We report a wavelength-tunable multi-point pump scheme of the semiconductor disk lasers(SDLs).By designing an external cavity of SDL with an intra-cavity transmission grating,multiple pump gain regions share the same ...We report a wavelength-tunable multi-point pump scheme of the semiconductor disk lasers(SDLs).By designing an external cavity of SDL with an intra-cavity transmission grating,multiple pump gain regions share the same resonator.The effect of the intra-cavity grating on the output laser power,wavelength,and beam quality was investigated.The emission wavelength could be tuned over a bandwidth of~18 nm.With multi-point pumping,we achieve the laser output power with almost no loss,and further improvement is limited by the thermal effect.The changes in the beam are due to the mode selectivity by the intra-cavity grating.展开更多
基金supported by the National Natural Science Foundation of China(Nos.61790584 and 62025506)the funding from TRUMPF,and K.C.Wong Education Foundation。
文摘We report a wavelength-tunable multi-point pump scheme of the semiconductor disk lasers(SDLs).By designing an external cavity of SDL with an intra-cavity transmission grating,multiple pump gain regions share the same resonator.The effect of the intra-cavity grating on the output laser power,wavelength,and beam quality was investigated.The emission wavelength could be tuned over a bandwidth of~18 nm.With multi-point pumping,we achieve the laser output power with almost no loss,and further improvement is limited by the thermal effect.The changes in the beam are due to the mode selectivity by the intra-cavity grating.
