Control of dispersion in fiber coupled resonator-induced transparency structure |
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| Affiliation: | 1.College of Science, Northeast Forestry University, Harbin 150040, China;2.Institute of Opto-Electronics and National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150080, China;3.College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China |
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| Abstract: | Induced transparency phenomena and strong dispersion can be produced in a coupled resonator induced transparency(CRIT) structure.In this paper,we investigate the influences of structure parameters,such as amplitude reflection coefficient and loss,on transmission spectrum and dispersion of CRIT structure,and further study the control of dispersion in the structure.The results show that in the CRIT structure,adjusting the loss of resonators is an effective method of controlling dispersion and producing simultaneous normal and abnormal dispersion.When we choose approximate amplitude reflection coefficients of the two couplers,the decrease of transmittance due to loss could be effectively made up.In the experiment,we achieve the control of dispersion and simultaneous strong normal and abnormal dispersion in the CRIT structure comprised of fiber.The results indicate the CRIT structure has potential applications in optical signal processing and optical communication. |
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| Keywords: | dispersion coupled resonator induced transparency |
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