Frequency-doubled Laser System at 780 nm for Pulsed Vapor-cell Clocks

We present the development status of a low-noise pulsed laser source suitable for high-performing vapor-cell clocks. The laser is based on a 1560 nm source, frequency doubled to be resonant with the D-2 line of rubidium at 780 nm. The laser system is able to deliver laser pulses with programmable amplitude and length. The intensity noise of the laser during the pulses duration is also actively reduced by means of the same fast analog control loop generating the pulses. The pulses characteristics are shown to be compatible with the specifications of a high-performing Pulsed Optically Pumped (POP) clock.