Distributed gain from multilayer photonic crystal fibers with negative-refraction materials

作者：Shen Tinggen^*; Fang Mingyang; Ma Junfeng; Song Xuehua; Li Zhenghua

来源：Journal of Russian Laser Research, 2007, 28(1): 48-54.

DOI：10.1007/s10946-007-0003-x

• transmission spectra
• multilayer PCFs
• negative-refraction materials
• distributed gain

Distributed optical amplification from photonic-crystal fibers (PCFs) with layered structure composed of positive- and negative-refraction materials is studied by the finite-difference time-domain method. We found that the transmission spectra, with transmissivity far greater than unity at discrete transmission bands, have a band-gap structure with distributed gain, but the optical gain for defect modes is much smaller than that for transmitting modes, and maxima usually occur at the upper- and lower-band edges. This suggests that PCFs can be employed in dense wavelength-division multiplexed fiber-optics communication systems as transmission media carrying optical signals without crosstalk.

• 出版日期2007-2
• 单位中国人民解放军镇江船艇学院; 江苏大学