Perhaps the nonlinear effects in the arc act as a Parametric oscillator / amplifer which amplifies any small motions of the broken filament and causes the filament to vibrate at a natural resonance.
22.
Most applications could be served by larger solid-state lasers or optical parametric oscillators, but the low cost of mass-produced diode lasers makes them essential for mass-market applications.
23.
The optical parametric amplifier has a wider bandwidth than a-amplifier, which in turn has a wider bandwidth than an optical parametric oscillator because of white-light generation even one octave wide.
24.
It is also frequently used as an optical parametric oscillator for birefringent walk-off between the pump signal and idler beams present in this material limit its use as an optical parametric oscillator for very low power applications.
25.
It is also frequently used as an optical parametric oscillator for birefringent walk-off between the pump signal and idler beams present in this material limit its use as an optical parametric oscillator for very low power applications.
26.
A "'parametric oscillator "'is a driven harmonic oscillator in which the oscillations are driven by varying some parameter of the system at some frequency, typically different from the natural frequency of the oscillator.
27.
Starting in 2005, Radiant Light has been commercializing optical parametric oscillators and frequency-conversion devices covering all spectral regions, from the ultraviolet to the mid-infrared, and all temporal domains, from the continuous-wave to ultrafast femtosecond timescales.
28.
In the continuous wave regime, stable half-harmonic generation in an optical parametric oscillator was experimentally demonstrated in 1990, and in the mid-infrared frequency combs using near-infrared frequency combs, and a conversion efficiency of ~ 64 % is experimentally demonstrated.
29.
He has conducted research and taught classes in lasers and nonlinear optics at Stanford University since 1969 . He has made numerous contributions to laser science and technology including the demonstration of the first tunable visible parametric oscillator, the development of the Q-switched unstable resonator Nd : YAG laser, remote sensing using tunable infrared sources and precision spectroscopy using Coherent Anti Stokes Raman Scattering ( CARS ).
30.
Such mode-locked lasers are a most versatile tool for researching processes occurring on extremely short time scales ( known as femtosecond physics, femtosecond chemistry and ultrafast science ), for maximizing the effect of nonlinearity in optical materials ( e . g . in second-harmonic generation, parametric down-conversion, optical parametric oscillators and the like ) due to the large peak power, and in ablation applications.
