[1] [1] Chomat M. Efficient suppression of thermally induced noreciprocity in fiber optic sagnac interferometers with novel double-layer winding. Appl. Opt., 1993, 32(11):2289～2291

[2] [2] Ruffin P B, Smith R H. Fiber winding approaches for environmentally robust IFOG sensor coils. Components for fiber optic applications, Proc. SPIE, 1992, 1792:179～189

[3] [3] Sawyer J, Ruffin P B, Sung C C. Investigation of the effects of temporal thermal gradients in fiber optic gyroscope sensing coils. Opt. Engng., 1997, 36(1):29～34

[4] [4] Wanser K H. Fundamental phase noise limit in optical fibers due to temperature fluctuations. Electron. Lett., 1992, 28(1):53～54