AI Article Synopsis
- The study investigates how RIN (Relative Intensity Noise) transfer from the pump laser affects the performance of a high-speed optical transmission system using a specific type of laser amplifier.
- The research assesses the impact of various factors, like the reflectivity of the cavity front-end and the ratio of forward pump power, on the system's signal quality over long distances.
- Results show that the optimal balance between RIN and ASE (Amplified Spontaneous Emission) impairments allows for a maximum transmission distance of 6479 km in the tested 10 × 30 Gbaud DP-QPSK setup.
Article Abstract
We experimentally evaluate the influence of RIN transfer from pump to signal on the transmission performance of a 10 × 30 Gbaud DP-QPSK transmission system using a 2nd-order ultra-long Raman fiber laser amplifier, considering the effect of cavity front-end reflectivity and forward pump power ratio. The evolution of the Q-factors with distance up to maximum reach is monitored for a 10 × 30 Gbaud DP-QPSK transmission system with WDM channels between 1542.94 nm to 1550.12 nm. A maximum transmission distance of 6479 km is found for configurations with low forward pump powers corresponding to the optimal balance between RIN and ASE impairments.
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| http://dx.doi.org/10.1364/OE.25.021454 | DOI Listing |
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View Article and Find Full Text PDFArticle Synopsis
- The study investigates how RIN (Relative Intensity Noise) transfer from the pump laser affects the performance of a high-speed optical transmission system using a specific type of laser amplifier.
- The research assesses the impact of various factors, like the reflectivity of the cavity front-end and the ratio of forward pump power, on the system's signal quality over long distances.
- Results show that the optimal balance between RIN and ASE (Amplified Spontaneous Emission) impairments allows for a maximum transmission distance of 6479 km in the tested 10 × 30 Gbaud DP-QPSK setup.
Relative intensity noise transfer from the pump to the signal in 2nd-order ultra-long Raman laser amplifiers for telecommunications is characterized numerically and experimentally. Our results showcase the need for careful adjustment of the front FBG reflectivity and the relative contribution of forward pump power, and their impact on performance. Finally, our analysis is verified through a 10 × 30 GBaud DP-QPSK transmission experiment, showing a large Q factor penalty associated with the combination of high forward pumping and high reflectivities.
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