Octave-spanning Ti:sapphire laser with a repetition rate >1 GHz for optical frequency measurements and comparisons

We demonstrate a self-referenced, octave-spanning, mode-locked Ti:sapphire laser with a scalable repetition rate $(550\mathrm{MHz}–1.35\mathrm{GHz})$. We use the frequency comb output of the laser, without additional broadening in optical fiber, for simultaneous measurements against atomic optical standards at 534, 578, 563, and $657\mathrm{nm}$ and to stabilize the laser offset frequency.