Broadex Technologies offers PLC based modules with both the Variable Optical Attenuator (VOA) and Multiplexer (MUX) functions, known as VOA Multiplexer devices. High performance VOA arrays are integrated with AWG devices to produce low loss VMUX devices with high attenuation accuracy and tuning range, and low polarization dependency. The VOA functionality allows the module to pre equalize the optical power in all channels individually before amplification.

VMUX modules are designed for use in DWDM systems, reconfigurable optical add/drop multiplexer (ROADM) systems, and metropolitan area networks (MAN)