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Los trabajos practicos de laboratorio sobre efecto Doppler optico no son una tarea sencilla, tanto en el diseno como en su realizacion para fines didacticos. La principal dificultad es el movimiento de la fuente, ya que pequenas perturbaciones del orden de la longitud de onda de la luz introducen ruidos en la medicion. El uso de un espejo giratorio, en el que un haz se refleja desde el lado de avance y otro es reflejado desde la parte en retroceso, minimiza problemas de ruido. El trabajo practico que se describe en este articulo se puede realizar con material de bajo costo y accesible a un laboratorio con fines didacticos. Se incluyen preguntas y problemas que permiten al docente abordar esta practica tanto desde lo teorico como lo metodologico. Palabras clave: Fisica ondulatoria y moderna; Optica; Efecto Doppler; Ensenanza de la ciencias; Didactica de la investigacion. Proposal of a practical laboratory work on Optical Doppler Shift in the university classroom Practical teaching experiments on optical Doppler effect are not a simple task, not only by the design but also because the experiment itself have many issues. The main problem is to produce a smooth movement of the light source, for little imperfections, of the order of the wavelength, result in important noises in the final measurements. Using a rotating mirror in which the incident beam is reflected in both the receding and the advancing parts of its surface, allows to minimize noise problems as well as mechanical deviations. The laboratory practice described in this paper can be constructed using low cost parts that are usually found in student laboratories. We also propose some questions and problems to help the teaching to work out this matter. Keywords: Wave and modern physics; Optics; Doppler effect; Teaching resources; Research on didactic.

Propuesta de un trabajo práctico de laboratorio sobre corrimiento Doppler óptico en el aula universitaria