Fabrication of λ/2 phase step mirror for CO2 laser resonator using diamond turning

Mishra, Vinod and Biswas, A.K. and Kumar, Neeraj and Kukreja, L.M. and Ramagopal, S.V. (2014) Fabrication of λ/2 phase step mirror for CO2 laser resonator using diamond turning. Optical Engineering, 53 (3). ISSN 0091-3286

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Official URL: http://opticalengineering.spiedigitallibrary.org/a...

Abstract

A stable optical resonator comprising a spherical rear mirror with a phase step of λ/2 at its center and a flat output coupler promises to produce a beam with very low diffraction. Based on this premise, a phase step mirror is fabricated on oxygen-free high-conductivity copper substrate using single-point diamond turning method for use in kilowatt-class CO2 laser. The fabrication technique and subsequent metrology measurements of the optical component, e.g., surface profile error and surface finish, are discussed.

Item Type: Article
Subjects: CSIO > Optics
Depositing User: Ms. Jyotsana
Date Deposited: 17 Feb 2017 11:55
Last Modified: 17 Feb 2017 11:55
URI: http://csioir.csio.res.in/id/eprint/481

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