Cavity design for generation of cylindrical vector beam in an Yb:YAB pulse laser with an intra-cavity birefringent crystal

Abstract

In this thesis we generate cylindrical vector beam in an Yb:YAB laser by using cavity design and birefringent crystal (YVO4) Through the analysis of the ABCD matrix and the G1G2 we can find the stable region of the cavity And also we can find the where ordinary ray (o-ray) and extraordinary ray (e-ray) exist separately the birefringent crystals can substantially increase stable region of o-ray and e-ray When the cavity length z2 is 73 5 cm the radial polarization (RP) and azimuthal polarization (AP) can be switched by adjusting the cavity length z1 After adding acousto-optic modulation crystal in the cavity the cylindrical vector beam with Q-switcheded pulses can be obtained and the polarization quality won't be affected

Date of Award	2020
Original language	English
Supervisor	Ming-Dar Wei (Supervisor)