ABSTRACT:In this paper, we describe different use configurations of a wavelength detector and the main parameters of an optical bistable sensor. Mainly we analyze by simulation tools the influence of the spectral width of each signal involved in our wavelength detector, namely the LDD -Laser Diode Detector-. In particular, we study the spectral width effect of the signal to be detected. The LDD, based on the bistable behavior of semiconductor lasers, has an internal continuous wave laser that allows the calibration of the sensor. Also, the effect of the line width is analyzed for this CW laser. It is shown that, for the different types of signals, the detector achieves accuracy near to 0.001nm, working with typical manufacture parameters values of the laser diodes and with wavelengths centered in the optical communications C-band.Key words: Linewidth, Wavelength Detector, Laser Diode, Bistability, Optical Sensor RESUMEN:Se describen las diferentes configuraciones de uso de un detector de longitud de onda y los principales parámetros de un sensor óptico biestable. Se analiza en el dominio óptico mediante herramientas de simulación, la influencia del ancho espectral de las diferentes señales que intervienen en el detector de longitud de onda propuesto por los autores. El detector de longitud de onda denominado LDD (del inglés Laser Diode Detector) está basado en el comportamiento biestable de los láseres de semiconductor. Se estudia el efecto de la anchura espectral de la señal a detectar, y la del láser de onda continua que forma parte del dispositivo LDD. Se demuestra, en el estudio de los diferentes tipos de señales presentes, que se mantiene una precisión del detector cercana a 0.001nm, con valores típicos de fabricación de los diodos láser y a longitudes de onda centradas en la banca C de comunicaciones ópticas.Palabras clave: Ancho de Línea, Detector de Longitud de Onda, Diodo Láser, Biestabilidad, Sensor Óptico REFERENCIAS Y ENLACES[1] Wei Xia, Xuzong Chen, "Recent developments in fiber-based optical frequency comb and its applications", Meas. Sci. Technol., 27, No.4 (2016) http://dx
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