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- Title
Fabrication of λ/2 phase step mirror for CO<sub>2</sub> laser resonator using diamond turning.
- Authors
Mishra, Vinod; Biswas, Abhik Kumar; Kumar, Neeraj; Kukreja, Lalit Mohan; Vizia Sarepaka, Ramagopal
- 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.
- Subjects
LASER cavity resonators; DIAMOND turning; CAVITY resonators; OPTICAL resonators; GLASS grinding & polishing
- Publication
Optical Engineering, 2014, Vol 53, Issue 3, p1
- ISSN
0091-3286
- Publication type
Academic Journal
- DOI
10.1117/1.OE.53.3.036107