scholarly journals “Coherent Transitions” and Rabi-type Oscillations between Spatial Modes of Classical Light

2019 ◽  
Author(s):  
A. Bogatskaya ◽  
N. Klenov ◽  
A. Popov ◽  
A. Rakhimov
Keyword(s):  
Spatial Modes

scholarly journals High-Dimensional Two-Photon Interference Effects in Spatial Modes

2021 ◽  
Vol 126 (12) ◽  
Author(s):  
Markus Hiekkamäki ◽  
Robert Fickler
Keyword(s):  
High Dimensional ◽  
Interference Effects ◽  
Two Photon ◽  
Spatial Modes

Control of transverse spatial modes in transient stimulated Raman amplification

1990 ◽  
Vol 7 (7) ◽  
pp. 1336 ◽  
Author(s):  
M. D. Duncan ◽  
R. Mahon ◽  
L. L. Tankersley ◽  
J. Reintjes
Keyword(s):  
Raman Amplification ◽  
Spatial Modes ◽  
Stimulated Raman

Allocation of spectral and spatial modes in multidimensional metro-access optical networks

2018 ◽  
Vol 413 ◽  
pp. 80-86 ◽  
Author(s):  
Wenbo Gao ◽  
Milorad Cvijetic
Keyword(s):  
Optical Networks ◽  
Spatial Modes

Inverse design of aircraft cabin environment using computational fluid dynamics-based proper orthogonal decomposition method

2017 ◽  
Vol 27 (10) ◽  
pp. 1379-1391 ◽  
Author(s):  
Jihong Wang ◽  
Tengfei (Tim) Zhang ◽  
Hongbiao Zhou ◽  
Shugang Wang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Proper Orthogonal Decomposition ◽  
Flow Fields ◽  
Orthogonal Decomposition ◽  
Inverse Design ◽  
Air Supply ◽  
Spatial Modes ◽  
Cabin Environment ◽  
Proper Orthogonal

To design a comfortable aircraft cabin environment, designers conventionally follow an iterative guess-and-correction procedure to determine the air-supply parameters. The conventional method has an extremely low efficiency but does not guarantee an optimal design. This investigation proposed an inverse design method based on a proper orthogonal decomposition of the thermo-flow data provided by full computational fluid dynamics simulations. The orthogonal spatial modes of the thermo-flow fields and corresponding coefficients were firstly extracted. Then, a thermo-flow field was expressed into a linear combination of the spatial modes with their coefficients. The coefficients for each spatial mode are functions of air-supply parameters, which can be interpolated. With a quick map of the cause–effect relationship between the air-supply parameters and the exhibited thermo-flow fields, the optimal air-supply parameters were determined from specific design targets. By setting the percentage of dissatisfied and the predicted mean vote as design targets, the proposed method was implemented for inverse determination of air-supply parameters in two aircraft cabins. The results show that the inverse design using computational fluid dynamics-based proper orthogonal decomposition method is viable. Most of computing time lies in the construction of data samples of thermo-flow fields, while the proper orthogonal decomposition analysis and data interpolation is efficient.

scholarly journals Demonstration of analog links using spatial modes in km-scale few mode fiber

2017 ◽  
Vol 25 (4) ◽  
pp. 3613 ◽  
Author(s):  
Jing Du ◽  
Dequan Xie ◽  
Chen Yang ◽  
Jian Wang
Keyword(s):  
Spatial Modes

Evaluation of eavesdropping error-rates in higher-dimensional QKD system implemented using dynamic spatial modes

2021 ◽  
Author(s):  
Muhammad Kamran ◽  
Tahir Malik ◽  
Muhammad Mubashir Khan
Keyword(s):  
Error Rate ◽  
Photon Number ◽  
Error Rates ◽  
Security And Privacy ◽  
Practical Implementation ◽  
Secret Key ◽  
Decoy State ◽  
Rate Analysis ◽  
Higher Dimensional ◽  
Spatial Modes

Secure exchange of cryptographic keys is extremely important for any communication system where security and privacy of data is desirable. Although classical cryptographic algorithms provide computationally secure methods for secret key exchange, quantum key distribution (QKD) provides an extraordinary means to this end by guaranteeing unconditional security. Any malicious interception of communication by a man-in-the-middle on a QKD link immediately alerts sender and receiver by introducing an unavoidable error-rate. Higher-dimensional QKD protocols such as KMB09 exhibit higher eavesdropping error-rates with improved intrusion detection but their practical implementation is still awaited. In this paper, we present the design and implementation of KMB09 protocol using Laguerre–Gaussian orbital angular momentum to demonstrate and highlight the advantages of using dynamic spatial modes in QKD system. A complete error-rate analysis of KMB09 protocol implementation is presented with two different types of eavesdropping error-rates. Furthermore, we also demonstrate the decoy state method to show the robustness of the protocol against photon-number-splitting attack.

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