Optical frequency combs were developed nearly two decades ago to support the world's
most precise atomic clocks. Acting as precision optical synthesizers, frequency combs …

We review the most recent progress in ultralow-noise mode-locked fiber lasers and fiber-
based frequency-comb sources. With the rapid progress in theory, measurement, and …

The series of precisely spaced, sharp spectral lines that form an optical frequency comb is
enabling unprecedented measurement capabilities and new applications in a wide range of …

In the past decade we have witnessed remarkable advances associated with the frequency
stabilization of the comb present in the output of a mode-locked femtosecond laser. While …

There has been increased interest in the use and manipulation of optical fields to address
the challenging problems that have traditionally been approached with microwave …

Nobel Lecture: Passion for precision* Page 1 Nobel Lecture: Passion for precision*
Theodor W. Hänsch† Max-Planck Institute of Quantum Optics, Garching, Germany and …

Low-phase-noise microwave oscillators are important to a wide range of subjects, including
communications, radar and metrology. Photonic-based microwave-wave sources now …

The ability to generate lower-noise microwaves has greatly advanced high-speed, high-
precision scientific and engineering fields. Microcombs have high potential for generating …

Femtosecond mode-locked lasers have revolutionized many fields of science and
engineering,,,. Because of their ultralow noise, it has been anticipated that mode-locked …

Three distinct techniques exist for distributing an ultrastable frequency reference over optical
fibers. For the distribution of a microwave frequency reference, an amplitude-modulated …