کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7928241 1512555 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simultaneous and spatially separated detection of multiple orbital angular momentum states
ترجمه فارسی عنوان
تشخیص همزمان و فضایی از حالت های حرکتی زاویه ای مداری چندگانه
کلمات کلیدی
حرکت نوری نوری، ماسک هولوگرافی، مدولاتور فضایی، ماسک دامنه، جدایی فضایی، ارتباطات نوری فضای آزاد،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We present a method for spatially separated detection of multiple orbital angular momentum (OAM) states, simultaneous. The starting point is the generation of axially superposed Laguerre-Gauss beams, carrying multiple OAM states using a single computer generated hologram. The information contained in the OAM superposition is transferred to the first diffraction order and is detected at the receiver with a reading mask, which contains two perpendicular superposed fork-like holograms, ensuring the spatial separation of the OAM states. The dynamic of the process is studied in terms of the number of generated OAM states and the constructive parameters values. The experimental investigations use an optical arrangement based on a spatial light modulator in the transmitter unit and an amplitude mask in the receiver unit. This proof of concept experiment demonstrates the possibility of simultaneously detection of multiple OAM states in points located at different coordinates, controlled through the design of the holograms and shows the capability of our proposed method to increase the capacity of free-space optical communication channels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 368, 1 June 2016, Pages 141-149
نویسندگان
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