A5092183385- Advanced Photonic Communication Systems
- Optical Network Technologies
- Photonic and Optical Devices
- Advanced Optical Network Technologies
- Optical Coherence Tomography Applications
Polytechnic University of Turin
2023-2024
The current challenge for the physical layer of next generation optical access network based on PON architectures is to increase capacity above 100 Gbps per wavelength. This target may require a revolution PON, moving from direct detection (DD) advanced modulation formats and coherent detection. In fact, performances full-coherent systems ultra-high bit rates are, in terms receiver sensitivity, significantly better than standard DD receivers, obtaining power budget more 30 dB. this scenario...
We analyze the metrology of transmitter and dispersion eye closure (TDEC) as defined in a 50G passive optical network (50G-PON) for assessing quality. First, we present theoretical evaluation adapting TDEC to 50G-PON, where equalized bandwidth limited avalanche-photodiode-based receivers are expected. optimize parameters proper numerical provide some guidelines implementing metric. also show that can be measured with both sampling real-time oscilloscopes provided there enough samples latter....
The capacity of passive optical networks (PONs) is continuously increasing, and it has been standardized up to 50 Gbit/s. two main standardization organizations, IEEE ITU-T, are actively working on the next-generation PON, which appears be a 100G-PON still based intensity modulation. Even though direct detection would preferred for its cost simplicity, choice coherent seems inevitable when bit rate reaches 200–400 Gbit/s, specifically guarantee power budget requirement an access network....
The Transmitter and Dispersion Eye Closure (TDEC) is a metric originally introduced by IEEE 802.3 for short reach optical transmission in datacenters later adopted 50G-PON ITU-T Recommendation G.9804.3. TDEC evaluates the performance of system as penalty due to eye-diagram closure, comparing it reference ideal transmitter. To this end, standard defines procedure be followed involving filtering, equalization definition time windows inside eye diagram. purpose article show correlation between...