Refractive index profile

Double-clad fiber

Metallurgy

Materials science

Mode volume

Optical fiber

Step-index profile

Fiber optic sensor

Frequency synthesizer

Phase noise

Physics

Multi-mode optical fiber

Cladding (metalworking)

Amplitude

Modal dispersion

Optics

Single-mode optical fiber

Plastic optical fiber

Normalized frequency (unit)

Graded-index fiber

Phase-locked loop

Journal of Optical Communications

The study clarified spatial single mode laser interaction with measured pulse based parabolic index multimode fiber. Peak power level margin, maximum/minimum signal amplitude margin after parabolic index multimode fiber are measured with core radius of 25 µm, cladding thickness of 10 µm, refractive index peak of 1.4142, length of 300 m, and refractive index step of 1%. Maximum signal power margin against spectral frequency after PIN light detector based parabolic fiber properties is tested under the same operating parameters. The signal power amplitude/power within parabolic index multimode fiber is also measured based on variations of fiber lengths and relative refractive index step. The study implies the multimode graded index fibers with parabolic or near parabolic index profile cores have transmission bandwidths than other multimode fibers.

Spatial single mode laser source interaction with measured pulse based parabolic index multimode fiber