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Sensitive photonic crystal phase logic gates |
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| Authors: | Kai-Shun Wu Jian-Wen Dong Di-Hu Chen Xiao-Nan Luo He-Zhou Wang |
| Affiliation: | 1. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University , Guangzhou, China;2. Key Laboratory of Digital Life, Sun Yat-sen University , Ministry of Education, Guangzhou, China kwinson@ust.hk;4. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University , Guangzhou, China;5. Key Laboratory of Digital Life, Sun Yat-sen University , Ministry of Education, Guangzhou, China |
| Abstract: | Total optical phase logic gates are reported in this paper. They are constructed by coupled-defect photonic crystal after two problems are overcome by a heterostructure or an asymmetric structure. Both half and all-phase logic gates are discussed. The sensitivity of these total optical phase logic gates not only are two orders sensitive than those using amplitude-signal, but also have many other advantages: such as very low energy cost. By using such phase logic gates, only a continued wave laser with one frequency is sufficient to operate the phase logic gate or the whole optical integrated circuit. |
| Keywords: | photonic crystal phase logic gates all-optical signal processing and computing optical communication all-optical computer |