The Keysight Agilent 11896A Motorized Polarization Controller is designed to cover a wide wavelength range from 1250 nm to 1640 nm. Utilizing a motorized four-loop optical fiber design, it achieves complete coverage of the Poincaré sphere with extremely low optical insertion loss variation of ±0.002 dB. This high-stability performance makes it an essential instrument for polarization dependent loss (PDL) and gain measurements where power-sensitive accuracy is critical.
