Statistical model for fading return signals in coherent lidarsAniceto Belmonte
Department of Signal Theory and Communications, Technical University of Catalonia, BarcelonaTech, 08034 Barcelona, Spain
Appl Opt 49:6737-48. 2010
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Digital coherent receiver for orbital angular momentum demultiplexingAniceto Belmonte
Technical University of Catalonia, BarcelonaTech, Department of Signal Theory and Communications, Barcelona 08034, Spain
Opt Lett 38:241-3. 2013
..By computer processing the coherent electrical patterns obtained, one can retrieve full information (amplitude and phase) of the different OAM components that constitute any incoming beam...
Self-homodyne detection of the light orbital angular momentumAniceto Belmonte
Technical University of Catalonia, BarcelonaTech, Department of Signal Theory and Communications, 08034 Barcelona, Spain
Opt Lett 37:2940-2. 2012
..A balanced receiver is used to perform a self-homodyne measure of the optical signal from two different locations at the beam wavefront...
Influence of atmospheric phase compensation on optical heterodyne power measurementsAniceto Belmonte
Department of Signal Theory and Communications, Technical University of Catalonia, 08034 Barcelona, Spain
Opt Express 16:6756-67. 2008
..However, wave-front amplitude fluctuations can limit the compensation process and diminish the achievable heterodyne performance...
Capacity of coherent free-space optical links using atmospheric compensation techniquesAniceto Belmonte
Technical University of Catalonia, Department of Signal Theory and Communications, 08034 Barcelona, Spain
Opt Express 17:2763-73. 2009
..We study the effect of various parameters, including the ratio of receiver aperture diameter to wavefront coherence diameter, the strength of the scintillation index, and the number of modes compensated...
Capacity of coherent free-space optical links using diversity-combining techniquesAniceto Belmonte
Technical University of Catalonia, Department of Signal Theory and Communications, 08034 Barcelona, Spain
Opt Express 17:12601-11. 2009
..We consider both maximal-ratio combining (MRC) and selective combining (SC) diversity schemes. We derive expressions for the outage Shannon capacity, thus placing upper bounds on the spectral efficiency achievable using these techniques...
Efficiency of complex modulation methods in coherent free-space optical linksAniceto Belmonte
Technical University of Catalonia, Department of Signal Theory and Communications, 08034 Barcelona, Spain
Opt Express 18:3928-37. 2010
..Our analysis shows that high communication rates require receivers with good sensitivity along with some technique to mitigate the effect of atmospheric fading...
Performance of synchronous optical receivers using atmospheric compensation techniquesAniceto Belmonte
Department of Signal Theory and Communications, Technical University of Catalonia, 08034 Barcelona, Spain
Opt Express 16:14151-62. 2008
..We compute error probabilities for M-ary phase-shift keying, and evaluate the impact of various parameters, including the ratio of receiver aperture diameter to the wave-front coherence diameter, and the number of modes compensated...
Optical Doppler shift with structured lightAniceto Belmonte
Technical University of Catalonia, BarcelonaTech, Department of Signal Theory and Communications, Barcelona, Spain
Opt Lett 36:4437-9. 2011
..We discuss here how this new effect can be used to enhance the current capabilities of optical measurement systems, adding the capacity to detect more complex movements of scatters...