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Universal generation of higher-order multiringed Laguerre–Gaussian beams by using a spatial light modulator

Yoshiyuki Ohtake, Taro Ando, Norihiro Fukuchi, Naoya Matsumoto, Haruyasu Ito , and Tsutomu Hara

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Abstract

Laguerre–Gaussian (LG) beams of various higher-order radial modes are generated by using a reflective phase-only liquid crystal on silicon (LCOS) spatial light modulator (SLM). Because of the LCOS SLM’s phase-modulation characteristic of a wide spatial bandwidth, a phase modulation scheme effectively generates higher-order LG beams of up to the fifth-order radial mode. We also perform correlation analyses between the observed and the theoretical two-dimensional mode profiles to universally obtain correlation coefficients of more than 0.946, which suggest mode generations of high quality.

© 2007 Optical Society of America

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