Raman gains of ADP and KDP crystals

In this paper, the Raman gain coefficients of ammonium dihydrogen phosphate （ADP） and potassium dihydrogen phosphate （KDP） crystals are measured. By using a pump source of a 30-ps, 532-nm laser, the gain coefficients of ADP and KDP are 1.22 cm/GW, and 0.91 cm/GW, respectively. While for a 20-ps, 355...

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Published inChinese physics B Vol. 24; no. 4; pp. 227 - 230
Main Author 周海亮 张清华 王波 许心光 王正平 孙洵 张芳 张立松 刘宝安 柴向旭
Format Journal Article
LanguageEnglish
Published 01.04.2015
Subjects
ADP
Ammonium dihydrogen phosphate
Conversion
Crystals
Gain
KDP crystals
KDP晶体
Laser damage
Lasers
Pumps
三次谐波产生
增益系数
拉曼增益
纳米激光器
非临界相位匹配
非线性光学系数
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Summary:In this paper, the Raman gain coefficients of ammonium dihydrogen phosphate （ADP） and potassium dihydrogen phosphate （KDP） crystals are measured. By using a pump source of a 30-ps, 532-nm laser, the gain coefficients of ADP and KDP are 1.22 cm/GW, and 0.91 cm/GW, respectively. While for a 20-ps, 355-nm pump laser, the gain coefficients of these two crystals are similar, which are 1.95 cm/GW for ADP and 1.86 for KDP. The present results indicate that for ultra-violet frequency conversion, the problem of stimulated Raman scattering for ADP crystal will not be more serious than that for KDP crystal. Considering other advantages such the larger nonlinear optical coefficient, higher laser damage threshold, and lower noncritical phase-matching temperature, it can be anticipated that ADP will be a powerful competitor to KDP in large aperture, high energy third-harmonic generation or fourth-harmonic generation applications.
Bibliography:ADP, KDP, stimulated Raman scattering, gain coefficient
11-5639/O4
In this paper, the Raman gain coefficients of ammonium dihydrogen phosphate （ADP） and potassium dihydrogen phosphate （KDP） crystals are measured. By using a pump source of a 30-ps, 532-nm laser, the gain coefficients of ADP and KDP are 1.22 cm/GW, and 0.91 cm/GW, respectively. While for a 20-ps, 355-nm pump laser, the gain coefficients of these two crystals are similar, which are 1.95 cm/GW for ADP and 1.86 for KDP. The present results indicate that for ultra-violet frequency conversion, the problem of stimulated Raman scattering for ADP crystal will not be more serious than that for KDP crystal. Considering other advantages such the larger nonlinear optical coefficient, higher laser damage threshold, and lower noncritical phase-matching temperature, it can be anticipated that ADP will be a powerful competitor to KDP in large aperture, high energy third-harmonic generation or fourth-harmonic generation applications.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/4/044206