Optical parametric oscillators (OPOs) have been widely applied in areas ranging from spectroscopy photonics to quantum information. While conventional OPOs typically suffer from weak nonlinearity ...

A newly demonstrated device could lead to the creation of entangled pairs of phonons. Optical parametric oscillators (OPOs) are indispensable in quantum optics, generating entangled photons for ...

Widely tunable mid- and long-wave infrared (8–12 μm) lasers are located in the atmospheric window range and the human eye safety range. They are widely applied in the field of Lidar. A research team ...

A widely tunable and high resolution mid-infrared radiation source operating in the 3–5 µm region has been applied to numerous frontier applications, including remote sensing, molecular spectroscopy, ...

Optical parametric oscillators (OPO) use parametric amplification in nonlinear crystals to produce optical gain. The output of an OPO can be varied over wide spectral ranges. The device consists of an ...

Nonlinear optical frequency conversion is an important enabling technology for a variety of applications, especially laser spectroscopy. Molecular spectroscopy experiments typically require light in ...

It is hard to imagine a time without active amplification. However, if you go back far enough, radio communications started in an era where generating RF required something like a spark gap and ...