Abstract
We report on a numerical analysis of the nonlinear coupling characteristics in triangular triple-core photonic crystal fibers (TTC-PCFs) by using coupled mode theory. The results show that the coupling of the TTC-PCFs exhibit more excellent power selectivity than that of the dual-core PCF and sharper optical switching and coupling-band with lower critical power are implemented in asymmetric TTC-PCF. By adjusting the parameters of the TTC-PCF structure and length, a coupling-band power controlled with better flatness will be obtained, in which more than 90% input power can be transferred. These results maybe offer a new possibility for application fields including optical switching, pulse shaping and pulse compressing.
| Original language | English |
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| Pages (from-to) | 26828-26833 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 18 |
| Issue number | 26 |
| DOIs | |
| State | Published - 20 Dec 2010 |