In this letter, a new strategy is demonstrated by a distributed 2D multi-single emitters (MSE) laser diode array based on spectral beam combining (SBC) and beam shaping system (BSS). For the MSE-SBC, the maximum O-O efficiency is 83.82%, which leads to an output power of 86.5 W and the spectral span is 4.64 nm under continuous wave operation at a current of 8 A. M 2 of 2.96×12.99 in vertical and horizontal directions are obtained at 8 A after the BSS, which can be coupled into a 105 μm, 0.22 NA fiber efficiently. Such technology is perspective to achieve high brightness and efficiency of laser diode fiber coupling.
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Hu et al. (2024) studied this question.
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