Strontium Optical Lattice Clock with All Semiconductor Sources

We report on our progress toward the realization of an optical frequency standard referenced to strontium intercombination lines. Our current setup allows the production of ultracold Sr atoms in hundreds of ms. For high resolution spectroscopy of ¹S₀-³P₀ doubly forbidden transition we have also prepared a 698 nm clock laser stabilized on high finesse symmetrically suspended cavity and a high power 813 nm light source for the optical lattice trap at the magic wavelength. All the laser source employed are based on semiconductor device. This opens the way to the realization of compact, reliable and eventually transportable optical frequency standards.