Did You know?
The first optical parametric oscillator was demonstrated by Joseph Giordmaine and Bob Miller in 1965, five years after the invention of the laser, at Bell Labs. Wavelength tunability and the possibility to attain wavelengths in infrared, far-infrared and terahertz region are the attributes which make OPOs so fascinating. Optical parametric oscillators are used as coherent light sources for various scientific applications, such as generating squeezed light for research in the area of quantum physics and spectroscopy. OPOs can be singly-resonant and pumped with an actively Q-switched Nd:YAG laser.