Abstract

Laguerre–Gaussian (LG) beams with different azimuthal indices are orthogonal to each other regardless of their radial indices. We investigate the potential advantage and impact of multiplexing LG beams with different azimuthal indices and nonzero radial indices, compared to LG beams with different azimuthal indices but zero radial index. Our simulation results show that LG beams with nonzero radial indices could help in receiving higher signal power in a free-space optical link under a certain short transmission distance range, especially when the receiver has a very limited aperture size. Our experimental demonstration shows a more than 6 dB received power improvement when multiplexing four LG beams with nonzero radial indices.

© 2016 Optical Society of America

Full Article  |  PDF Article

Corrections

9 December 2016: A correction was made to the pagination.


OSA Recommended Articles
Orbital-angular-momentum-multiplexed free-space optical communication link using transmitter lenses

Long Li, Guodong Xie, Yongxiong Ren, Nisar Ahmed, Hao Huang, Zhe Zhao, Peicheng Liao, Martin P. J. Lavery, Yan Yan, ChangJing Bao, Zhe Wang, Asher J. Willner, Nima Ashrafi, Solyman Ashrafi, Moshe Tur, and Alan E. Willner
Appl. Opt. 55(8) 2098-2103 (2016)

Performance metrics and design considerations for a free-space optical orbital-angular-momentum–multiplexed communication link

Guodong Xie, Long Li, Yongxiong Ren, Hao Huang, Yan Yan, Nisar Ahmed, Zhe Zhao, Martin P. J. Lavery, Nima Ashrafi, Solyman Ashrafi, Robert Bock, Moshe Tur, Andreas F. Molisch, and Alan E. Willner
Optica 2(4) 357-365 (2015)

Adaptive-optics-based simultaneous pre- and post-turbulence compensation of multiple orbital-angular-momentum beams in a bidirectional free-space optical link

Yongxiong Ren, Guodong Xie, Hao Huang, Nisar Ahmed, Yan Yan, Long Li, Changjing Bao, Martin P. J. Lavery, Moshe Tur, Mark A. Neifeld, Robert W. Boyd, Jeffrey H. Shapiro, and Alan E. Willner
Optica 1(6) 376-382 (2014)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription