Learning about light properties using a system for optical signal processing.
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| Title: | Learning about light properties using a system for optical signal processing. |
|---|---|
| Authors: | Ramírez-Flores, G.1 gramirez@cactus.iico.uaslp.mx, Rodríguez, A.1, Guel, S.1, Suárez-Rodríguez, P.2,3, Torres-Luna, L. M.4 |
| Source: | Latin-American Journal of Physics Education. Jun2016, Vol. 10 Issue 2, p1-5. 5p. |
| Subject Terms: | Signal processing, Optical communications, Holography |
| Abstract (English): | To learn and manipulate the wave nature of light, for purpose of teaching, we designed and set up an optical communication system using low cost laser diodes and multiplexing holograms. Making use of the wave nature of light, different kind of information could be send using different wavelengths appropriated to perform a multiplexing effect. By making several beams of light, each modulated in amplitude by dissimilar analogical or digital signals, to impinge simultaneously on a holographic grid, which send the beams thorough some kind of waveguide that can be an optical fiber. At the output where information was received, a similar grid was used to separate the different information carriers, each being addressed towards different corresponding photo detectors for demodulating the desired information. Modulation of laser light was realized by standard simple electrical circuits, which bring out different kind of information. For example, audio signals, radio transmitters, cell phones, portative sound reproducers. In addition, by simple standard circuits for the photo detectors we could convert intensity light variations into electrical signal differences, for each wavelength, which lead to the final information retrieval using corresponding transducers, as loudspeakers, which is the final stage for the information originally sent throughout optical signal variations. The proposed method was tested with a 17 students with favorable results, encouraging the authors for designing new experiments with the same idea of making a more dynamical active learning to help the students to develop new skills and more effective training in optical engineering and applications. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): | Con propósito de enseñanza, hemos diseñado y creado un sistema de comunicación óptica, utilizando diodos láser de bajo coste y hologramas de multiplexación, para aprender y manipular la naturaleza ondulatoria de la luz. Haciendo uso de la naturaleza ondulatoria de la luz, diferentes tipos de información se podrían enviar usando diferentes longitudes de onda apropiada para realizar un efecto de multiplexación. Al hacer varios haces de luz, cada uno modulado en amplitud por señales analógicas o digitales diferentes, que inciden simultáneamente sobre una rejilla holográfica, que envían las haces mediante algún tipo de guía de ondas que puede ser una fibra óptica. En la salida donde se recibió información, una rejilla similar se utilizó para separar los diferentes soportes de información, cada uno dirigido hacia diferentes fotodetectores correspondientes a la demodulación de la información deseada. La modulación de la luz láser se realizó por medio de circuitos eléctricos simples estándar que llevan a cabo diferentes tipos de información; por ejemplo: señales de audio, transmisores de radio, teléfonos celulares, reproductores portátiles de sonido. Además, con circuitos estándar simples para los fotodetectores, podríamos convertir las variaciones de intensidad de luz en diferencias de señal eléctrica, para cada longitud de onda, que conduzcan a la recuperación de la información final, utilizando los transductores correspondientes, como altavoces. Esa es la etapa final de la información enviada originalmente, a través de variaciones de la señal óptica. El método propuesto se probó con unos diecisiete estudiantes, con resultados favorables. Esto animó a los autores al diseño de nuevos experimentos, con la misma idea de hacer un aprendizaje activo más dinámico, para ayudar a los estudiantes a desarrollar nuevas habilidades y una formación más eficaz en la ingeniería óptica y aplicaciones. [ABSTRACT FROM AUTHOR] |
| Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Education Research Complete |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: ehh DbLabel: Education Research Complete An: 137302018 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Learning about light properties using a system for optical signal processing. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ramírez-Flores%2C+G%2E%22">Ramírez-Flores, G.</searchLink><relatesTo>1</relatesTo><i> gramirez@cactus.iico.uaslp.mx</i><br /><searchLink fieldCode="AR" term="%22Rodríguez%2C+A%2E%22">Rodríguez, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Guel%2C+S%2E%22">Guel, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Suárez-Rodríguez%2C+P%2E%22">Suárez-Rodríguez, P.