摘要
A novel 1×2 polymer electro-optic(EO)switch based on seven vertical-turning serial-coupled microrings is proposed for dropping crosstalk and obtaining flat boxlike spectrum.The device structure,theory and formulation are presented,and the microring resonance order and coupling gaps are optimized.The switching voltage of the device for obtaining crosstalk lower than 30 dB under through state is decided to be about 1.86 V.Under the operation voltages of 0 V(drop state)and 1.86 V(through state),the switching performance is characterized,and the output spectrum is analyzed.The calculation results show that the crosstalk at through state and that at drop state are 30.2 dB and 53.2 dB,respectively,while the insertion losses are 0.86 dB and 3.18 dB,respectively.Owning to the seven serial-coupled microrings resonance structure,the proposed switch reveals the favorable boxlike spectrum compared with the simple device with only one microring,and thus the crosstalk under drop state is improved from 26.8 dB to 53.2 dB.Due to the low crosstalk,this device can be used in optical networks-on-chip for signal switching and routing.
A novel 1 x2 polymer electro-optic （EO） switch based on seven vertical-mining serial-coupled microrings is proposed for dropping crosstalk and obtaining fiat boxlike spectrum. The device structure, theory and formulation are presented, and the microring resonance order and coupling gaps are optimized. The switching voltage of the device for obtaining crosstalk lower than -30 dB under through state is decided to be about 1.86 V. Under the operation voltages of 0 V （drop state） and 1.86 V （through state）, the switching performance is characterized, and the output spectrum is ana- lyzed. The calculation results show that the crosstalk at through state and that at drop state are -30.2 dB and -53.2 dB, respectively, while the insertion losses are 0.86 dB and 3.18 dB, respectively. Owning to the seven serial-coupled mi- crorings resonance structure, the proposed switch reveals the favorable boxlike spectrum compared with the simple device with only one microring, and thus the crosstalk under drop state is improved from -26.8 dB to -53.2 dB. Due to the low crosstalk, this device can be used in optical networks-on-chip for signal switching and routing.
基金
supported by the National Natural Science Foundation of China(Nos.61107021,61177027 and 61077041)
the Ministry of Education of China(Nos.20110061120052 and 20120061130008)
the China Postdoctoral Science Foundation Funded Project(Nos.20110491299 and 2012T50297)
the Science and Technology Department of Jilin Province of China(No.20130522161JH)
the Special Funds of Basic Science and Technology of Jilin University(Nos.201103076 and 200905005)
