The generation of sub‐optical‐cycle, carrier–envelope phase‐stable light pulses is one of
the frontiers of ultrafast optics. The two key ingredients for sub‐cycle pulse generation are …

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 …

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

In this Letter we report on an all-optical-fiber approach to the generation of ultra-low-noise
microwave signals. We make use of two erbium fiber mode-locked lasers phase locked to a …

Ultra-precise timing has become a prerequisite for many modern large-scale scientific
instruments, and timing precision is a crucial enabling factor to achieve the ultimate goals of …

We review our recent progress toward attosecond‐precision ultrafast photonics based on
ultra‐low timing jitter optical pulse trains from mode‐locked lasers. In femtosecond mode …

We demonstrate that balanced optical-microwave phase detectors (BOMPD) are capable of
optical-RF synchronization with sub-femtosecond residual timing jitter for large-scale timing …

In this article, we develop the theory of a special type of optoelectronic phase-locked loop
(PLL). The output signal of this type of PLL is in the electrical domain and its reference …

An experimental platform using X-ray free-electron laser (XFEL) pulses with high-intensity
optical laser pulses is open for early users' experiments at the SACLA XFEL facility after …

A low-drift optoelectronic oscillator (OEO) is developed and experimentally shown. In the
proposed OEO, a fiber Sagnac interferometer, including an optical phase modulator (PM) …