Use of biorthogonal functions for the modal decomposition of multimode beams

OPTICS COMMUNICATIONS

卷:194

Article

Borghi, R ; Piquero, G ; Santarsiero, M

关键词: multimode lasers;    coherence theory;    biorthogonal functions;    Gaussian modes;   

DOI  :  10.1016/S0030-4018(01)01187-7

来源: Elsevier

【 摘 要 】

From a recently proposed technique, used to determine the modal weights of beams made up of incoherent superpositions of Hermite-Gaussian (PIG) modes, we derive the analytical expression of a family of functions which are biorthogonal to the squared HG functions. The knowledge of such functions enables the reconstruction of the modal content of these beams by means of the scalar-product with the intensity profile across a transverse plane. (C) 2001 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free