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据称藤仑英国分公司新的熊猫光纤因其结构特别,故能提供特别高的双折射。它有各种芯径,工作波长可从480nm到1300nm。由于它的结构是双向对称的,即由纤芯和二层施加反向应力的包层组成,所以它能提供1×10~(-3)以上的双折射,因而即使在宽温度范围内和要求严格的发送条件下也能保持高的偏振稳定性。“熊猫”特性使得它适于需要利用偏振光相位差的应用场合和要求获得高精度测量的应用场合。据说这种光纤的纤芯偏心度极小、弯曲性能好和曲率半径小。
The new panda fiber of the British crown vine is said to offer exceptionally high birefringence because of its special structure. It has a variety of core diameter, working wavelength from 480nm to 1300nm. It is capable of providing birefringence of 1 × 10 -3 or more because it is bilaterally symmetrical, that is, composed of a core and a cladding that exerts reverse stress on the two layers, so that even in a wide temperature range and Strict transmission conditions can also maintain high polarization stability. The “Panda” feature makes it suitable for applications that need to exploit the phase difference of polarized light and for applications that demand high precision measurements. It is said that this optical fiber core eccentricity is extremely small, good bending performance and small radius of curvature.