The lithium niobate intensity modulator is a widely used optoelectronic device in applications such as fiber optic sensing, coherent communication, and RoF (Radio over Fiber) systems. Due to the structure of the modulator and the properties of the lithium niobate material, the working state of the LiNbO3 intensity modulator changes with the environment. To use the bulk LiNbO3 or TFLN intensity modulator correctly, it is usually necessary to apply an appropriate DC bias voltage to the modulator and continuously adjust this voltage based on its working state to maintain proper functionality over extended periods, free from external interference.

 

Plugtech's MBC series controller is a high-precision bias voltage controller specifically designed for the Electro-Optic (EO) type LiNbO3 or TFLN intensity modulator. It features a small size, ease of use, and excellent compatibility. The MBC series products adopt fully digital control methods and advanced control algorithms to enable fast automatic calculation and adjustment of the modulator's DC electrode bias voltage, allowing users to easily set up modulation systems.

 

In contrast, the TFLN series controller is specially designed for the Thermo-Optic (TO) type TFLN modulators. It also features compact size, excellent compatibility, and flexible integration. With different output range model options, users can easily set up the different brands of TFLN modulators with heaters. Through the special algorithm design, the controller can lock the MZ modulator to the state with maximum extinction ratio or linear region state, or lock the IQ modulator to SSB/QAM/QPSK state.