Low noise optically pumped laser structures utilizing dispersion elements

摘要

A refractive optics-based dispersion control structure for a low-noise solid state laser standing-wave resonator has at least one dispersive element, a gain medium, and a frequency doubling element disposed in the resonant beam path. The dispersive element provides geometric-based laser bandwidth control that minimizes the laser output power noise. The dispersive element in certain embodiments may be a prism. The dispersive element in certain other embodiments may be integrally formed with the gain medium. Numerous different architectures using these elements are disclosed.

主权项

1. An optically pumped solid-state laser system, comprising:
a first reflective element forming a first termination of a resonant beam path; a second reflective element forming a second termination of said resonant beam path; a gain medium element disposed within said resonant beam path between said first reflective element and said second reflective element; a frequency doubling element disposed within said resonant beam path between said first reflective element and said second reflective element; and a dispersion control element disposed within said resonant beam path between said first reflective element and said second reflective element, said dispersion control element having a surface which is highly reflective to a selected component of light, to separate said selected component of light from a resonant light beam in said resonant beam path and provide said separated component of light as an output of said laser system; wherein a source beam may enter said gain medium element to generate a light output in said resonant beam path, said light output may be frequency doubled by said frequency doubling element, and be frequency limited by said dispersion control element to form said resonant light beam prior to output by said laser system.