Refractive index
Intensity (physics)
Materials science
Optics
Optical fiber
Graded-index fiber
Fiber optic sensor
Intensity modulation
Spectrum analyzer
Normalized frequency (unit)
Sensitivity (control systems)
Step-index profile
Light intensity
Fiber
Optoelectronics
Physics
Phase modulation
Electronic engineering
Phase-locked loop
Frequency synthesizer
Phase noise
Engineering
Composite material