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11.
Efficient Dual-LBO Second-Harmonic Generation by Using a Polarization Modulation Configuration 下载免费PDF全文
We analyse the relationship of conversion efficiency with the inter-crystal phase shift by the heuristic theory and propose a novel configuration of two cascaded nonlinear crystals for the second-harmonic generation with the polarization modulation. With this configuration, 70% external doubling efficiency is obtained, which is, to the best of our knowledge, the highest conversion efficiency with LBO crystal externM frequency doubling. This configuration provides a simple and effective method to improve the second harmonic conversion efficiency. 相似文献