Integrated Compact Optical Vortex Beam Emitters

• DOI: 10.1126/science.1226528
• Publication Date: 2012-10-19T00:40:31Z
• Authors: Xinlun Cai; Jianwei Wang; Michael J. Strain; Benjamin Johnson-...; Jiangbo Zhu; Marc Sorel; Jeremy L. O’Brien; Mark G. Thompson; Siyuan Yu
• Keywords: Optical vortex

A Twist of Light The angular momentum photons can be used to encode and transmit information. Cai et al. (p. 363 ) developed a method for generating emitting controllable orbital states light from reconfigurable scalable silicon photonic chip. Using micro-ring resonators embedded with gratings allowed the imprinting optical on propagating in whispering gallery modes resonator. may enable large-scale integration vortex emitters complementary metal-oxide–semiconductor-compatible chips.