Abstract This paper derives the dispersion relation of microring coupled-resonator optical waveguides (CROWs) without any approximation by using the transfer matrix method. Based on the established dispersion relation of CROWs it obtains the slow group velocity and dispersion coefficient. It finds that the effect of dispersion on optical pulses can be adjusted to balance the effect of nonlinearity by changing coupling coefficient or loss, so optical soliton with group delay can be obtained in microring CROWs. The optical soliton with group delay is of great significance for applications of microring CROWs in delay lines and optical buffers of future all-optical communication systems.
Received: 21 March 2008
Revised: 04 June 2008
Accepted manuscript online:
(Optical communication systems, multiplexers, and demultiplexers?)
Fund: Project supported by the National
Natural Science Foundation of China (Grant Nos 60272075 and
60478014), the National High Technology Research and Development
Program of China (Grant No 2007AA12Z112) and partially supported by
the program of excellent tea
Cite this article:
Tian He(田赫), Zhang Yun-Dong(掌蕴东), Wang Hao(王号), Ouyang Qiu-Yun(欧阳秋云), Wang Nan(王楠), and Yuan Ping(袁萍) Optical soliton with group delay in microring coupled-resonator optical waveguides 2009 Chin. Phys. B 18 221
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