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Torres-Luna%2C+L%2E+M%2E%22">Torres-Luna, L. M.</searchLink><relatesTo>4</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Latin-American+Journal+of+Physics+Education%22">Latin-American Journal of Physics Education</searchLink>. Jun2016, Vol. 10 Issue 2, p1-5. 5p. – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+communications%22">Optical communications</searchLink><br /><searchLink fieldCode="DE" term="%22Holography%22">Holography</searchLink> – Name: Abstract Label: Abstract (English) Group: Ab Data: To learn and manipulate the wave nature of light, for purpose of teaching, we designed and set up an optical communication system using low cost laser diodes and multiplexing holograms. Making use of the wave nature of light, different kind of information could be send using different wavelengths appropriated to perform a multiplexing effect. By making several beams of light, each modulated in amplitude by dissimilar analogical or digital signals, to impinge simultaneously on a holographic grid, which send the beams thorough some kind of waveguide that can be an optical fiber. At the output where information was received, a similar grid was used to separate the different information carriers, each being addressed towards different corresponding photo detectors for demodulating the desired information. Modulation of laser light was realized by standard simple electrical circuits, which bring out different kind of information. For example, audio signals, radio transmitters, cell phones, portative sound reproducers. In addition, by simple standard circuits for the photo detectors we could convert intensity light variations into electrical signal differences, for each wavelength, which lead to the final information retrieval using corresponding transducers, as loudspeakers, which is the final stage for the information originally sent throughout optical signal variations. The proposed method was tested with a 17 students with favorable results, encouraging the authors for designing new experiments with the same idea of making a more dynamical active learning to help the students to develop new skills and more effective training in optical engineering and applications. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Abstract (Spanish) Group: Ab Data: Con propósito de enseñanza, hemos diseñado y creado un sistema de comunicación óptica, utilizando diodos láser de bajo coste y hologramas de multiplexación, para aprender y manipular la naturaleza ondulatoria de la luz. Haciendo uso de la naturaleza ondulatoria de la luz, diferentes tipos de información se podrían enviar usando diferentes longitudes de onda apropiada para realizar un efecto de multiplexación. Al hacer varios haces de luz, cada uno modulado en amplitud por señales analógicas o digitales diferentes, que inciden simultáneamente sobre una rejilla holográfica, que envían las haces mediante algún tipo de guía de ondas que puede ser una fibra óptica. En la salida donde se recibió información, una rejilla similar se utilizó para separar los diferentes soportes de información, cada uno dirigido hacia diferentes fotodetectores correspondientes a la demodulación de la información deseada. La modulación de la luz láser se realizó por medio de circuitos eléctricos simples estándar que llevan a cabo diferentes tipos de información; por ejemplo: señales de audio, transmisores de radio, teléfonos celulares, reproductores portátiles de sonido. Además, con circuitos estándar simples para los fotodetectores, podríamos convertir las variaciones de intensidad de luz en diferencias de señal eléctrica, para cada longitud de onda, que conduzcan a la recuperación de la información final, utilizando los transductores correspondientes, como altavoces. Esa es la etapa final de la información enviada originalmente, a través de variaciones de la señal óptica. El método propuesto se probó con unos diecisiete estudiantes, con resultados favorables. Esto animó a los autores al diseño de nuevos experimentos, con la misma idea de hacer un aprendizaje activo más dinámico, para ayudar a los estudiantes a desarrollar nuevas habilidades y una formación más eficaz en la ingeniería óptica y aplicaciones. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 1 Subjects: – SubjectFull: Signal processing Type: general – SubjectFull: Optical communications Type: general – SubjectFull: Holography Type: general Titles: – TitleFull: Learning about light properties using a system for optical signal processing. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ramírez-Flores, G. – PersonEntity: Name: NameFull: Rodríguez, A. – PersonEntity: Name: NameFull: Guel, S. – PersonEntity: Name: NameFull: Suárez-Rodríguez, P. – PersonEntity: Name: NameFull: Torres-Luna, L. M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 18709095 Numbering: – Type: volume Value: 10 – Type: issue Value: 2 Titles: – TitleFull: Latin-American Journal of Physics Education Type: main |
| ResultId | 1 |
