@incollection{Fei17,
author = {Yang Fei and Xu Dan and Cai Haiwen and Qu Ronghui},
title = {120° Phase Difference Interference Technology Based on 3 × 3 Coupler and its Application in Laser Noise Measurement},
booktitle = {Optical Interferometry},
publisher = {IntechOpen},
address = {Rijeka},
year = {2017},
editor = {Alexander A. Banishev and Mithun Bhowmick and Jue Wang},
chapter = {11},
doi = {10.5772/66129},
url = {https://doi.org/10.5772/66129}
}