Results 11 to 20 of about 7,292 (256)

Space-division multiplexing optical coherence tomography. [PDF]

Opt Express, 2013
High speed, high resolution and high sensitivity are desirable for optical coherence tomography (OCT). Here, we demonstrate a space-division multiplexing (SDM) technology that translates long coherence length of a commercially available wavelength tunable laser into high OCT imaging speed.
Zhou C, Alex A, Rasakanthan J, Ma Y.
europepmc   +3 more sources

2 × 20 Gbps - 40 GHz OFDM Ro-FSO transmission with mode division multiplexing [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
Radio-over-Free-Space-Optics (Ro-FSO) is a promising technology for future wireless networks. In this work, we have designed a hybrid orthogonal frequency division multiplexing (OFDM) Ro-FSO system for transmission of two independent channels by mode ...
Amphawan A., Chaudhary S., Chan V.W.S.
doaj   +1 more source

1-Pbps orbital angular momentum fibre-optic transmission

Light: Science & Applications, 2022
A 1-Pbps orbital-angular-momentum fibre-optic transmission system that combines space-division multiplexing and wavelength-division multiplexing in a 34 km 7-core ring-core fibre is demonstrated utilizing low-complexity 4 × 4 MIMO equalization.
Junyi Liu, Jingxing Zhang, Jie Liu, Zhenrui Lin, Zhenhua Li, Zhongzheng Lin, Junwei Zhang, Cong Huang, Shuqi Mo, Lei Shen, Shuqing Lin, Yujie Chen, Ran Gao, Lei Zhang, Xiaobo Lan, Xinlun Cai, Zhaohui Li, Siyuan Yu   +17 more
doaj   +1 more source

Weakly-coupled real-time SDM technology for short-reach optical transmission

Dianxin kexue, 2022
The capacity upgrade of short-reach optical fiber transmission has received more and more attention.Spatial division multiplexing provides two new dimensions of fiber core and mode, which can greatly increase the transmission capacity of a single fiber ...
Yuyang GAO, Juhao LI, Yongqi HE, Zhangyuan CHEN   +3 more
doaj   +2 more sources

Space-division multiplexing in optical fibres [PDF]

Nature Photonics, 2013
Optical communications technology has made enormous and steady progress for several decades, providing the key resource in our increasingly information-driven society and economy. Much of this progress has been in finding innovative ways to increase the data carrying capacity of a single optical fibre.
Richardson, D.J., Fini, J.M., Nelson, L.E.   +2 more
openaire   +3 more sources

Recent Advances in Imaging of Light Propagation with Light-in-Flight Recording by Holography

Ultrafast Science, 2023
In the last few decades, there have been several advances in ultrafast imaging of light propagation with light-in-flight recording by holography (LIF holography), which can capture light propagation as a motion picture with a single shot in principle ...
Tomoyoshi Inoue, Takashi Kakue, Kenzo Nishio, Toshihiro Kubota, Osamu Matoba, Yasuhiro Awatsuji   +5 more
doaj   +1 more source

Peta-bit-per-second optical communications system using a standard cladding diameter 15-mode fiber

Nature Communications, 2021
Space division multiplexing solutions are one way to increase future fiber information capacity. Here, the authors show peta-bit/s transmission in a standard-diameter, multimode fiber enabled by combining several practical multiplexing technologies.
Georg Rademacher, Benjamin J. Puttnam, Ruben S. Luís, Tobias A. Eriksson, Nicolas K. Fontaine, Mikael Mazur, Haoshuo Chen, Roland Ryf, David T. Neilson, Pierre Sillard, Frank Achten, Yoshinari Awaji, Hideaki Furukawa   +12 more
doaj   +1 more source

Performance Evaluation of a 4 × 20-Gbps OFDM-Based FSO Link Incorporating Hybrid W-MDM Techniques

Frontiers in Physics, 2021
Free space optics (FSO) has been recognized as a crucial technique to meet the high-bandwidth requirements in future wireless information transmission links.
Mehtab Singh, Mehtab Singh, Saleh Chebaane, Saleh Chebaane, Sana Ben Khalifa, Sana Ben Khalifa, Amit Grover, Sanjeev Dewra, Mohit Angurala   +8 more
doaj   +1 more source

Space-Division Multiplexing for Microwave Photonics [PDF]

2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
Despite Space division multiplexing fibers were initially envisioned as pure transmission media, they exhibit as well great potential for signal processing. We review here different solutions we developed for microwave signal processing devices and links.
Sergi García, Rubén Guillem, Mario Ureña, Ivana Gasulla   +3 more
openaire   +2 more sources

Generalized Multiuser Orthogonal Space-Division Multiplexing [PDF]

IEEE Transactions on Wireless Communications, 2004
This paper addresses the problem of performing orthogonal space-division multiplexing (OSDM) for downlink, point-to-multipoint communications when multiple antennas are utilized at the base station (BS) and (optionally) all mobile stations (MS). Based on a closed-form antenna weight solution for single-user multiple-input multiple-output communications
Pan, Z, Wong, KK, Ng, TS
openaire   +3 more sources