Title :
Experimental demonstration of orbital-angular-momentum demultiplexing using an optical FFT in the spatial domain
Author :
Hao Huang ; Guodong Xie ; Ahmed, Nova ; Yongxiong Ren ; Yan Yan ; Lavery, Martin P. J. ; Padgett, M.J. ; Dolinar, Sam ; Willner, Alan E.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate orbital angular momentum modes separation using a geometrical transform-based mode sorter combined with a spatial Fast Fourier Transform. The observed crosstalk between the adjacent modes is <;-11.8 dB. A lower crosstalk of <;-18.6 dB is anticipated by simulation results.
Keywords :
angular momentum; demultiplexing; fast Fourier transforms; optical crosstalk; crosstalk; geometrical transform-based mode sorter; optical FFT; orbital-angular-momentum demultiplexing; spatial domain; spatial fast Fourier transform; Crosstalk; Demultiplexing; Educational institutions; OFDM; Optical crosstalk; Optical filters; Optical vortices;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
