A Novel Bias Angle Control System for LiNbO3 Photonic Sensor Using Wavelength Tuning

A novel bias angle control technique to improve the performances of lithium niobate photonic E-field sensor while not disturbing the measured electric field has been demonstrated. Using this technique, bias locking at linear position along the transfer function is achieved with better than 2.2 degrees accuracy. In addition, this bias control technique has been proven to be robust and simple to implement in field applications.