Rotation Active Sensors Based on Ultrafast Fibre Lasers

Area of Science:

• Physics
• Optical Engineering
• Laser Technology

Background:

• Ring laser gyroscopes utilize the optical Sagnac effect for high-precision angular velocity measurements.
• Advancements in ultrafast fibre lasers enable new applications in dual-comb spectroscopy and gyroscopy.
• Ultrafast fibre lasers offer compactness, low cost, and maintenance-free operation for sensing.

Purpose of the Study:

• To provide a comprehensive overview of gyroscopic sensing and ultrafast fibre laser technology.
• To bridge the gap between the development of ultrafast laser gyroscopes and their practical implementation.
• To discuss recent advancements, challenges, and future perspectives in the field.

Main Methods:

• Overview of the fundamental principles of gyroscopic sensing.
• Review of ultrafast fibre laser technology, focusing on bidirectional generation.
• Analysis of ultrashort pulse generation regimes for laser gyroscope operation.

Main Results:

• Ultrafast laser gyroscopes show promise in overcoming sensing limitations like frequency lock-in.
• The technology offers potential for enhanced accuracy and broader applications in navigation and geodesy.
• Identified bottlenecks in current ultrafast laser gyroscope concepts.

Conclusions:

• Ultrafast fibre laser gyroscopes represent a significant advancement in sensing technology.
• Further development is needed to address physical limitations and improve measurement methodologies for commercial viability.
• The field holds substantial promise for future commercial gyroscope applications.