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V-Shape Liquid Crystal-Based Retromodulator Air to Ground Optical Communications
Cita
Geday, Morten Andreas 
ORCID: https://orcid.org/0000-0002-5625-1162, Campo, Guillermo del, Carrasco-Casado, A., Bennis, Noureddine, Quintana Arregui, Patxi Xabier ORCID: https://orcid.org/0000-0003-4315-2701, López Hernández, Francisco and Otón Sánchez, José Manuel ORCID: https://orcid.org/0000-0001-8070-9180
(2008).
V-Shape Liquid Crystal-Based Retromodulator Air to Ground Optical Communications.
"Molecular Crystals and Liquid Crystals", v. 494
;
pp. 213-221.
ISSN 1542-1406.
https://doi.org/10.1080/15421400802430299.
ORCID: https://orcid.org/0000-0002-5625-1162, Campo, Guillermo del, Carrasco-Casado, A., Bennis, Noureddine, Quintana Arregui, Patxi Xabier ORCID: https://orcid.org/0000-0003-4315-2701, López Hernández, Francisco and Otón Sánchez, José Manuel ORCID: https://orcid.org/0000-0001-8070-9180
(2008).
V-Shape Liquid Crystal-Based Retromodulator Air to Ground Optical Communications.
"Molecular Crystals and Liquid Crystals", v. 494
;
pp. 213-221.
ISSN 1542-1406.
https://doi.org/10.1080/15421400802430299.
Descripción
| Título: | V-Shape Liquid Crystal-Based Retromodulator Air to Ground Optical Communications |
|---|---|
| Autor/es: |
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| Tipo de Documento: | Artículo |
| Título de Revista/Publicación: | Molecular Crystals and Liquid Crystals |
| Fecha: | 2008 |
| ISSN: | 1542-1406 |
| Volumen: | 494 |
| Materias: | |
| ODS: | |
| Palabras Clave Informales: | optical communications; PolSK; retro-modulation; V-shape smectics |
| Escuela: | E.T.S.I. Telecomunicación (UPM) |
| Departamento: | Tecnología Fotónica [hasta 2014] |
| Licencias Creative Commons: | Reconocimiento - Sin obra derivada - No comercial |
Resumen
This paper describes the use of a 2D liquid crystal retro-modulator as a free space, wireless, optical link. The retro-modulator is made up of a retro-reflecting cornercube onto which 2 cascaded V-shape smectics liquid crystal modulators are mounted. The communication link differs with respect to more conventional optical links in not using amplitude (nor frequency) modulation, but instead state-of-polarisation (SOP) modulation known as Polarisation Shift Keying (PolSK). PolSK has the advantage over amplitude modulation, that it is less sensitive to changes in the visibility of the atmosphere, and increases inherently the bandwidth of the link. The implementation of PolSK both in liquid crystal based and in retro-modulated communication are novelties.
Más información
| ID de Registro: | 2818 |
|---|---|
| Identificador DC: | https://oa.upm.es/2818/ |
| Identificador OAI: | oai:oa.upm.es:2818 |
| URL Portal Científico: | https://portalcientifico.upm.es/es/ipublic/item/5482784 |
| Identificador DOI: | 10.1080/15421400802430299 |
| URL Oficial: | http://www.tandf.co.uk/journals/titles/1058725x.ht... |
| Depositado por: | Memoria Investigacion |
| Depositado el: | 22 Abr 2010 10:57 |
| Ultima Modificación: | 12 Nov 2025 00:00 |
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