POLARIMETERS :: APPLICATIONS :: Fiber Optic Measurement

When an optical fiber is bent or twisted, mechanical stresses are induced in the fiber. These stresses will cause the polarization state of the light traveling through the fiber to change (e.g. magnetic field, temperature, etc.). Changes in polarization state can also occur if the environment of the fiber itself changes. This can cause undesirable effects in experiments and applications that are dependent upon a constant output polarization from the fiber.

The picture above shows the changing polarization states of 1550 nm laser light coming out of a fiber.  When the fiber is untouched, the polarization states remain constant.  When the fiber is bent, the Q, U, and V values all change as well as the position on the Poincare sphere.

The Dual PEM Stokes Polarimeter can measure or monitor the polarization state of light coming out of a fiber. Data archiving features allow the Polarimeter to monitor the complete polarization state of the light to a high degree of sensitivity.

SUGGESTED SYSTEMS
NIR Fiber Polarimeter
Mid IR Wavelength Polarimeter
Near IR Wavelength Polarimeter

Fiber Adapter
Fiber Softwar Options