Zhang Qingmiao, Xie Dan, XIONG Lei. Research on characteristics of four-hole composite structured photonic crystal fibers[J]. 2015,(6):43-45. DOI: 10.13756/j.gtxyj.2015.06.010.
A simple-structured four-hole composite photonic crystal fiber with high nonlinearity and low confinement losses is proposed.Its air-hole diameter d =0.2μm and pitch of holesΛ =1.8μm.The numerical calculation results show that when a unique four-hole unit structure is introduced into the cladding region
the nonlinear coefficient is up to 83.3 W-1km-1 and the confinement loss lower than 10-9 dB/m at the wavelength of 1.55μm
and the corresponding effective mode field area is only 1.46μm2.These characteristics can be used in supercontinuum generation
nonlinear optics and optical communication systems.
关键词
光子晶体光纤非线性限制损耗有效模场面积
Keywords
PCFnonlinearityconfinement losseffective mode field area