This fiber optic modulator is a nanosecond speed, high dynamic range, high extinction ratio solution available from 750 to 1700 nm. The wavelength of your fiber intensity modulator can be chosen on the datasheet table. See our Tutorial : fiber modulator basics for more information on the alternative modulator technologies. This fiber optic modulator is based on our special high-speed SOA pulsed driver (Semiconductor Optical Amplifier) and delivers precision pulses which are generated internally by an on-board pulse generator, or on-demand from an external TTL signal.