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自锁模Cr⁴⁺∶YAG激光器的色散补偿研究

Study on Dispersion Compensation of the Self-starting Mode-locked Cr⁴⁺∶YAG Laser

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【Author】 Song Lijun 1, Pei Weihua 1, Song Yanrong 1,2 , Zhou Guosheng 1 1 College of Physics & Electronics Engineering ,Shanxi University,Taiyuan 030006 2 College of Precision Instrument & Optoelectronic Information Engineering ,Tianjin University,Tianjin 300072

【机构】山西大学物理电子工程学院；山西大学物理电子工程学院山西太原030006；山西太原030006；山西太原030006；天津大学精密仪器与光电子工程学院超快激光研究室；天津300072；

【摘要】从棱镜对补偿色散的原理出发 ,介绍了Cr4 +∶YAG锁模激光器中色散补偿的特点 ,发现熔融石英作为色散补偿元件 ,不仅可以完全补偿二阶色散 ,而且三阶色散也得到了一定的补偿 ,并得到了脉冲宽度最小为 6 5fs ,中心波长为 15 2 0nm ,重复频率为 12 0MHz的脉冲序列更多还原

【Abstract】 Based on the prisms dispersion compensation theory,the characters of the dispersion compensation in the self-starting mode-locked Cr 4+ ∶KG-2/3YAG laser was analysed,and it is found that not only the second-order dispersion was completely compensated,but also some of the third-order dispersion was compensated.The shortest pulse width was 65 fs更多还原