Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2018,（5）
• 页码范围: 78-81
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201816.053201

摘要

In this Letter, we experimentally explore the pulse-contrast degradation caused by surface reflection in optical parameter chirped-pulse amplification. Different pump-to-signal conversion efficiencies and post-pulses with different intensities are obtained by changing the seed-pulse or pump-pulse energy and inserting etalons with different reflection coefficients, respectively. The contrast measurements show that the generated first pre-pulse intensity is proportional to the product of the surface reflection intensity ratio and the square of the pump-to-signal conversion efficiency.