Impact of transceiver selection on synchronization accuracy in White Rabbit Networks

Michal Špaček; Josef Vojtěch; Jaroslav Roztočil

doi:10.1117/12.3029202

3 October 2024 Impact of transceiver selection on synchronization accuracy in White Rabbit Networks

Michal Špaček, Josef Vojtěch, Jaroslav Roztočil

Proceedings Volume 13144, Infrared Remote Sensing and Instrumentation XXXII; 131440Z (2024) https://doi.org/10.1117/12.3029202
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Conference Poster

Abstract

Achieving optimal synchronization accuracy between two White Rabbit devices hinges on the proper selection of transceivers, which act as electro-optical converters connecting WR devices to the optical network infrastructure. The correct choice of transceivers can significantly improve resilience to changes in the time offset between WR devices due to temperature fluctuations in the connecting optical fiber. To compare the performance of BiDi WDM and DWDM transceivers, an experimental setup was established under laboratory conditions to simulate a real optical network used for distributing precise time and frequency between two remote locations. The optical connection was emulated by integrating a 20 km G.652.D optical fiber into a climatic chamber, which provided variable environmental conditions similar to those experienced in real applications. The study compared BiDi WDM 1310/1550 nm transceivers with DWDM Ch33/Ch34 transceivers. Results showed that DWDM transceivers exhibited nearly thirteen times less sensitivity to temperature-induced changes in the optical connection, leading to a smaller time offset. Therefore, for achieving the highest accuracy in synchronizing WR devices in practical applications, DWDM transceiver technology is essential.

Citation Download Citation

Michal Špaček, Josef Vojtěch, and Jaroslav Roztočil "Impact of transceiver selection on synchronization accuracy in White Rabbit Networks", Proc. SPIE 13144, Infrared Remote Sensing and Instrumentation XXXII, 131440Z (3 October 2024); https://doi.org/10.1117/12.3029202

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