The coax based MO distribution system in the ALS is going to be replaced by a modernized, lower phase noise and more interference tolerant version, ready to support ALS-U operation. System aspects are shown and several commercial analog and digital optical transceiver modules are compared for their suitability in this application. Furthermore, recent phase noise optimizing efforts in the ALS RF system are discussed and several prototypes for a custom built, low phase noise, frequency adjustable master oscillator around 500 MHz are shown.
@article{arxiv.1910.07111,
title = {Low phase noise master oscillator generation and distribution for ALS and ALS-U},
author = {M. Betz and Q. Du and B. Flugstad and K. Baptiste and M. Vinco},
journal= {arXiv preprint arXiv:1910.07111},
year = {2019}
}
Comments
Poster presented at LLRF Workshop 2019 (LLRF2019, arXiv:1909.06754)