Interrogation of Ultra-weak FBG Array using Double-pulse and Heterodyne Detection

Keyphrases

• Heterodyne Detection 100%
• Double Pulse 100%
• Pulse Detection 100%
• Ultra-weak FBG Array 100%
• High Performance 50%
• Fiber Length 50%
• Interrogation Technique 50%
• Heterodyning 50%
• Signal-to-noise Ratio 50%
• Probe Pulse 50%
• Detection Method 50%
• Rayleigh Scattering 50%
• Laser Source 50%
• Triangular Wave 50%
• Frequency Drift 50%
• Ultra-weak FBG 50%
• Single Probe 50%
• Sinusoidal Wave 50%
• Low-frequency Vibration 50%
• Differential Signal 50%
• Sensing Frequency 50%
• Length Variation 50%
• Differential Signaling 50%

Engineering

• Fiber Bragg Grating 100%
• Signal-to-Noise Ratio 33%
• Fibre Length 33%
• Input Waveform 33%
• Low Frequency Vibration 33%