Abstract
Lasers operating in the Ince-Gaussian (IG) mode have potential applications for optical manipulation of microparticles and formation of optical vortices, as well as for optical trapping and optical tweezers. Versatile, self--switched, high-peak-power, high-repetition-rate Cr, Nd : YAG microchip lasers operating in the IG mode are implemented under tilted, tightly focused laser-diode pumping. An average output power of over is obtained at an absorbed pump power of . The highest optical-to-optical efficiency of 33.2 % is achieved at an absorbed pump power of . Laser pulses with a pulse energy of , pulse width of and peak power of over are obtained. A repetition rate up to is reached at an absorbed pump power of . Highly efficient, versatile, IG-mode lasers with a high repetition rate and a high peak power ensure a better flexibility in particle manipulation and optical trapping.
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