Work

Quantitative measurement of thermal lensing in diode-side-pumped Nd:YAG laser by use of digital holographic interferometry

Year: 2016

Type: article

Abstract: Thermal lensing in diode-side-pumped Nd:YAG laser has been measured quantitatively using digital holographic interferometry. A series of holograms, carrying the information of the laser rod under different pump currents, are recorded with a CCD and reconstructed numerically. The optical path difference induced by the thermal lensing and the corresponding evolution process under different currents are obtained accordingly. Further, the thermal lensing diopters, induced aberrations, and its Zernike coefficients are calculated. The proposed method can be applied in the thermal lensing measurement and the optimization design of a laser resonator.

Source: Optics Express

DOI: 10.1364/oe.24.028185

Authors: Jianglei Di, Yang Yu, Zhaomin Wang, Weijuan Qu, Chee Yuen Cheng, Jianlin Zhao

Institutions: Northwestern Polytechnical University, Nanyang Technological University, Ngee Ann Polytechnic

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Natural Science Foundation of China