Description

The characterization of single mode and multi mode fiber can be performed by this experiment setup. The set up contains optical rail & carriers system for mounting & adjusting optical components required for experiments. Laser diode used as a source of light & light coupled to fiber by using objective lens on fiber coupled setup. The coupling efficiency monitor with photo detector detecting the light coming out from end of fiber.  The output ends is hold by mount and detector hold on translation stage.

This setup helps to understand concept of numerical aperture, coupling of light and bending loss etc. Numerical aperture can be calculated by output light of optical fiber using photo detector or white screen mounted on translation stage. All components of setup constructed by corrosion resistant materials like stainless steel and aluminum alloy.

Experiment Performed

• Numerical aperture measurement of multi-mode fiber.
• Measurement of bending loss in multi-mode fiber.
• Numerical aperture measurement of single mode fiber.
• Calculation of normalized frequency or V-number of single mode fiber.
• Calculation of mode field diameter of single mode fiber.

Feature

• Precision kinematic mounts for optical components
• High precision laser coupler to fiber
• Assembly of setup is very easy