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White Rabbit
Commit 3dae565c authored by Maciej Lipinski's avatar Maciej Lipinski
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[WIP] Sent to Javier

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presentations/WR_Maciej_EFTS_2019/wr_efts_2019.tex
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...@@ -418,25 +418,25 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -418,25 +418,25 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
% \includegraphics<4->[height=2.3cm]{misc/inaccuracy-sources-fixed-delays.jpg} % \includegraphics<4->[height=2.3cm]{misc/inaccuracy-sources-fixed-delays.jpg}
% \end{center} % \end{center}
\begin{columns}[c] \begin{columns}[c]
\column{0.6\textwidth}\vspace{-0.5cm} \column{0.65\textwidth}\vspace{-0.5cm}
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item<1-> \textbf{Bitslide} -- measurement uncertainty \item<1-> \textbf{Bitslide} -- measurement uncertainty
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item Measured each time link goes up \item Measured each time link goes up
\item Value provided by GTX of FPGA \item Value provided by GTX of FPGA
\item Error: $\pm$25ps [7] \item Error: $\pm$35ps for GTX
\item Remedy: ensure bitslide is zero \\(ongoing work at CERN) \item Remedy: ensure bitslide is zero \\(ongoing work at CERN)
\end{itemize} \end{itemize}
\item<2-> \textbf{PCB, FPGA, SFP} -- hardware delay uncertainty \item<2-> \textbf{PCB, FPGA, SFP} -- hardware delay uncertainty
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item Calibration uncertiainty: sdev of 2ps [7] \item Calibration uncertiainty: sdev of 2ps [7]
\item Linear dependency on temp (700ps over $-10..55^oC$): \item Linear dependency on temperature\\ (700ps over $-10..55^oC$):
\begin{itemize}\tiny \begin{itemize}\tiny
\item CuteWR: tx $-8.4ps/K$, rx $13.3ps/K$ [6] \item CuteWR: tx $-8.4ps/K$, rx $13.3ps/K$ [6]
\item Switch: 8ps/K [7] \item Switch: 8ps/K [7]
\item WR-Zen: 4ps/K [7] \item WR-Zen: 4ps/K [7]
\end{itemize} \end{itemize}
\item Remedy: active compensation \\(implemented for LHASSO, 50ps over $-10..55^oC$ [6]) \item Remedy: active compensation \\(for LHASSO, 50ps over $-10..55^oC$ [6])
% \item SFP delay dependency on input power, error up to 30ps [2] % \item SFP delay dependency on input power, error up to 30ps [2]
\end{itemize} \end{itemize}
\end{itemize} \end{itemize}
...@@ -469,7 +469,7 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -469,7 +469,7 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item<1-> \textbf{SFP} -- tx wavelength uncertainty \item<1-> \textbf{SFP} -- tx wavelength uncertainty
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item<2-> Allowed departure from nominal value \\(10nm at 1490nm, 50nm at 1310nm [7]) \item<2-> IEEE802.3ah allows nominal value departures\\(10nm at 1490nm, 50nm at 1310nm)
\item<3-> Linear dependency on SFP temp: \item<3-> Linear dependency on SFP temp:
\begin{itemize}\tiny \begin{itemize}\tiny
\item SFP@1310nm: $0.11 ps/(K \cdot km)$ [6] \item SFP@1310nm: $0.11 ps/(K \cdot km)$ [6]
...@@ -486,15 +486,17 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -486,15 +486,17 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\item G652.D at 1490/1550: $-0.05 ps/(K\cdot km)$ [7] \item G652.D at 1490/1550: $-0.05 ps/(K\cdot km)$ [7]
\end{itemize} \end{itemize}
\end{itemize} \end{itemize}
\item<5-> Significant for links $>10km$ \item<5-> Significant for links $>10km$ [7]
\item<6-> Remedy: temp-stabilized SFP, closer wavelength \\(CH21\& CH23 @ 1560.61 \& 1558.98 in SKA [7]) \item<6-> Remedy: temp-stabilized SFP, closer wavelength \\(CH21\& CH23 @ 1560.61 \& 1558.98 in SKA [7])
\end{itemize} \end{itemize}
\column{0.45\textwidth} \column{0.45\textwidth}
\begin{center}\vspace{-0.5cm} \begin{center}\vspace{-0.5cm}
\includegraphics<3>[width=0.6\textwidth]{measurements/sfp-temp-dependence.jpg} \includegraphics<3>[width=0.6\textwidth]{measurements/sfp-temp-dependence.jpg}
\includegraphics<4-5>[width=\textwidth]{measurements/fiber-temp-dependency.jpg} \includegraphics<4>[width=\textwidth]{measurements/fiber-temp-dependency.jpg}
\includegraphics<6>[width=\textwidth]{applications/SKA-DWDM.jpg} % \includegraphics<5->[width=\textwidth]{applications/SKA-DWDM.jpg}
\includegraphics<5->[width=\textwidth]{measurements/PBowen-link-errors.jpg}
% \tiny\pause\pause\pause % \tiny\pause\pause\pause
% Figure source: [1] % Figure source: [1]
\end{center} \end{center}
