【摘要】：為了對抽運源的穩(wěn)頻技術(shù)做出對比和選擇,采用內(nèi)調(diào)制技術(shù)和相位調(diào)制光外差技術(shù),以周期性極化KTP晶體作為非線性晶體,實現(xiàn)了894.6nm連續(xù)光兩鏡駐波倍頻腔的穩(wěn)頻運轉(zhuǎn)。結(jié)果表明,在不同注入光功率下,用這兩種方法鎖定倍頻腔后獲得的藍光功率基本相同;在最大注入光功率為350m W時,獲得178m W的447.3nm藍光,相應(yīng)的轉(zhuǎn)化效率為50.8%;在最大注入光功率下,利用內(nèi)調(diào)制技術(shù)和相位調(diào)制光外差穩(wěn)頻技術(shù)獲得的藍光在2h內(nèi)功率起伏分別為3.4%和2.3%。該研究對獲得穩(wěn)定輸出的447.3nm藍光用來制備銫原子D1線的非經(jīng)典光的實驗是有幫助的。
[Abstract]:In order to compare and select the frequency stabilization technique of pump source, the frequency stabilization of 894.6nm continuous optical two-mirror standing wave doubling cavity is realized by using internal modulation technique and phase-modulated optical heterodyne technique, using periodically polarized KTP crystal as nonlinear crystal. The results show that the blue light power obtained by the two methods is basically the same under different injection optical power, and 178MW 447.3nm blue light is obtained when the maximum injected optical power is 350 MW, and the corresponding conversion efficiency is 50.8 MW. Under the maximum injection power, the power fluctuation of blue light obtained by internal modulation technique and phase modulated heterodyne frequency stabilization technique is 3.4% and 2.3% within 2 hours, respectively. This study is helpful to obtain stable output 447.3nm blue light used to prepare non classical light of cesium D1 line.
【作者單位】： 山西大學光電研究所量子光學與光量子器件國家重點實驗室;
【基金】：國家自然科學基金資助項目(11574188;11274210);國家自然科學基金創(chuàng)新研究群體科學基金資助項目(61121064) 國家九七三重點基礎(chǔ)研究發(fā)展計劃資助項目(2010CB923102)
【分類號】：O43
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本文編號：2340592