摘要
A 2×2 cross/bar polymer electro-optic(EO) routing switch is proposed,which is composed of two passive channel waveguides and two active EO polymer microrings with bending radius of only 13.76 μm.Detailed structure,theory and formulation are provided to characterize the output power of the switch.For obtaining fundamental mode propagation,small bending loss and phase-matching between channel waveguide and microring resonator(MRR) waveguide,the structural parameters are optimized under the wavelength of 1550 nm.Analyses and simulations on output power and output spectra indicate that a switching voltage of 5 V is desired to realize the exchange between cross state and bar state,the crosstalk under cross state and that under bar state are about 28.8 dB and 39.9 dB,respectively,and the insertion losses under these two states are about 2.42 dB and 0.13 dB,respectively.Compared with our four EO switches reported before,this device possesses ultra-compact size of 0.233 mm×0.233 mm as well as low crosstalk and insertion loss,and therefore it can serve as a good candidate for constructing large-scale optical routers or switching arrays in photonic network-on-chip(NoC).
A 2×2 cross/bar polymer electro-optic （EO） routing switch is＇ proposed, which is composed of two passive channel waveguides and two active EO polymer microrings with bending radius of only 13.76μm. Detailed structure, theory and formulation are provided to characterize the output power of the switch. For obtaining fundamental mode propagation, small bending loss and phase-matching between channel waveguide and microring resonator （MRR） waveguide, the structural parameters are optimized under the wavelength of 1550 nm. Analyses and simulations on output power and output spectra indicate that a switching voltage of 5 V is desired to realize the exchange between cross state and bar state, the crosstalk under cross state and that under bar state are about -28.8 dB and -39.9 dB, respectively, and the insertion losses under these two states are about 2.42 dB and 0.13 dB, respectively. Compared with our four EO switches reported before, this device possesses ultra-compact size of 0.233 mm×0.233 mm as well as low crosstalk and insertion loss, and therefore it can serve as a good candidate for constructing large-scale optical routers or switching arrays in photonic network-on-chip （NoC）.
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 Special Funds of Basic Science and Technology of Jilin University(Nos.201103076 and 200905005)
the Science and Technology Department of Jilin Province of China(No.20130522161JH)
