# Simultaneous Transmission of Photonic Services over One Fiber with an ITU 100 GHz Grid
## 5 Conclusions
\begin{tabular}{l l} AOM & Acousto-optic modulator \\ ASE & Amplified spontaneous emission \\ BER & Bit error rate \\ CW & Continuous wave \\ CWDM & Coarse wavelength division multiplex \\ DP-8 QAM & Dual-polarization 8 quadrature amplitude modulation \\ DP-QPSK & Dual-polarization quadrature phase shift keying \\ DWDM & Dense wavelength division multiplex \\ EDFA & Erbium-doped fiber amplifier \\ FBG & Fiber Bragg grating \\ GMT & Greenwich mean time \\ GNSS & Global Navigation System Satellite \\ HD & High definition \\ IEEE & Institute of Electrical and Electronics Engineers \\ IPTV & Internet protocol television \\ UHD & Ultrahigh definition \\ ITU & International Telecommunication Union \\ NREN & National Research and Education Network \\ NTP & Network time protocol \\ OLS & Open-line system \\ \(\Phi\)-OTDR & Phase-sensitive optical time domain reflectometer \\ pre-FEC-BER & Pre-forward error correction-bit error rate \\ PTP & Precision time protocol \\ RF & Radio frequency \\ SDM & Space division multiplex \\ SI & International System of Units \\ TAI & International atomic time \\ TIC & Time interval counter \\ TWSTFT & Two-way satellite time and frequency transfer \\ USA & United States of America \\ \end{tabular}   
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