Free-space optical transmission with orbital angular momentum division multiplexing

Martelli, Paolo; Gatto, Alberto; Boffi, Pierpaolo; Martinelli, Mario

doi:10.1049/el.2011.1766

Cited by 54 publications

(27 citation statements)

References 9 publications

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“…Considering the above introduced 2 Â 2 matrices for L z and S z , we obtain, substituting (1) and (2) in (3), the following 4 Â 4 matrix representing the total angular momentum…”

Section: Angular Momentum Representationmentioning

confidence: 99%

Representation and Evolution of the Angular Momentum of the Light

Martelli

Martinelli

2014

IEEE Photonics J.

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A compact formalism for representing the angular momentum modes in paraxial optics is considered. The evolution of both spin and orbital components of angular momentum is described within such representation. A thorough analysis of the effect of reflection is carried out, and different kinds of reflective interfaces are analyzed. A general method for building the matrices representing the transformations of the spin and orbital angular momenta is introduced and applied to some meaningful examples concerning wave plates, mirrors, and prisms.

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“…Considering the above introduced 2 Â 2 matrices for L z and S z , we obtain, substituting (1) and (2) in (3), the following 4 Â 4 matrix representing the total angular momentum…”

Section: Angular Momentum Representationmentioning

confidence: 99%

Representation and Evolution of the Angular Momentum of the Light

Martelli

Martinelli

2014

IEEE Photonics J.

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“…OV beams have helical phase profiles in their electric fields that are proportional to the azimuthal phase term of exp(i'w), where ' is the eigenvalue of the OAM or the so-called topological charge and w is the azimuthal angle. In principle, the values of ' are unlimited, which makes it possible to use the OAM states as information channels to carry signals [12][13][14][15] for data transmission. The superior security advantages of OAM channels have also been demonstrated in both classical and quantum communication systems.…”

Section: Introductionmentioning

confidence: 99%

Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings

et al. 2015

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Data transmission rates in optical communication systems are approaching the limits of conventional multiplexing methods. Orbital angular momentum (OAM) in optical vortex beams offers a new degree of freedom and the potential to increase the capacity of free-space optical communication systems, with OAM beams acting as information carriers for OAM division multiplexing (OAM-DM). We demonstrate independent collinear OAM channel generation, transmission and simultaneous detection using Dammann optical vortex gratings (DOVGs). We achieve 80/160 Tbit s 21 capacity with uniform power distributions along all channels, with 1600 individually modulated quadrature phase-shift keying (QPSK)/16-QAM data channels multiplexed by 10 OAM states, 80 wavelengths and two polarizations. DOVG-enabled OAM multiplexing technology removes the bottleneck of massive OAM state parallel detection and offers an opportunity to raise optical communication systems capacity to Pbit s 21 level.

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“…Mode division multiplexing (MDM) could be a suitable technique for multimode links. Choosing a suitable subset of propagation constants, independent signals can travel on different propagation modes [4,5]. In the last years, some mode multiplexing and demultiplexing techniques have been experimentally validated [6].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of communication links based on VCSEL and silicon photonics technology for high-capacity data-intensive scenario

Boletti¹,

Boffi²,

Martelli³

et al. 2015

Opt. Express

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To face the increased demand for bandwidth, cost-effectiveness and simplicity of future Ethernet data communications, a comparison between two different solutions based on directly-modulated VCSEL sources and Silicon Photonics technologies is carried out. Also by exploiting 4-PAM modulation, the transmission of 50-Gb/s and beyond capacity per channel is analyzed by means of BER performance. Applications for optical backplane, very short reach and in case of client-optics networks and intra and inter massive data centers communications (up to 10 km) are taken into account. A comparative analysis based on the power consumption is also proposed.

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Free-space optical transmission with orbital angular momentum division multiplexing

Cited by 54 publications

References 9 publications

Representation and Evolution of the Angular Momentum of the Light

Representation and Evolution of the Angular Momentum of the Light

Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings

Performance analysis of communication links based on VCSEL and silicon photonics technology for high-capacity data-intensive scenario

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