This work presents some recent results in the field of liquid helium {bulk acoustic wave} oscillators. The discussion covers the whole development procedure starting from component selection and characterization and concluding with actual phase noise measurements. The associated problems and limitations are discussed. The unique features of obtained phase noise power spectral densities are explained with a proposed extension of the Leeson effect.
@article{arxiv.1309.5445,
title = {Advances in Development of Quartz Crystal Oscillators at Liquid Helium Temperatures},
author = {Maxim Goryachev and Serge Galliou and Joël Imbaud and Philippe Abbé},
journal= {arXiv preprint arXiv:1309.5445},
year = {2013}
}