Title :
Liquid crystal linear polarizers for Faraday isolator in a high-power laser system
Author :
Kang, Chu Shik ; Kong, Hong Jin
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
It was demonstrated that a cholesteric liquid-crystal cell placed between two liquid-crystal quarter-waveplates functions as a linear polarizer. The liquid crystal linear polarizer constructed yielded an extinction ratio of 205:1, which can be improved further by using glass plates of better optical quality for cell substrates. Liquid-crystal linear polarizers are expected to be used as large-aperture polarizing elements for Faraday optical isolators in a high-power laser system.<>
Keywords :
Faraday effect; cholesteric liquid crystals; laser accessories; liquid crystal devices; magneto-optical devices; optical isolators; optical polarisers; Faraday isolator; cell substrates; cholesteric liquid-crystal cell; extinction ratio; glass plates; high-power laser system; large-aperture polarizing elements; linear polarizers; liquid-crystal quarter-waveplates; optical quality; Apertures; Isolators; Liquid crystals; Optical devices; Optical polarization; Optical refraction; Optical retarders; Optical sensors; Optical variables control; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
