Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating
A novel equalizing Dammann vortex grating (EDVG) is proposed as orbital angular momentum (OAM) multiplexer to realize OAM signal demultiplexing and channel equalization. The EDVG is designed by suppressing odd diffraction orders and adjusting the grating structure. The light intensity of diffraction...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2017/6293910 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563716415029248 |
|---|---|
| author | Mingyang Su Junmin Liu Yanliang He Shuqing Chen Ying Li |
| author_facet | Mingyang Su Junmin Liu Yanliang He Shuqing Chen Ying Li |
| author_sort | Mingyang Su |
| collection | DOAJ |
| description | A novel equalizing Dammann vortex grating (EDVG) is proposed as orbital angular momentum (OAM) multiplexer to realize OAM signal demultiplexing and channel equalization. The EDVG is designed by suppressing odd diffraction orders and adjusting the grating structure. The light intensity of diffraction is subsequently distributed evenly in the diffraction orders, and the total diffraction efficiency can be improved from 53.22% to 82%. By using the EDVG, OAM demultiplexing and channel equalization can be realized. Numerical simulation shows that the bit error rate (BER) of each OAM channel can decrease to 10-4 when the bit SNR is 22 dB, and the intensity is distributed over the necessary order of diffraction evenly. |
| format | Article |
| id | doaj-art-8e156fa307944f969ebc6890f91736c3 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-8e156fa307944f969ebc6890f91736c32025-02-03T01:12:41ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242017-01-01201710.1155/2017/62939106293910Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex GratingMingyang Su0Junmin Liu1Yanliang He2Shuqing Chen3Ying Li4International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, ChinaA novel equalizing Dammann vortex grating (EDVG) is proposed as orbital angular momentum (OAM) multiplexer to realize OAM signal demultiplexing and channel equalization. The EDVG is designed by suppressing odd diffraction orders and adjusting the grating structure. The light intensity of diffraction is subsequently distributed evenly in the diffraction orders, and the total diffraction efficiency can be improved from 53.22% to 82%. By using the EDVG, OAM demultiplexing and channel equalization can be realized. Numerical simulation shows that the bit error rate (BER) of each OAM channel can decrease to 10-4 when the bit SNR is 22 dB, and the intensity is distributed over the necessary order of diffraction evenly.http://dx.doi.org/10.1155/2017/6293910 |
| spellingShingle | Mingyang Su Junmin Liu Yanliang He Shuqing Chen Ying Li Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating Advances in Condensed Matter Physics |
| title | Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating |
| title_full | Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating |
| title_fullStr | Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating |
| title_full_unstemmed | Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating |
| title_short | Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating |
| title_sort | optical orbital angular momentum demultiplexing and channel equalization by using equalizing dammann vortex grating |
| url | http://dx.doi.org/10.1155/2017/6293910 |
| work_keys_str_mv | AT mingyangsu opticalorbitalangularmomentumdemultiplexingandchannelequalizationbyusingequalizingdammannvortexgrating AT junminliu opticalorbitalangularmomentumdemultiplexingandchannelequalizationbyusingequalizingdammannvortexgrating AT yanlianghe opticalorbitalangularmomentumdemultiplexingandchannelequalizationbyusingequalizingdammannvortexgrating AT shuqingchen opticalorbitalangularmomentumdemultiplexingandchannelequalizationbyusingequalizingdammannvortexgrating AT yingli opticalorbitalangularmomentumdemultiplexingandchannelequalizationbyusingequalizingdammannvortexgrating |