Fiber Bragg gratings for microwave photonics subsystems

Area of Science:

• Microwave photonics (MWP)
• Optoelectronics
• Signal Processing

Background:

• Microwave photonics integrates optical technologies with microwave systems to overcome limitations of traditional microwave-only approaches.
• Fiber Bragg gratings (FBGs) offer unique advantages like spectral flexibility, low loss, and compact size, making them crucial for MWP.

Purpose of the Study:

• To review recent developments in utilizing FBGs within microwave photonics subsystems.
• To highlight the application of FBGs in microwave photonic signal processing and arbitrary waveform generation.
• To discuss current limitations and propose potential solutions for FBG-based MWP systems.

Main Methods:

• Review of recent literature on fiber Bragg gratings in microwave photonics.
• Analysis of FBG applications in signal processing subsystems.
• Examination of FBG roles in arbitrary waveform generation.

Main Results:

• FBGs are demonstrated as versatile components for advanced microwave photonic functions.
• Specific subsystems for signal processing and waveform generation show significant progress using FBGs.
• Identified limitations in current FBG-based MWP technologies.

Conclusions:

• FBGs are pivotal for enhancing microwave photonic systems, particularly in signal processing and waveform generation.
• Further research is needed to address existing limitations and unlock the full potential of FBGs in MWP.
• The integration of FBGs offers a promising path for future microwave system development.