T.M. Fortier

TL;DR: In this article, an optical frequency divider based on a 200 MHz repetition rate Er:fiber mode-locked laser that, when locked to a stable optical frequency reference, generates microwave signals with absolute phase noise that is equal to or better than cryogenic microwave oscillators was presented.

TL;DR: In this article, an erbium-fiber laser frequency comb was proposed to achieve a fractional optical measurement uncertainty below 1×10−19 and fractional frequency instabilities less than 3×10 −18 at 1 s and 1× 10−19 at 1000 s.

TL;DR: In this article, an optical-electronic approach to generate microwave signals with high spectral purity was presented. And they demonstrated 10 GHz signals with an absolute timing jitter for a single hybrid oscillator of 420 attoseconds (1Hz - 5 GHz).

TL;DR: In this paper, the authors construct a lattice enhancement cavity that exaggerates the light shifts and observe an atomic temperature that is proportional to the optical trap depth, fundamentally altering the scaling of trap-induced light shift and simplifying their parametrization.

TL;DR: In this paper, the carrier-envelope phase of a Ti-sapphire laser was stabilised with phase coherence of at least 326 s, measurement time limited, and the conversion of amplitude noise to phase noise in the microstructured fiber, which is used to obtain an octave spanning spectrum, was measured.