Silicon photonic microring resonators can be fabricated with the conventional CMOS technology. But there is one
fundamental problem with this new technology that must be solved: wavelength non-uniformity. In this paper, a new
approach to solve this problem is presented. It intends to show that a device problem can sometimes be tackled with an
Optical switching technologies exhibit many characteristics that the electronic switching technologies do not have. One such characteristic lies in switching states. An electronic crosspoint, having open and close as its two switching states, only allows one traversing signal. But an optical switching crosspoint, such as a directional coupler or a MEMS mirror, usually allows two traversing signals. This paper studies how the characteristic can expand the switching capabilities of an optical switch and shows new ways of building more crosspoint-efficient nonblocking switches.
Recently, researchers have investigated the use of photonic circuit switching, or optical time division multiplexing, as a mean to sub-divide the bandwidth of wavelength channels in Dense Wavelength Division Multiplexing networks. In this paper, we present our study on the use of optical buffer in a photonic circuit switching network and how routing and time-slot assignment can be used to optimize the effectiveness of optical buffer. We will also discuss how photonic circuit switching may be integrated into the emerging IP-centric control and management scheme of GMPLS.