Low phase noise master oscillator generation and distribution for ALS and ALS-U

2019/10/16 by M. Betz, Q. Du, Betz, M. +8 · 1 citation
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced Frequency and Time Standards #Advancements in PLL and VCO Technologies #FOS: Physical sciences #Radio Astronomy Observations and Technology #physics.acc-ph

paper · pdf · doi:10.48550/arxiv.1910.07111

Poster presented at LLRF Workshop 2019 (LLRF2019, arXiv:1909.06754)

arxiv created 2019/10/16 · openalex publication_date 2019/10/16 · arxiv updated 2019/10/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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.

Citations

• 10th Low-Level RF Workshop (LLRF2022)

Cited by

• RFSoC Based LLRF System Design at ALS

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