...@@ -522,7 +524,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -522,7 +524,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item Flicker PM noise: -100 dBc at 1 Hz \item Flicker PM noise: -100 dBc at 1 Hz
\begin{itemize}\tiny \begin{itemize}\tiny
\item $<$ 10Hz, limits MDEV at $\tau=1s$ to 4E-13 \item Dominant $<$ 10Hz,
\item MDEV at $\tau=1s$ to 4E-13
\item LVDS input clock buffer and clock routing \item LVDS input clock buffer and clock routing
\end{itemize} \end{itemize}
\item White PM noise: -108 dBc \item White PM noise: -108 dBc
...@@ -543,8 +546,9 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -543,8 +546,9 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\includegraphics<1>[width=.99\textwidth]{measurements/DDMTD-noise.jpg} \includegraphics<1>[width=.99\textwidth]{measurements/DDMTD-noise.jpg}
\includegraphics<2>[width=.99\textwidth]{measurements/DDMTD-future-tech-noise.jpg} \includegraphics<2>[width=.99\textwidth]{measurements/DDMTD-future-tech-noise.jpg}
\end{center} \end{center}
\end{columns} \end{columns}\vspace{0.5cm}
\begin{center} \begin{center}
\tiny NOTE: Carrier is 10MHz\\
\tiny All above data is based on [13] \tiny All above data is based on [13]
\end{center} \end{center}
\end{frame} \end{frame}
...@@ -646,13 +650,13 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -646,13 +650,13 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item Jitter improvement [13, 15] \item Jitter improvement [13, 15]
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item GM: 9ps to $<$2ps RMS 10Hz-100kHz \item GM: 9ps to 1ps RMS 1Hz-100kHz
\item BC: \item BC: 11ps to $<2$ps RMS 1Hz-100kHz
\end{itemize} \end{itemize}
\item ADEV improvement [13, 15] \item MDEV improvement [13, 15]
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item GM: 1.4E-11 to $<$5E-13 $\tau$=1s ENBW 50Hz \item GM: 2E-12 to $<$5E-13 $\tau$=1s ENBW 50Hz
\item BC: \item BC: 4E-12 to $<$7E-13 $\tau$=1s ENBW 50Hz
\end{itemize} \end{itemize}
\end{itemize} \end{itemize}
...@@ -666,8 +670,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -666,8 +670,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\small \begin{itemize}\small
\item<1-> Standardization in IEEE 1588: \item<1-> Standardization in IEEE 1588:
\begin{itemize}\scriptsize \begin{itemize}\scriptsize
\item High Accuracy sub-committee in dedicated to WR \item High Accuracy sub-committee dedicated to WR
\item WR to become Default High Accuracy Profile \item High Accuracy, a.k.a. WR, to become a third Default PTP Profile
\item Revised standard expected in 2019. \item Revised standard expected in 2019.
\end{itemize} \end{itemize}
\item<2-> Long-haul link \item<2-> Long-haul link
...@@ -751,13 +755,17 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -751,13 +755,17 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
%For more information see http://www.ohwr.org/projects/white-rabbit/wiki %For more information see http://www.ohwr.org/projects/white-rabbit/wiki
\end{frame} \end{frame}
\begin{frame}{Need more information?} \begin{frame}{QA}
\begin{center} \begin{center}
\includegraphics[height=4.0cm]{misc/white_rabbit_end.png} \includegraphics[height=4.0cm]{misc/white_rabbit_end.png}
\end{center} \end{center}
\begin{center} \begin{center}
http://www.ohwr.org/projects/white-rabbit/wiki Thank you for attention!\\ Any questions?
\end{center}
\vspace{1cm}
\begin{center}\scriptsize
WR Project page: http://www.ohwr.org/projects/white-rabbit/wiki
\end{center} \end{center}
\end{frame} \end{frame}
...@@ -784,6 +792,27 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline ...@@ -784,6 +792,27 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\end{enumerate} \end{enumerate}
\end{frame} \end{frame}
\begin{frame}{References}
\begin{center}
Backup slides
\end{center}
\end{frame}
\begin{frame}{GM Switch with LJD: PM noise and Modfied ADEV}
\begin{center}
\includegraphics[width=.5\textwidth]{measurements/WRSlowJitter/pn.png}
\includegraphics[width=.5\textwidth]{measurements/WRSlowJitter/mdev.png}
\end{center}
\end{frame}
\begin{frame}{BC Switch with LJD: PM noise and Modfied ADEV}
\begin{center}
\includegraphics[width=.5\textwidth]{measurements/WRSlowJitter/slave_pn.png}
\includegraphics[width=.5\textwidth]{measurements/WRSlowJitter/slave_mdev.png}
\end{center}
\end{frame}
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \subsection{} % \subsection{}
% \begin{frame}{Performance Enhancements} % \begin{frame}{Performance Enhancements}
......
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