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Coherent photonic Terahertz transmitters compatible with direct comb modulation.
Luis Gonzalez-Guerrero1, Guillermo Carpintero2
1Grupo de Optoelectronica y Tecnologia Laser (GOTL), Universidad Carlos III de Madrid, 28911, Madrid, Spain. lgguerre@ing.uc3m.es.
Scientific Reports
|June 10, 2022
Summary
We developed a new single-path method for coherent photonic terahertz (THz) systems. This approach simplifies complex modulation, enhances RF power, and avoids common issues like phase decorrelation.
Area of Science:
- Photonics
- Terahertz (THz) technology
- Optical communications
Background:
- Coherent photonic THz systems are crucial for high-speed communications.
- Current systems face challenges such as phase decorrelation, power loss, and complex matching circuits.
Purpose of the Study:
- To introduce a novel, simplified approach for coherent photonic THz systems.
- To overcome limitations of existing multi-path implementations.
- To enable complex modulation schemes with improved performance.
Main Methods:
- A single optical path design is proposed, eliminating the need for multiple optical components.
- The scheme is demonstrated to be compatible with direct modulation of optical frequency combs.
- Avoidance of demultiplexing two tones from the comb is a key feature.
Main Results:
- The novel approach successfully supports complex modulation in photonic THz systems.
- Significant reduction in system complexity by eliminating phase decorrelation and power loss issues.
- Demonstrated compatibility with direct modulation of optical frequency combs.
Conclusions:
- The proposed single-path scheme offers a more robust and efficient solution for coherent photonic THz systems.
- This advancement simplifies system design and enhances transmitted RF power.
- The method paves the way for more advanced THz communication technologies.
