21 March 2014 Fabrication of λ/2 phase step mirror for CO2 laser resonator using diamond turning
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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 CO 2 laser. The fabrication technique and subsequent metrology measurements of the optical component, e.g., surface profile error and surface finish, are discussed.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Vinod Mishra, Abhik K. Biswas, Neeraj Kumar, Lalit M. Kukreja, Ramagopal V. Sarepaka, "Fabrication of λ/2 phase step mirror for CO2 laser resonator using diamond turning," Optical Engineering 53(3), 036107 (21 March 2014). https://doi.org/10.1117/1.OE.53.3.036107 . Submission:
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