Attenuation, modal, and polarization properties of n < 1, hollow dielectric waveguides.
Attenuation, modal, and polarization properties of n < 1, hollow dielectric waveguides.
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DOI：
10.1364/ao.32.005302
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发表时间：
1993-09
期刊：
影响因子：
1.9
通讯作者：
C. C. Gregory-C.;James A. Harrington
中科院分区：
文献类型：
--
作者：
C. C. Gregory-C.;James A. Harrington
使用Marcatili和Schmeltzer [Bell系统]的近似形式计算空心蓝宝石和铅基氧化玻璃波导的衰减系数。[j].科技学报，2003,(1):1 - 2。将这些结果与精确计算结果进行了比较，发现对于大于100 μ m的孔径，一致性非常好。虽然空心铅玻璃波导的测量损耗与理论一致，但空心蓝宝石波导的损耗大于最低阶模式的损耗。这种多余的损耗是由于蓝宝石内表面的粗糙度造成的。空心介质波导也显示出保持极化和单模的一些空心金属波导。
The attenuation coefficients for hollow sapphire and lead-based, oxide glass waveguides are calculated using an approximate formalism from Marcatili and Schmeltzer [Bell Syst. Tech. J. 43, 1783-1809 (1964)]. These results are compared with an exact calculation, and the agreement is found to be excellent for bore diameters greater than 100 µm. Although the hollow lead glass waveguides have measured losses in agreement with theory, the hollow sapphire waveguides have losses greater than those calculated for the lowest-order mode. This excess loss is due to roughness of the inner surface of the sapphire. The hollow dielectric waveguides are also shown to preserve polarization and the single mode as do some of the hollow metallic waveguides.