Overview
IEC TR 63675-1:2026 is a Technical Report published by the International Electrotechnical Commission (IEC). This report focuses on transmitting and receiving equipment for radiocommunication, specifically addressing transceiver technologies and the performance standards for oscillators utilizing photonics techniques. Part 1 of this series details low phase-noise oscillator technologies essential for supporting millimetre wave and terahertz wave radio communication services.
The report provides both the fundamental principles and practical applications of optoelectronic oscillation technologies, guiding the design and enhancement of high-performance radiocommunication transceivers. The adoption of photonics-based solutions supports compliance with radio regulations and minimizes the computing power required for advanced demodulation processes.
Key Topics
- Phase Noise in Oscillators: The report explains the origins and types of phase noise, its impact on signal quality, and its significance in high-frequency communications such as those utilizing QAM and OFDM modulation schemes.
- Optoelectronic Oscillator (OEO) Principles: The configuration and operation of OEOs are discussed, highlighting the advantages of combining optical and electronic components for improved signal stability.
- Photonics Techniques in Oscillator Design: Application of optical cavities-such as long fibre loops-enables higher quality factors, contributing to lower phase noise at higher frequencies.
- Micro-ring Resonator and Optical Frequency Comb Generation: The document outlines the use of micro-ring resonator technology to produce optical frequency combs with stable, low phase noise, facilitating reliable THz wave generation.
- Performance Guidelines: The report offers guidance for implementing optoelectronic oscillators and frequency combs to meet the requirements of emerging high-frequency radiocommunication systems.
Applications
Low phase-noise photonic oscillator technologies have pivotal applications in:
- Advanced Wireless Communications: Supporting 5G and future 6G systems operating at millimetre and terahertz wave frequencies, where low phase noise translates into higher data rates and improved signal integrity.
- High-Precision Radar: Enabling the development of radar systems with enhanced resolution and reduced error due to minimized phase fluctuations.
- Research and Development: Providing a foundation for experts and engineers involved in in the design and testing of next-generation communication hardware.
- Test and Measurement Equipment: Allowing the creation of reference sources for calibration and validation of RF/microwave devices.
- High-Capacity Optical Transmission: Integrating with advanced optical modulation formats to enable robust, high-capacity transmission where oscillator phase noise is a limiting factor.
Related Standards
IEC TR 63675-1:2026 is part of an evolving series dedicated to transmitting and receiving equipment for radiocommunication. Other related standards and resources include:
- IEC 63675 series: Broader principles and performance standards for radiocommunication equipment.
- IEC 60747: Semiconductor devices, relevant for understanding electronic oscillator components.
- IEC 60874: Fibre optic connectors and equipment, supporting optical links in oscillator systems.
- ITU-R Recommendations: Standards for across various radiofrequency services, including the specification of phase noise for communication systems.
- Electropedia (IEC 60050): International Electrotechnical Vocabulary for terms and definitions related to electronics, photonics, and radiocommunication.
For comprehensive guidelines on international best practices in the field of radiocommunication transceiver design and oscillator performance, professionals are encouraged to reference IEC TR 63675-1:2026 alongside related IEC and ITU standards. This ensures global interoperability, regulatory compliance, and optimal performance in high-frequency applications utilizing advanced photonics techniques.