LAMINATE PAPER HAVING INCREASED PH STABILITY AND METHOD OF MAKING SAME

摘要

A method for producing low-noise laser output (195) at various wavelengths and/or in various operation modes in a monolithic microchip laser (100) comprises schemes of generating two fundamental beams (165, 175) in separate cavities, precise intrasavity beam combination based on the walk-off effect in birefringent crystal (180) , and wavelength conversion in nonlinear optical crystals (190) . The fundamental beams (165, 175) are produced from light sources (160, 170) selected upon the desired wavelengths, polarizations, and other features related to the laser output (195) . Low- noise laser devices operated in SLM or with spectra of flat-top or desired bandwidths are constructed according to the method. High-volume fabrication is feasible. Apparatus of compact size and efficient frequency conversion is demonstrated with various configurations including those for generating low-noise 491 nm laser, as a replacement of Argon ion laser.