光纖陀螺儀有高敏感度的優點可應用於導航。然而，使用單模光纖光圈的光纖陀螺儀容易受到環境的影響造成訊號消逝。除此之外，不完美的偏振片和融接角度的誤差會造成偏振誤差。因此，利用高消偏的偏振片以及全光纖式的去偏振光纖陀螺儀可以有效的幫助降低偏振誤差及訊號消逝。在本研究中，作者利用基因演算法去找出光纖陀螺儀中最佳的結構設計，其結果顯示找到的最小誤差大概為10-3 角度/小時。作者同時也提出一個使用史托克參數的方法去設計一個新的架構。其架構設計將單模光纖光圈利用史托克參數的量測方法將其光纖變成像是在空氣中傳導，在瓊斯矩陣就等同於單位矩陣。將其架構放入光纖陀螺儀中，其結果顯示誤差可降到10-4角度/小時左右。由模擬結果顯示，新的架構可以達到去偏振光纖陀螺儀的效果或者是更好。因此，此結果顯示了此新架構的可能性。

Fiber optic gyroscopes (FOGs) have the advantage of high sensitivity and can be used for navigation. However, the FOGs made use of the single-mode (SM) fibers can be easily affected by the environment which causes the signal fading of the light. Also, the imperfect polarizer and angles of misalignments cause the polarization errors. Use of the high-extinction-ratio fiber polarizer in all-fiber depolarized gyroscopes have significantly aided in constructing such gyroscopes to minimize unmeasurably low polarization errors and signal fading.
In this study, the author uses the method of genetic algorithm to find the optimal structures of the depolarized FOG which the minimal bias error can be found at about 10-3deg/hour. The author also proposes a new structure that uses the Stokes parameter method for designing a free-space unit matrix of the SM fiber coil. The bias error can be down to the order of 10-4 deg/hour. The results show that the new structure may have the same stability as the depolarized FOG or even better. It shows that using free-space unit matrix of the SM fiber coil for FOG is feasible.

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