Experimental Study of Optical Nonlinearities in a Broadband Semiconductor Saturable Absorber Mirror

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2005,（1）
• 页码范围: 40-42
• 页数: 3页
• 语种: 英文

摘要

The negative nonlinear index of a semiconductor saturable absorber mirror (SESAM) was investigated by using the reflection Z-scan technique. This is an experimental demonstration, for the first time to our knowledge, thatthe SESAM possesses comparable negative nonlinear index n2 = -2.35 × 10-10 esu, which may have importantimplications in design and alignment of Kerr-lens mode-locking based on the self-focusing effect.