Virtual Point Source Pumped cw Nd:YAG Laser with 81 W Output from Linear Cavity and 22 W Output from Ring Cavity

Abstract

This paper reports an experiment made to test the possibility of achieving spatial resolution in the observation of a cylindrical plasma utilizing a high quality objective, avoiding so the classical Abel inversion. The result shows that 90 % of the light is issued from a zone covering one fourth of the radius of the cylinder for the 5 770 Hg line emitted in a lamp. This result which may be acceptable for many experiments is not so good that one could expect from simplified calculations also reported. RESUME : Cet article presente une experience faite pour tester la possibilite d'obtenir une resolution spatiale dans I'observation d'un plasma cylindrique, a l'aide d'un objectif de haute qualite, ce qui permettrait d'eviter la classique inversion d'Abel. Le resultat montre que 90 0 4 de la lumiere provient d'une zone recouvrant le quart du rayon du cylindre pour la raie 5 770 A Hg emise par une lampe. Ce resultat, qui peut stre acceptable pour de nombreuses experiences, ne rejoint pas les previsions de calculs simplifib qui sont aussi presentes.

Side-Pumped Nd3+:Y3Al5O12 Composite Ceramic Laser

“…where P in is the input pumping power and M or M 0 is a coefficient. 13) To estimate the degree of the thermal lens effect, the forcal length of both rods was measured. Figure 5 shows 1= f vs input pumping power for the composite and noncomposite rods.…”