著作 
名稱  A New Approach to the Wavelength NonUniformity Problem of Silicon Photonic Microrings 
年度  2011 
類別  期刊論文 
摘要  Light modulators and switches based on silicon photonic microrings can be fabricated with the conventional CMOS technology. For the first time, an optical interconnect integrated on a VLSI electronic die can be realistically envisioned. In spite of this exciting development, there is still one fundamental problem that must be overcome: wavelength nonuniformity, which is a result of miniaturization of the ring and the precision limit of the current fabricating process. Existing electronic or thermooptical tuning methods are simply not scalable.
An approach that combines techniques from both the device and architecture points of view is presented in this paper. It intends to show how the devicelevel wavelength nonuniformity problem can be tackled at the architecture level. An analytical model is also developed for evaluating the probability of finding a common wavelength among multiple microring resonators. The model can provide useful insights into the design of any microringbased interconnection network. 
關鍵字  silicon photonic microrings, networks on chip, crosstalk, switching networks. 
名稱  Crosstalk Analysis for Microring Based Optical Interconnection Networks 
年度  2012 
類別  期刊論文 
摘要  Recently a new approach was proposed to tackle the wavelength nonuniformity problem of the silicon photonic ring technology. By lowering the Q value of the ring, the likelihood of finding a common operating wavelength can be significantly increased. But lowering Q will increase the crosstalk level in such a network. This crosstalk problem can be tackled with a generalized space dilation technique.
Since crosstalk is a central issue of this approach, computing the crosstalk level accurately is critical for a microringbased photonic interconnect. Prior work on crosstalk analysis for interconnects based on directional couplers assumed that the extinction ratios are the same for the two switching states. But this is usually not the case for silicon photonic microrings. In this paper, we develop an analytical model for analyzing the crosstalk level in a microringbased optical interconnection network. The analytical approach presented in the paper can be used for studying the crosstalk problem in optical networks based on other optical switching technologies.

關鍵字  crosstalk, silicon photonic microrings. 
名稱  Exploiting TwoWavelength Switching Capability of Silicon Photonic Microrings 
年度  2013 
類別  期刊論文 
摘要  Silicon photonic microrings have the capability of
handling two wavelengths simultaneously and this capability does
not exist in other types of photonic switching technologies, such
as directional couplers or MEMS. Exploiting this twowavelength switching capability has not been done before. In this paper, we use this capability to construct a new type of microringbased nonblocking optical interconnects. For a 4 4 network, the new architecture only needs four rings. In contrast, the conventional crossbarbased architecture requires 16 rings. For medium size switches, such as 8 ports or 16 ports, the new architecture also requires significantly fewer rings than conventional crossbar
switches of the same sizes. 
關鍵字  Nonblocking networks, silicon photon rings. 
名稱  Repackable multiLog_2 N networks 
年度  2016 
類別  期刊論文 
摘要  MultiLog_2 N networks have a wide range of applications in telecommunications. In this paper, we present a new type of nonblocking multiLog_2 N networks, called repackable nonblocking, wherein rearrangement activities are required only during the departures, but not upon arrivals. Furthermore, the frequency of rearrangement activities is so low that under many circumstances, they perform like strictly nonblocking networks but with a much lower hardware complexity. 
關鍵字  MultiLog_2 N networks; Photonic switching; Repackable networks 
名稱  Construction of Nonblocking Wavelength/Space Switches with AWGs and WSSes 
年度  2017 
類別  期刊論文 
摘要  In this paper, we how to use two technologies, AWG (arrayedwaveguide grating) and WSS (wavelength selective switches), to design nonblocking wavelength/space optical cross connects. An AWG is a passive device and can route multiple wavelengths simultaneously. However, to apply AWGs, there are several issues to consider, including the wavelength conversion range, crosstalk, and switch size constraint. We show a decomposition technique for designing
an AWGbased nonblocking wavelength/space switch. The decomposition is carried out in a transformed space network. The new technique is simpler in concept and more flexible in setting switch sizes. We also study another class of wavelength/space switches that are based on WSSes and compare the two approaches in terms of the scalability, switch size constraint, and number of WCs (wavelength converters) required. 
關鍵字  arrayedwaveguide grating (AWG); wavelength selective switch (WSS); nonblocking networks; Clos networks 