Modal decomposition of measured near-field and far-field beams with partial coherence based on SPGD algorithm

• DOI: 10.1364/cleopr.2020.p1_6
• Publication Date: 2020-10-19T19:55:56Z
• Authors: Kyuhong Choi; Youngchan Kim; Youngsun Yun; Young-Chul Noh; Changsu Jun
• Keywords: Degree of coherence; Stochastic Gradient Descent; Coherence time

By including the additional variable, degree of coherence (DOC) in stochastic parallel gradient descent (SPGD) algorithm, we could improve accuracy modal decomposition which satisfies both measured near-field and far-field laser beams.