As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

A narrow-linewidth laser with excellent temporal coherence is an important light source for
microphysics, space detection, and high-precision measurement. An ultranarrow-linewidth …

Driven by narrow-linewidth bench-top lasers, coherent optical systems spanning optical
communications, metrology and sensing provide unrivalled performance. To transfer these …

High quality-factor (Q) optical resonators are a key component for ultra-narrow linewidth
lasers, frequency stabilization, precision spectroscopy and quantum applications. Integration …

Femtosecond laser-based generation of radio frequency signals has produced astonishing
improvements in achievable spectral purity, one of the basic features characterizing the …

Optical frequency division via optical frequency combs has enabled a leap in microwave
metrology, leading to noise performance never explored before. Extending this method to …

Frequency combs are having a broad impact on science and technology because they
provide a way to coherently link radio/microwave-rate electrical signals with optical-rate …

Lasers with hertz linewidths at time scales of seconds are critical for metrology, timekeeping,
and manipulation of quantum systems. Such frequency stability relies on bulk-optic lasers …

Cold atoms are important for precision atomic applications including timekeeping and
sensing. The 3D magneto-optical trap (3D-MOT), used to produce cold atoms, will benefit …

We self-injection-lock a diode laser to a 1.41 m long, ultra-high Q integrated resonator. The
hybrid integrated laser reaches a frequency noise floor of 0.006 Hz^ 2/Hz at 4 MHz offset …