The Brimrose all fiber optic electronically controllable optical modulator utilizes a unique proprietary technology. Our fiber optic modulators are rugged and compact. This product is electronically programmable using a mocroprocessor connected to our RF driver unit. Also the Fiber Optic Modulators can be computer controlled via RS232 or TCP/IP ethernet controllable for inline field applications. The component is housed in a compact, environmentally stable package that offers superior resistance to humidity and temperature and is suitable for mounting within an amplifier module.