A New Approach To Detect Continuous Gravitational Waves By The Folded Optical Soliton Storage Ring Adhering To Resonance Masses

The people study gravitational waves predicted by the general relativity and found that the gravitational waves have the immense penetrability and the interference and it offers us a new sense with which to understand our universe. For half a century most physicists considered the diction of gravitational waves to be an impossibility, but 40 years ago Joseph Weber first outlined instrument development. He used a massive aluminium bar as the antenna. Following his work, researchers all over the world have been working hard to build different types of gravitational wave detectors. At present, two typical sorts of detectors are resonance masses and laser interferometers in the world. Now we propose a folded optical soliton storage ring method for GWs detection. A folded optical soliton storage ring is divided into two parts and adhered to two resonance bars, respectively. Two resonance bars put crossly in a horizontal plane, A stream of optical solitons with same time span are consecutively pumped into the storage ring by optical technique and then running continuously in the ring by means of the optical compensation system. The bars together with the fiber of the optical soliton storage ring will be elongated and shortened periodically by the tidal force of GWs, and the time span between two solitons will change correspondingly. The most important is that the time span changes between any two solitons with a phase lag of 180 degrees can be accumulated continuously if the frequency of the solitons running in the storage ring is also close to the frequency of the external GW. We detect continuous gravitational waves by measuring the time span changes between the solitons.Theoretical analysis shows that both resonance effect of the bar antenna and the multi-fold effect of the light beam in the laser interferometer method can be combined into this method if the eigen frequency of the bars and the frequency of the solitons running in the storage ring are close to the frequency of the external continuous gravitational wave. In order to make the soliton continuously running, the amplifiers are inject into the optimal ways. Then the Gordon-Haus effect is the noise induced by the spontaneous emission in amplifiers which results in the timing jitter of soliton runs via the fiber nonlinearity. The spontaneous noise were suppress by filter and the time jitter is direct proportion to the running time. Then the running data deal with the Kalman filter and the time jitter is suppressed to a constant at a long distance. The gravitational wave can be finally determined after the accumulation of the time span changes exceeding the soliton timing jitter constant and the measure precision. The simple model about the measure of the fiber strain with optical soliton is analysed and how to deal with the model measure data by Kalman Filtering is investigated. The result is obtained that the Kalman Filtering is time-independent. Though the optical soliton time jitter is in direct proportion to the running time, but through the long time sampling, the variance of the measure result is a constant, and that shows the project is feasible.