負の屈折率温度特性をもつ固体材料によるNd:YAGレーザーの熱レンズ補償 [in Japanese] Thermal Lens Compensation of Rod Laser System Inserting a Solid Element with Negative Temperature-Dependence Change of Refractive Index Property [in Japanese]
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- 吉田 英次 YOSHIDA Hidetsugu
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
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- 竹内 徳洋 TAKEUCHI Norihiro
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
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- 岡田 大 [他] OKADA Hajime
- 日本原子力研究開発機構 Japan Atomic Energy Agency
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- 藤田 尚徳 FUJITA Hisanori
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
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- 中塚 正大 NAKATSUKA Masahiro
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
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Author(s)
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- 吉田 英次 YOSHIDA Hidetsugu
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
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- 竹内 徳洋 TAKEUCHI Norihiro
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
-
- 岡田 大 [他] OKADA Hajime
- 日本原子力研究開発機構 Japan Atomic Energy Agency
-
- 藤田 尚徳 FUJITA Hisanori
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
-
- 中塚 正大 NAKATSUKA Masahiro
- 大阪大学 レーザーエネルギー学研究センター Institute of Laser Engineering, Osaka University
Abstract
We have successfully demonstrated the compensation of thermal lens effect in Nd: YAG laser rods regardless of pumping condition by inserting a solid-state self-adaptive CE (Compensating Element), having negative <I>dn/dT</I> property between two Nd: YAG rods. Several organic resins and a LiF crystal of higher negative <I>dn/dT</I> which have high damage threshold and low absorbance are very useful to compensate thermal effects in the amplifier. The results revealed that the use of several organic resins resulted in the complete reduction of the thermal lens effect by an order of magnitude. This compensation scheme is an ultimate method because of its dynamic compensation feature independent of the pumping power level.
Journal
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- The Review of Laser Engineering
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The Review of Laser Engineering 36(9), 573-578, 2008-09-15
The Laser Society of Japan
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