Multi-wavelength erenkov radiations in a microring resonator in combination with two gratings  

作　　者：Rangsan Jomtarak Preecha P.Yupapin 

机构地区：[1]Faculty of Science and Technology,Suan Dusit Rajabhat University [2]Advanced Studies Center,Department of Physics,Faculty of Science,King Mongkut's Institute of Technology Ladkrabang (KMITL) [3]Interdisciplinary Research Center,Faculty of Science and Technology,Kasem Bundit University [4]Spintronics Research Center,Department of Physics,Faculty of Science,Kasetsart University

出　　处：《Optoelectronics Letters》2015年第4期252-255,共4页光电子快报（英文版）

摘　　要：In this paper,the erenkov radiation of light pulse in a microring and gratings is simulated and investigated.The system design consists of a two-defect grating incorporating a microring,connected with a uniform grating.In simulation,the continuous wave(CW) light pulse with wavelength centered at 1.55 μm is input into the microring device via the two-defect grating.The resonant outputs from the two-defect grating propagate through the microring and uniform grating,where the time delays of those two input pulses with different wavelengths through the system are distinguished by the output uniform grating.From the obtained resonant output pulses,we find that the red-shifted and blue-shifted erenkov pulses are observed.In applications,such a proposed system can be used to form two different optical delay pulses,in which the change in erenkov radiation of them,i.e.,time delay within a microring device system,can be useful for erenkov radiation imaging and sensing applications.

关 键 词：grating resonant resonator distinguished propagate shifted centered connected Heidelberg backward 

分 类 号：TH74[机械工程—光学工程]