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Diploma thesis abstract

Spatial beam profile of picosecond laser at inhomogeneous pulsed-diode-pump

Romanov R.A., student of the 625th group

The diploma thesis is devoted to research the feasible ways to implement stable and effective operation of a longitudinally pulse-diode-pump picosecond laser at repetition rate tuning within 1 kHz. The model of a picosecond Nd:YAG laser resonator, taking into account the inhomogeneous gain distribution and aberrative thermal lens in active element, was suggested. In the context of this model the beam quality parameter M2 and the pulse energy of a picosecond laser output radiation with inhomogeneous pulsed-diode-pump at different laser resonator configurations and pump geometries were analyzed as functions of a repetition frequency of pump pulses. Optimization possibilities of a laser resonator configuration with longitudinally pulsed-diode-pump were found on the basis of the modeling results of the spatial and energy output radiation characteristics.

Scientific adviser Candidate of phys.-math. sciences Olenin A.N.