In this article, the history of development of ultrashort laser technology in China and abroad is introduced as well as the manufacture and the application in solid-state lasers of many kinds of semiconductor saturable absorption mirrors (SESAMs) with different wavelengths. The several general technologies and application methods to make SESAMs are analyzed The three types of SESAMs at wavelength of 1.06 μτη made by metal organic vapor deposition (MOCVD) were studied The passive mode-locking of Nd:YAG laser with SESAM was realized. The pulse duration is 10 ps; Frequency is 150 MHz; Output power is above 100 mW.