| Citation: |
Chen Zhiwen, Li Baojun, Chaudhari B S, Chua S J. A 2×3 Photonic Switch in SiGe for 1.55μm Operation[J]. Journal of Semiconductors, 2006, 27(3): 494-498.
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Chen Z W, Li B J, Chaudhari B S, Chua S J. A 2×3 Photonic Switch in SiGe for 1.55μm Operation[J]. Chin. J. Semicond., 2006, 27(3): 494.
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A 2×3 Photonic Switch in SiGe for 1.55μm Operation
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Abstract
A silicon-based photonic switch is proposed and simulated based on the multimode interference (MMI) principle and the free-carrier plasma dispersion effect in silicon-germanium.The proposed switch,designed for 1.55μm window operation,is useful for DWDM optical networks.The switch consists of two input single-mode ridge waveguide ports,a MMI section,and three output single-mode ridge waveguide ports.In the MMI section,two index-modulation regions are placed to divert input optical signals from the two input ports to each of the three output ports.Switching characteristics are demonstrated theoretically by a beam propagation method for 1.55μm operation.The simulated results show that the insertion loss of the switch is less than 1.43dB,and the crosstalk is between -18 and –32.8dB.-
Keywords:
- integrated optics,
- photonic switch,
- multimode interference
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References
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Proportional views
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