干扰吸收峰影响下TDLAS温度测量方法研究

固体飞秒激光器以其体积小、成本低、使用寿命长、稳定性高、技术较为成熟等特点，受到市场的广泛青睐。重复频率是飞秒激光器的一个重要参数，在实际应用中，高重复频率能带来高效率、高精度等诸多重要优势。本文介绍了SESAM锁模、KLM锁模、高次谐波锁模等常用的GHz固体飞秒激光器锁模技术及发展情况，阐述了GHz飞秒光源在激光加工、距离测量、光谱测量等应用场景中突出的性能优势，并对GHz重复频率固体飞秒激光技术的发展方向进行了预测，为推动GHz重复频率固体激光器技术的完善与提升提供借鉴。

Method of TDLAS temperature measurement under influence of interference absorption peak

Solid?state femtosecond lasers are widely favored by the market due to their small size, low cost, long service life, high stability, and relatively mature technology. Repetition frequency is an important parameter of femtosecond lasers. In practical applica?tions, high repetition frequency can bring many important advantages such as high efficiency and high precision. This paper introduces the commonly used mode?locking technologies and development of GHz solid?state femtosecond lasers such as SESAM mode?locking, KLM mode?locking and high?order harmonic mode?locking, and expounds the performance advantages of GHz femtosecond light sources in application scenarios such as laser processing, distance measurement and spectrum measurement. It also predicts the deve?lopment direction of GHz repetition rate solid?state femtosecond laser technology, and provides reference for promoting the improvement of GHz repetition rate solid?state laser technology.