Scattering loss and efficiency of the multi-pass mini-slab Nd: YAG ceramic lasers

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2011,（2）
• 页码范围: 45-47
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201109.021402

摘要

Multi-pass mini-slab (MPMS) Nd:YAG ceramic lasers with a single-mode output of 38 W is examined corresponding to an optical conversion efficiency of 47%. Although several characteristics of various ceramic samples are almost similar, such as transmission, emission and absorption spectra, cross section, and thermal conductivity, their optical conversion efficiencies can vary from 5% to 40%. We present a simple technique to on-line measure the influence of scattering loss of ceramic on laser performance. This particular technique provides convenience and accuracy in pre-monitoring ceramic sample quality. Experimental results of the MPMS Nd:YAG ceramic laser agree with evaluations.