A　laser　diode　(LD)　corner-pumped　Nd∶YAG　electro-optical　Q-switched　laser　with　high　efficiency　and　high　stability　that　generates　a　1.06-　μm　pulse　laser　output　is　designed　and　experimentally　verified.　Amplified　spontaneous　emission　and　parasitic　oscillation　are　suppressed　by　using　a　low-doped　Nd∶YAG　crystal　as　a　gain　medium　and　a　bonding　Sm∶YAG　crystal　on　both　sides.　The　angular　pump　direct　pumping　method　is　used　to　increase　the　pump　absorption　optical　path　and　thus　increase　the　pump　absorption　efficiency　of　the　gain　crystal,　and　a　zig-zag　structure　is　used　to　improve　the　thermal　effect.　Under　the　conditions　of　a　pump　pulse　energy　of　383　mJ,　repetition　frequency　of　20　Hz,　and　pump　pulse　width　of　230　μs,　laser　output　with　a　single　pulse　energy　of　97.5　mJ　and　pulse　width　of　7　ns　is　obtained.　The　dynamic-to-static　ratio　of　the　output　energy　is　95.3%,　the　optical-to-optical　conversion　efficiency　is　25.43%,　the　beam　quality　factors　in　two　directions　are　M2x　=　4.31　and　M2y　=　4.67,　the　change　in　Q-switched　output　energy　within　140　s　is　less　than　2%,　and　the　energy　instability　of　three　consecutive　working　cycles　is　also　less　than　2%.　The　individual　output　energy　attenuations　are　1.59%　and　2.11%,　and　the　total　output　energy　attenuation　is　3.67%.　©　2025　Universitat　zu　Koln.　All　rights　reserved.