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从理论和实验上证明了液晶调谐滤光片可用于复色激光器中提取所需要的谱线 ,从而避免多级双折射滤光片的使用。对Ar+激光器中最强的两条谱线 488nm蓝光和 5 14 5nm绿光进行测试 ,用较低的调谐电压即可提取所需要的谱线 ,当两谱线经过以E70为材料的液晶调谐滤光片时 ,液晶盒上所加电压为 1 19V ,透过的基本是 488nm谱线 ;电压为 1 30V透过的是 5 14 5nm谱线。
It is proved theoretically and experimentally that the liquid crystal tunable filter can be used to extract the required spectrum in the complex color laser to avoid the use of multi-stage birefringent filter. The strongest two of the Ar + lasers, 488nm blue and 5145nm green, were tested with a lower tuning voltage to extract the desired spectra. When the two spectra passed through a liquid crystal tuning filter of E70 Light film, the voltage applied to the cell is 19V, the basic transmission through the 488nm line; the voltage of 130V through the 5145nm line.