19 July 2016 Multichannel mode conversion and multiplexing based on a single spatial light modulator for optical communication
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Abstract
A method is proposed to achieve multichannel mode conversion and multiplexing by dividing a single spatial light modulator into several blocks with the mode conversion pattern and blazed grating loaded on each block. The conversion patterns realize the precise excitation of higher order modes using combined amplitude and phase modulation. The blazed gratings bring together incident beams, so these beams can be coupled into few-mode fiber (FMF). In the experiment, four higher order modes are precisely excited and converge with a tilt angle. Through the simulation method, these beams can be coupled into FMF with small tilt angles (0.0344 deg for LP11 mode).
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Song Nie, Song Yu, Shanyong Cai, Mingying Lan, Wanyi Gu, "Multichannel mode conversion and multiplexing based on a single spatial light modulator for optical communication," Optical Engineering 55(7), 076108 (19 July 2016). https://doi.org/10.1117/1.OE.55.7.076108 . Submission:
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