Fiber Polarization Controllers FT-T56-N

LBTEK's mechanical three-loop polarization control is based on the principle of birefringence induced in optical fibers under external force. The three loops function equivalently as λ/4, λ/2, and λ/4 waveplates respectively. By adjusting the rotation angles of these three loops in coordination, the polarization state of incident light can be transformed into any desired polarization state. The retardation effect caused by birefringence is primarily determined by the fiber cladding radius, fiber loop radius, and the wavelength of the input light. The number of fiber loops required for different wavelengths can be calculated using the formula provided in the technical specifications. LBTEK offers two options for polarization controllers: empty polarization controllers and pre-installed fiber polarization controllers. The polarization controllers are mainly designed for use with fibers protected by Ø900 µm sleeves.

• Three-Rring Type
• Provides Various Ring Diameter Specifications
• Offers Empty Polarization Controllers and Pre-Installed Fiber Optic Controllers