We experimentally demonstrate a 160-Gb/s Ethernet 4 packet switch using an 8.6-mm-long silicon nanowire for optical 5 burst switching, based on cross phase modulation in silicon. One 6 of the four packets at the bit rate of 160 Gb/s is switched by an 7 optical control signal using a silicon based 1 × 1 all-optical packet 8 switch. Error free performance (BER < 1E-9) is achieved for the 9 switch...

In this paper two different paradigms to realize a scalable all-optical packet switch with label swapping will be presented. All the functions required for switching the packets are based on all-optical signal processing without any electronic control. This allows very low latency and potential photonic integration of the systems. We report for both techniques experimental results showing the r...

Scalability of packet switched cross-connects that utilize all-optical signal processing is a crucial issue that eventually determines the future role of photonic signal processing in optical networks. After reviewing several labeling techniques, we discuss label stacking and label swapping techniques and their benefits for scalable optical packet switched nodes. All-optical devices for impleme...

We report on an all-optical switch that operates at low light levels. It consists of laser beams counterpropagating through a warm rubidium vapor that induce an off-axis optical pattern. A switching laser beam causes this pattern to rotate even when the power in the switching beam is much lower than the power in the pattern. The observed switching energy density is very low, suggesting that the...

The main emphasis in developing DOS has been on achieving low crosstalk (CT). CT in the order of -30 dB is acceptable in conventional DOS and below that value is hard to achieve. Relatively low drive voltage (or power requirements) is also necessary to optimized DOS. This paper depicts the design of Y-branched digital optical switches (DOS) with optimized on-chip area coverage, reduced driving ...

We reports operating condition of a modified architecture of all-optical wavelength-selective switch controlled by a single light. Switching characteristics in a proposed circuit are analyzed with regard to their phase dependence. Keywordsoptical switch; asymmetric X-junction coupler; Raman amplifier; wavelength-selective; Integrated optics; Optical waveguide; Wide wavelength range

The holographic optical switches are three-dimensional devices, having the characteristics of flexibility and compactness. The procedure to realize a 4×4 active splitter and active combiner network with holographic optical switches is discussed in detail. After optimum design, the unique features of compactness and flexibility of holographic optical switches not only significantly saves space o...

We propose a new scheme based on quantum dot-bimodal cavity coupling system to realize all-optical switch and logic gates in low-photon-number regime. Suppression of mode transmission due to the destructive interference effect is theoretically demonstrated by driving the cavity with two orthogonally polarized pulsed lasers at certain pulse delay. The transmitted mode can be selected by designin...

We demonstrate an optical hitless bypass switch based on nanomechanical proximity perturbation for high-bitrate transparent networks. Embedded in a single-level pi-imbalanced Mach-Zehnder interferometer, the two nanomechanical-based Deltabeta-directional couplers permit broadband signal rerouting on-chip, while the selected wavelength remains unaffected at all times for optical filter reconfigu...

Now-a-days data centers are experiencing rapid increase in network traffic and the number of servers in racks due to exponential increase of data, at the same time they have to cope with the demands of cloud computing and several emerging web applications. Keeping all these in mind we also have to consider compatibility when we will interconnect several data centers. Present data centers networ...