach-Zehnder interferometer. With this, we characterize the fraction of coherent emission in the light emitted by a laser diode when transiting through the lasing threshold.
Cite
@article{arxiv.2310.10377,
title = {Direct measurement of coherent light proportion from a practical laser source},
author = {Xi Jie Yeo and Eva Ernst and Alvin Leow and Jaesuk Hwang and Lijiong Shen and Christian Kurtsiefer and Peng Kian Tan},
journal= {arXiv preprint arXiv:2310.10377},
year = {2024}
}
Comments
7 pages, 4 figures