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中文摘要：
利用国产半导体可饱和吸收镜（SESAM），设计了不同的腔型结构，实现了平均功率5W单路输出，5W双路输出，输出透过率可调节的半导体可饱和吸收镜线型腔连续锁模（CWML）激光器，双向输出六镜环行腔连续锁模激光器等。将半导体可饱和吸收镜放在腔内的特殊位置，利用一种新的技术方法实现了锁模激光器的频率翻倍。利用由非线性晶体KTP和双色镜构成的非线性镜（NLM），实现了端面抽运Nd：YVO4激光器的4W锁模输出。
英文摘要：
With a homemade semiconductor saturable absorber mirror （SESAM）, different cavities have been designed to achieve mode-locking. Linear cavity continuous-wave mode-locking （CWML） lasers of single output beam with average power of 5 W, double output beams with average power of 5 W and adjustable output transmission have been presented. Bi-directional operation ring cavity passively continuous wave （CW） mode-locked laser end-pumped by a fiber coupled laser diode has been constructed. By placing the semiconductor absorber mirror in a special location, a new mode-locking technique for multiplying the pulse repetition rate of a picosecond passively mode-locking laser was successfully demonstrated. And 4 W mode-locking output of LD end-pumped Nd： YVO4 laser was achieved by using a nonlinear mirror, which is constituted by a combination of a KTP frequency-doubling crystal and a dichroic mirror with high reflectivity for the second harmonic and partial transmission for the fundamental.
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