Determination of a stimulated emission cross section gradient on the basis of the performance of a diode-end-pumped Nd:YVO₄laser

Abstract

A stimulated emission cross section gradient of an Nd:YVO4 laser at the 4F3/2–4I11/2 transition has been shown on the basis of an input–output characteristic. In this study, a diode-end-pumped Nd:YVO4 laser has been achieved for variation of the temperature over the range 15–35 °C. The stimulated cross section gradient revealed by this method is (−6.67 ± 0.28) × 10−21 cm2 °C−1, with an average change with respect to the reference for the stimulated emission cross section of (−0.486 ± 0.022)% °C−1. This is in good agreement with the result obtained by a spectroscopic method taking into account the error attributed during experimental work.

Stimulated emission cross section at various temperatures based on laser performance

“…However, temperature variation in the stimulated emission cross section was not considered in the study. Studies on stimulated emission cross section variation with temperature using the performance based method were done [3,17]. In these studies, the reference stimulated emission cross section at room temperature was required to calculate the cross section at other temperature values.…”

Effect of green laser irradiation on hydrogen production

“…A diode pumped solid-state laser [15] was employed as a source of visible light in the electrolysis. The laser operated in continuous mode (cw) with second harmonic generation at 532 nm.…”

Fiber Optic Displacement Sensor for Industrial Applications

“…The concentration of hydrocarbon was tested within the ranged of 0 to 20%. The refractive index of the hydrocarbon is measured using diode pumped solid state DPSS laser [19] and detail experiment have been described in other text [20]. Bundle Fiber optic displacement sensor using an intensity modulation technique [4,5] for the displacement measurement, which is based on comparing the transmitted light intensity against that of the reflected light to provide information on the displacement between the probe and the target.…”