Compact high-power sources of nanosecond laser pulses (940 nm) based on "semiconductor laser-thyristor switch" vertical stacks
Slipchenko S.O.1, Podoskin A.A.1, Shushkanov I.V.1, Rizaev A.E.1, Kondratov M.I.1, Rudova N.A.1, Strelets V.A.1, Shuvalova N.V.1, Grishin A.E.1, Bagaev T.A.2, Ladugin M.A2, Marmalyuk A.A.2, Simakov V.A.2, Pikhtin N.A1
1Ioffe Institute, St. Petersburg, Russia
2“Polyus” Research Institute of M.F. Stelmakh Joint Stock Company, Moscow, Russia
Email: SergHPL@mail.ioffe.ru
High-power ns-duration laser pulse sources based on vertical stacks of "semiconductor laser-thyristor switches" emitting at the wavelength of 940 nm have been developed and studied. The possibility to increase the peak power to 45.6 W and reduce pulsewidth to 2.25 ns by using a 400 μm-wide monolithic emitting aperture design has been demonstrated. For the developed sources, the lasing turn-on non-uniformity along the emitting aperture has been reduced to 50-80 ps. Keywords: current switch, semiconductor laser, thyristor, vertical stack.
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