Abstract
The improved method for calculation of a phase hologram and its application to laser writing of waveguides with a spatial light modulator are presented. It was found that the amplitude and phase distributions of light spots generated by a phase hologram can be distorted compared to those of a focused single beam. The distortion of light spots could be reduced by adding a simple constraint, in which light intensities around a light spot should be as small as possible, to the conventional calculation method of a phase hologram. It was also demonstrated that the improved calculation method can be considered essential for laser writing of waveguides.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Masaaki Sakakura, Tsutomu Sawano, Yasuhiko Shimotsuma, Kiyotaka Miura, and Kazuyuki Hirao
Opt. Express 18(12) 12136-12143 (2010)
Yicun Yao, Ningning Dong, Feng Chen, Sudheer Kumar Vanga, and Andrew Anthony Bettiol
Opt. Lett. 36(21) 4173-4175 (2011)
René Berlich, Daniel Richter, Martin Richardson, and Stefan Nolte
Opt. Lett. 41(8) 1752-1755 (2016)