Ring beam shaping optics fabricated with ultra-precision cutting for YAG laser processing

• Published in: Optical review (Tokyo, Japan) Vol. 19; no. 2; pp. 98 - 102
• Main Authors: Kuwano, Ryoichi, Koga, Toshihiko, Tokunaga, Tsuyoshi, Wakayama, Toshitaka, Otani, Yukitoshi, Fujii, Nobuyuki
• Format: Journal Article
• Language: English
• Published: Japan Optical Society of Japan 01.03.2012
• Subjects: Atomic; Lasers; Microwaves; Molecular; Optical and Plasma Physics; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Quantum Optics; Regular Paper; RF and Optical Engineering; ultra-precision cutting; YAG laser processing; ring intensity distribution; beam shaping; aspheric lens; single-crystal diamond tool

In this study, a method for generating ring intensity distribution at a refraction-type lens with an aspheric element was proposed, and the beam shaping optical element was finished using only ultra-precision cutting. The shape of the optical element and its irradiance pattern were determined from n...