A temperature modulated multi-spectral matrix optical fiber coding identification system and method

Abstract

The present invention discloses a fiber optic coding identification system and method of a temperature-modulated multi-spectral matrix. The system includes: a tunable laser module group, which is composed of a plurality of tunable laser modules of different wavelength bands, each tunable laser module includes a light-emitting chip and a temperature modulation device; a wavelength division multiplexer; a circulator; an optical fiber, on which a fiber optic coding is arranged; an APD photoelectric collector; an AD acquisition card; and a main controller. In this embodiment, a plurality of tunable laser modules emit light one by one in a patrol, and cooperate with the APD photoelectric collector and the AD acquisition card, and the acquisition frequency is more than 40 times that of the traditional wavelength detector, and the reflection signal acquisition of a single central wavelength light source in the entire optical fiber link can be completed at one time, so as to realize faster identification of the optical fiber coding at a lower cost. In combination with the temperature modulation device acting on the light-emitting chip, multiple changes of the central wavelength of a single light source can be realized, thereby improving the accuracy of optical fiber coding identification.

Images