Optimizing laser intensity by adjusting some of parameters using pump-probe technology

The present study optimize the impact of full width at half maximum (FWHM) and laser pulse width (PW) on the laser intensity. This investigation entailed the assessment of a laser dye exhibiting nonlinear characteristics, which demonstrated an absorption spectrum aligned with the used wavelength. The optimizing employed a semiconductor laser operating at a precise wavelength of 657 nm. The laser has undergone many improvements, resulting in its conversion into a pulse-type laser. The pulse frequency of the laser was increased to a maximum value of 150 kHz, while the pulse width exhibited a range of variability ranging from 1 to 99%. The aforementioned modification was achieved by employing a pulse width modulation circuit that had been specifically constructed for this particular purpose. The empirical evidence presented in the study supports a correlation between FWHM and the pulse width (PW). Indeed, each increase in the FWHM implies a commensurate increase in the pulse width (PW). Study of the characteristics of lasers has revealed a positive correlation between the FWHM and the laser intensity. Based on the empirical data obtained, it is apparent that there exists an inverse relationship between the duration of the laser pulse and the intensity of the laser. The observed behaviors can be attributed to the inherent characteristics of the laser dye, which exhibit heightened nonlinear features with greater intensities. The augmentation of laser pulse strength leads to the expansion of the spectral range of the dye.