Comparative Analysis of Two Types of Combined Power-Over-Fiber and Radio-Over-Fiber Systems Using Raman Amplification...

Area of Science:

• Optoelectronics
• Fiber optics communications
• Remote sensing technologies

Background:

• Analog radio-over-fiber (RoF) and power-over-fiber (PoF) systems are suitable for remote sensors in hazardous environments.
• Combining PoF and RoF offers a hybrid solution for practical applications where electrical wiring is challenging.

Purpose of the Study:

• To present a hybrid PoF and RoF architecture utilizing Raman amplification for radio frequency (RF) gain.
• To evaluate two high-power laser sources (HPLSs) for the PoF system: a 1480 nm Raman-based HPLS and a 1550 nm erbium-doped fiber amplifier (EDFA) based HPLS.
• To analyze the simulation of Raman scattering (SRS) in SMF 28 fiber links of varying lengths using these HPLSs.

Main Methods:

• Implementation of a hybrid PoF and RoF system architecture.
• Utilizing Raman amplification to achieve RF gain.
• Comparative analysis of two HPLSs (1480 nm Raman-based and 1550 nm EDFA-based) in SMF 28 fiber links.
• Evaluation of RF power gain (GRF), noise figure (NF), and spurious-free dynamic range (SFDR).

Main Results:

• The 1550 nm HPLS-based PoF system demonstrated superior performance.
• Lower noise figure (NF) degradation was observed with the 1550 nm HPLS, even with optical amplification noise.
• Comparative analysis revealed distinct impacts of each HPLS on RF signal parameters.

Conclusions:

• The hybrid PoF and RoF architecture effectively integrates power and RF transmission.
• The 1550 nm HPLS is a more suitable choice for this hybrid system due to its lower noise figure impact.
• This research provides valuable insights for designing robust remote sensing systems in challenging environments.