An efficient continuous wave (CW) laser-diode-pumped Nd-doped (CNGG) laser operating at is demonstrated by using a simple linear cavity for the first time to our knowledge. Output power up to is obtained, corresponding to a slope efficiency of 7.1% and an optical-to-optical efficiency of 5.7%. The laser operates with the fundamental transverse mode when the output power is as high as . This laser provides a potential light source for differential absorption lidar in water vapor detection.
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