Efficient mode transformations of degenerate Laguerre-Gaussian beams

Galina Machavariani; Amiel A. Ishaaya; Liran Shimshi; Nir Davidson; Asher A. Friesem; Erez Hasman

doi:10.1364/AO.43.002561

Efficient mode transformations of degenerate Laguerre-Gaussian beams

Galina Machavariani, Amiel A. Ishaaya, Liran Shimshi, Nir Davidson, Asher A. Friesem, Erez Hasman

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We present an approach for efficient conversion of a single-high-order-mode distribution from a laser to a nearly Gaussian distribution and vice versa. It is based on dividing the high-order mode distribution into equal parts that are then combined together coherently. We implement our approach with several optical arrangements that include a combination of discrete elements and some with single interferometric elements. These arrangements are analyzed and experimentally evaluated for converting the TEM₀₁ mode distribution with M_x² = 3 to a nearly Gaussian beam with M_x² = 1.045 or M_x² = 1.15. The basic principle, design, and experimental results obtained with several conversion arrangements are presented. The results reveal that conversion efficiency is typically greater than 90%, compared with theoretical ones. In addition, some arrangement is exploited for converting the fundamental Gaussian-beam distribution into the TEM₀₁ mode distribution.

Original language	English
Pages (from-to)	2561-2567
Number of pages	7
Journal	Applied Optics
Volume	43
Issue number	12
DOIs	https://doi.org/10.1364/AO.43.002561
State	Published - 20 Apr 2004
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.43.002561

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abstract = "We present an approach for efficient conversion of a single-high-order-mode distribution from a laser to a nearly Gaussian distribution and vice versa. It is based on dividing the high-order mode distribution into equal parts that are then combined together coherently. We implement our approach with several optical arrangements that include a combination of discrete elements and some with single interferometric elements. These arrangements are analyzed and experimentally evaluated for converting the TEM01 mode distribution with Mx2 = 3 to a nearly Gaussian beam with Mx2 = 1.045 or Mx2 = 1.15. The basic principle, design, and experimental results obtained with several conversion arrangements are presented. The results reveal that conversion efficiency is typically greater than 90%, compared with theoretical ones. In addition, some arrangement is exploited for converting the fundamental Gaussian-beam distribution into the TEM01 mode distribution.",

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T1 - Efficient mode transformations of degenerate Laguerre-Gaussian beams

AU - Machavariani, Galina

AU - Ishaaya, Amiel A.

AU - Shimshi, Liran

AU - Davidson, Nir

AU - Friesem, Asher A.

AU - Hasman, Erez

PY - 2004/4/20

Y1 - 2004/4/20

N2 - We present an approach for efficient conversion of a single-high-order-mode distribution from a laser to a nearly Gaussian distribution and vice versa. It is based on dividing the high-order mode distribution into equal parts that are then combined together coherently. We implement our approach with several optical arrangements that include a combination of discrete elements and some with single interferometric elements. These arrangements are analyzed and experimentally evaluated for converting the TEM01 mode distribution with Mx2 = 3 to a nearly Gaussian beam with Mx2 = 1.045 or Mx2 = 1.15. The basic principle, design, and experimental results obtained with several conversion arrangements are presented. The results reveal that conversion efficiency is typically greater than 90%, compared with theoretical ones. In addition, some arrangement is exploited for converting the fundamental Gaussian-beam distribution into the TEM01 mode distribution.

AB - We present an approach for efficient conversion of a single-high-order-mode distribution from a laser to a nearly Gaussian distribution and vice versa. It is based on dividing the high-order mode distribution into equal parts that are then combined together coherently. We implement our approach with several optical arrangements that include a combination of discrete elements and some with single interferometric elements. These arrangements are analyzed and experimentally evaluated for converting the TEM01 mode distribution with Mx2 = 3 to a nearly Gaussian beam with Mx2 = 1.045 or Mx2 = 1.15. The basic principle, design, and experimental results obtained with several conversion arrangements are presented. The results reveal that conversion efficiency is typically greater than 90%, compared with theoretical ones. In addition, some arrangement is exploited for converting the fundamental Gaussian-beam distribution into the TEM01 mode distribution.

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Efficient mode transformations of degenerate Laguerre-Gaussian beams

Abstract

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