Abstract Second-order (χ (2)) optical nonlinearity is one of the most common mechanisms for
modulating and generating coherent light in photonic devices. Due to strong photon …

A breakthrough technology, on-chip frequency comb sources offer broadband combs while
being compact, energy-efficient, and cost-effective solutions for various applications from …

This article provides an overview of laser-based absorption spectroscopy applications and
discusses the parameter space and requirements of laser systems for each of these …

Optical microcomb underpins a wide range of applications from communication, metrology,
to sensing. Although extensively explored in recent years, challenges remain in key aspects …

Wideband radio frequency (RF) channelization is essential for the reception and detection of
cross-band RF signals in various applications, including communications, radar, and …

Dual-comb spectroscopy has enabled new approaches for optical precision measurements.
Although Doppler-limited resolution can be achieved over long-time scales across a large …

Photonic integrated circuits utilize planar waveguides to process light on a chip,
encompassing functions like generation, routing, modulation, and detection. Similar to the …

Semiconductor mode-locked optical frequency comb (ML-OFC) sources with extremely high
repetition rates are central to many high-frequency applications, such as dense wavelength …

We propose and demonstrate a technique based on self-injection locking to significantly
enhance the performance of a quantum-dash comb laser, implemented via a hybrid …

The combination of speed and resolution is a fundamental figure of merit for Fourier
transform spectroscopy. Here, we show that, by combining a fast rotational delay line with a …