Analysis on one-way dual wavelength time transfer via fiber link based on TIVGVD

摘要

In order to meet the increasing requirement of accurate time synchronization in the “single-fiber one-way” fiber opticWDM-network, a one-way dual wavelength time transfer scheme based on the temperature-induced variations ofgroup velocity dispersion (TIVGVD) is proposed. We set up a model of one-way time transfer by using time delaydifference of dual wavelength to reversely derive the one-way delay variations with the help of Sellmeier expression.The influence of wavelength difference and temperature on one-way delay variationsis simulated and analyzed. Theimpact of wavelength drift and temperature estimation error on measurement accuracy is studied, which providesquantitative guidance on experimental research and application of one-way time transfer.