A DFB laser-pumped rubidium atomic frequency standard

Affolderbach, Mileti, Droz

Minoru Hashimoto, Motoichi Ohtsu

Jiayao Huang, Y. Gu, X. H. Qi +5 more

We present our recently experimental results on a DFB laser diode pumped Rubidium atomic frequency standard. Our experiment was based on a homemade lamp-pumped Rubidium frequency standard with the discharge lamp assembly removed. In the experiment, we first locked a DFB laser diode to the87Rb cycling transition (5S1/2, F=2→5P3/2, F=3) by means of saturation absorption locking technique. After that, we optimized the parameters carefully related to the clock performance, such as temperature of the physical package, amplitude of the modulation signal for the laser locking. The preliminary short-term stability of our clock is measured 5.25×10−12τ−1/2(1s<τ<100s).

K. Chiba, T. Hashi

DONG TAI-QIAN

We use one DFB laser diode(780 nm) as the pumping source,which is based on a homemade traditional rubidium frequency standard with the discharge lamp assembly removed.The laser frequency is locked to the 87Rb cycling transition(52S1/2,F=2→52P3/2,F=3) by means of traditional saturation absorption locking technique and the microwave rubidium frequency standard locking loop is accomplished.The initial short-term stability of the rubidium clock is measured to be 3.7×10-12 τ-1/2(1~100 s).

Zhangyou Du