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Pulse response of multimode interference devices
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DOI：10.1109/JLT.2005.863278.png)
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Multimode interference (MMI) devices operating at high data rates are important in optical interconnects and optical networks. Their 1 x N splitting provides a fundamental functionality in these and other applications. To determine the speed limitations of MMI devices, the ultrashort pulse response of these devices is modeled. For example, for 50-fs Gaussian input pulses into a 1 x 16 splitter, the output pulses are severely degraded in coupling efficiency (48%) and completely broken up in time primarily due to intermodal and intramodal (waveguide) dispersion. Material dispersion is found to play only a minor role in the pulse response of MMI devices. However, for 1-ps input pulses into the same 1 x 16 splitter, the output pulses are only moderately degraded in coupling efficiency (86%) and only slightly degraded in shape.
Keyword:
integrated optics
multimode interference (MMI)
optical splitter
optical waveguide
ultrashort-pulse response
期刊
IF:
4.8
论文数:
1.7W
被引数:
3.8W
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Optical pulse controlled all-optical logic gates in SiGe/Si multimode interference.png)
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OPTICS EXPRESSIF3.3
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