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An analysis of splice loss between photonic crystal fibers(PCFs) and conventional single-mode fibers(SMFs) is presented at bending and straight conditions,by using scalar effective index method(SEIM),vectorial effective index method(VEIM),and finite-difference frequency domain(FDFD) methods.It is shown that when there is a slight bending at the vicinity of splice joint,the spot size increases sharply at higher frequencies.On the basis of the obtained results,a mechanism to optimize the splice loss between PCFs and conventional SMFs,both with any geometry,is suggested.The results can be utilized for PCF-based devices to be jointed to SMF as a transmission medium.
An analysis of splice loss between photonic crystal fibers (PCFs) and conventional single-mode fibers (SMFs) is presented at bending and straight conditions, by using scalar effective index method (SEIM), vectorial effective index method (VEIM) difference frequency domain (FDFD) methods. It is shown that when there is a slight bending at the vicinity of splice joint, the spot size increases sharply at higher frequencies. On the basis of the obtained results, a mechanism to optimize the splice loss between PCFs and conventional SMFs, both with any geometry, is suggested. This result can be utilized for PCF-based devices to be joined to SMF as a transmission medium.