主要通过理论和实验研究相位匹配角和非共线角对三硼酸钙钇(YCOB)晶体光参量啁啾脉冲放大(OPCPA)的放大光谱产生的影响。理论上，通过数值模拟计算发现，基于YCOB-OPCPA的放大光谱对相位匹配角和非共线角的变化均比较敏感，当相位匹配角或非共线角有微小变化时，增益光谱将会出现中心波段漂移和窄化现象，但当非共线角在2.80°~2.91°之间变化时，总能找到一个理想的相位匹配角与之匹配，满足带宽大于80 nm的宽带OPCPA放大。为了获得高效率宽带OPCPA放大输出，提出一种基于高精密CCD的非共线角的测量方法，并利用该方法在实验中研究了不同非共线角下YCOB晶体OPCPA的光谱增益特性，并获得宽带放大光谱，为单次OPCPA调试实验提供参考。

Theoretical and experimental investigations are carried out to determine the influence of the phase matching angle and non-collinear angle on the optical parametric chirped pulse amplification (OPCPA) amplified spectrum of yttrium calcium oxyborate (YCOB) crystal. In theory, through the numerical simulation calculation, it is found that the amplified spectrum of YCOB-OPCPA is sensitive to the phase matching angle and non-collinear angle. When the phase matching angle or non-collinear angle is changed even in a small range, center wavelength drifting and narrowing phenomenon will occur in the gain spectrum. However, when the non-collinear angle is between 2.80° and 2.91°, there is always a phase matching angle that can match the non-collinear angle to satisfy the OPCPA output of more than 80 nm broadband with high power. With the purpose of getting high efficiency and broadband OPCPA output, a method to measure the non-collinear angle accurately based on high accurate CCD is proposed. With this method, the YCOB-OPCPA gain spectrum characteristics based on different non-collinear angles are researched, and the broadband OPCPA gain spectrum is acquired. The experimental results can provide a reference for single-shot pulse OPCPA experiments.