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在ＮａＣｌ晶体中掺入ＯＨ－离子可以有效地提高心的稳定性．采用四镜折迭Ｘ型像散补偿腔，获得了峰值波长１．５７μｍ、输出功率＞２５０ｍＷ的低温宽带ＮａＣｌ（ＯＨ－）：色心激光．本文着重讨论ＯＨ－对心的稳定作用和影响色心激光振荡的各种因素．
Incorporation of OH- ions in the NaCl crystal effectively improves the stability of the heart. The wideband NaCl (OH-): chromatic center laser with a peak wavelength of 1.57μm and an output power> 250mW was obtained by using a four-lens folded X-shaped astigmatism compensation chamber. This article focuses on the OH-stability of the heart and the various factors that affect the color center laser oscillation.