Title:
GEOMETRIC OPTICAL TRANSFORMATION-BASED OAM CHANNEL EXTRACTION AND ADDITION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/093200
Kind Code:
A1
Abstract:
The present invention provides a geometric optical transformation-based OAM channel extraction and addition system and method. Said system achieves extraction and addition of multiple OAM light beams by means of combining linear optical geometric transformation-based mode converters, Fourier lenses and a programmable spatial light modulator. A symmetric mode converter is added to the right of the programmable spatial light modulator, and then the transmission or reflection of each small area of the spatial light modulator is programmed and controlled according to requirements, thereby achieving the extraction and addition of multiple OAM channels. The present invention is able to achieve extraction and addition of OAM channels by combining OAM light beam mode transformation with a programmable spatial light modulator.
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Inventors:
SHEN FEI (CN)
GUO ZHONGYI (CN)
GUO KAI (CN)
ZHOU HONGPING (CN)
ZHOU QINGFENG (CN)
FENG ZHIKANG (CN)
GUO ZHONGYI (CN)
GUO KAI (CN)
ZHOU HONGPING (CN)
ZHOU QINGFENG (CN)
FENG ZHIKANG (CN)
Application Number:
PCT/CN2018/113979
Publication Date:
May 14, 2020
Filing Date:
November 05, 2018
Export Citation:
Assignee:
UNIV DONGGUAN TECHNOLOGY (CN)
International Classes:
G02B6/293
Foreign References:
| CN103457659A | 2013-12-18 | |||
| CN105162587A | 2015-12-16 | |||
| CN101726868A | 2010-06-09 | |||
| CN101251655A | 2008-08-27 |
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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