| With the development of optical communication, the requirement for communication capacity is unlimited, and the channel rate is increased continuously. Dispersion is one of the mainly limited factors to the transmission distance. In this paper the basal theory of the dispersion compensation based on F-P etalon is dissertated. A kind of apparatus for chromatic-dispersion based on F-P etalon is introduced and the compensated results of this apparatus are presented. This paper is a foundation for further research in chromatic-dispersion compensation.Theoretical analysis and experimental research in the dispersion compensator based on F-P etalon are presented. Main contents are as follows:(1) The cause of the fiber dispersion is discussed. The latest development in dispersion compensation is reviewed. A kind of compensator based on F-P etalon with simple configuration and low cost is proposed.(2) The cause of the dispersion arosed by the F-P etalon was discussed. A model on dispersion compensation of F-P etalon is derived from the theory of interference of multiple beams. The light intense profile of output beams, time delay and dispersion properties of the reflected etalon and transmitted etalon are analyzed and compared.(3) The compensator based on reflected etalon is designed and realized. The design of the compensator is stated. The loss model of collimators is demonstrated. The loss arosed by the collimator is discussed. The impact of parameter of F-P etalon for the dispersion curve is analyzed. The reasonable structure parameters are choosed and the device is made.(4) The compensation experiment is tested on the 2.5Gbit/s DWDM system, and the compensated results approaches to the simulation results. Experimental results show that this kind of compensator can do well in practical applications.(5) The quality factors, which should be considered, of the dispersion compensator based on F-P etalon are listed. The disadvantages are analyzed and improvement suggestions are proposed.
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