Experimental study of the optical fiber characteristics by digital hologram

Abstract

The characteristics of optical fiber are quite important for improving the performance of optical fiber communication and sensor systems. Based on the Mach-Zehnder interferometer, a new measuring method is proposed and the digital holograms between the single mode fibers (SMFs) and specialty double-cladding (DC) fibers are analyzed. The experimental results show that the fringe density can be changed under the conditions of coaxial and off-axial interferences. Therefore it can be used to analyze the optical fiber characteristics including refractive index distribution, fiber modes, phase difference, etc.

Keywords

Interference Pattern / Single Mode Fiber / Fiber Mode / Interference Condition / Optoelectronic Letter

References

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