| Autor: |
Alexandre Mottet, Raphaël Cousty, Jeremy Hulin, Thomas Anfray, Thomas Schmitt, Stephane Mariojouls, Walid Atitallah, Henri Porte, Jerome Hauden, Arnaud Laurent, Paul Berceau, Jean-Jacques Bonnefois |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 IEEE International Conference on Space Optical Systems and Applications (ICSOS). |
| Popis: |
Airbus Defence and Space developed with its partners iXBlue and CILAS an engineering breadboard (EBB) model of optical communication chain able to manage nonreturn to zero (NRZ) on-off-keying (OOK) and differential phase shift keying (DPSK) modulations at 10 Gb/s and 25 Gb/s. The EBB includes a digital processing unit (DPU), an optical transceiver (Tx/Rx) and a 5 W-optical booster. It uses wavelength division multiplexing (WDM) technology to increase the total data rate. This is a first step towards the development of an engineering model (EM) that will be developed in 20202021. This paper reports a part of measurements performed on the EBB, particularly the performance of NRZ-OOK and NRZ-DPSK modulations for 3 × 25 Gb/s channels. Measurements reveal that non-linear effects start to appear inside the 5 W-booster. Because of its constant envelope during bit time, NRZ-DPSK signal is less sensitive to power modulation-related non-linear effects than NRZ-OOK The average sensitivity of the NRZ-OOK and NRZ-DPSK links at 25 Gb/s are respectively −36.8 dBm and −40.2 dBm for bit error ratio (BER) at 10−3. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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