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2014•Unpublished venueRequires access

Investigation of a Nd:YAG Laser Resonator with Gaussian Mirror Using ABCD Matrix Method

Naeimeh Sharifi, Mohsen Hatami, mahmoud Borhani, Gholamreza Honarasa

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Abstract

In this paper, we review the ABCD matrix method for complex optical elements. Then, the Gaussian mirrors and their transform matrix are investigated. By considering a Nd:YAG laser with a Gaussian mirror as an output coupler, different resonator parameters such as the radius of curvature, spot size and mode volume of laser beam are obtained and compare them with the case of ordinary mirror. The results show that the spot size, radius of curvature and mode volume of laser beam inside laser active medium change with reflectivity distribution of the Gaussian mirror.

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What this paper is about

In this paper, we review the ABCD matrix method for complex optical elements. Then, the Gaussian mirrors and their transform matrix are investigated. By considering a Nd:YAG laser with a Gaussian mirror as an output coupler, different resonator parameters such as the radius of curvature, spot size and mode volume of laser beam are obtained and compare them with the case of ordinary mirror. The results show that the spot size, radius of curvature and mode volume of laser beam inside laser active medium change with reflectivity distribution of the Gaussian mirror.

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Available abstract

In this paper, we review the ABCD matrix method for complex optical elements. Then, the Gaussian mirrors and their transform matrix are investigated. By considering a Nd:YAG laser with a Gaussian mirror as an output coupler, different resonator parameters such as the radius of curvature, spot size and mode volume of laser beam are obtained and compare them with the case of ordinary mirror. The results show that the spot size, radius of curvature and mode volume of laser beam inside laser active medium change with reflectivity distribution of the Gaussian mirror.

Key concepts: Optics, Ray transfer matrix analysis, Radius of curvature, Curved mirror, Output coupler, Laser, Resonator, Gaussian beam

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