The papers in this special section focus on multi-band optical networks. introduce the key challenges, trends, and innovations. Current deployed networks are reaching saturation of their capacity with continuous bandwidth demand increase. However, installation new infrastructures or fibers requires high investments from network operators. Thus, alternative solutions to cope enormous needed. Cur...

Introduction : Multi-modality imaging is becoming a trend in developing new generation in vivo imaging techniques for diagnosis [1]. MRI is a high resolution imaging modality, while optical imaging provides essential functional information such as oxygen saturation in the diseased tissue. In addition, when the contrast agent is administrated, the sensitivity and specificity for each imaging com...

We study the configuration issue of three-stage multigranularity optical cross-connects (MG-OXC) for the dynamic traffic model in all-optical networks. From the single node point of view, we propose a configuration algorithm to configure different granularity crossconnects for arrival sub-requests with different traffic types and bandwidths. The performance of the configuration algorithm is eva...

Next-generation optical transport networks will automatically and dynamically provision end-to-end connections. In this paper, we study the problem of inter-domain dynamic routing under a multi-layer multi-domain network model, which allows the end-to-end connections to be set up not only across multiple routing domains but also through two transport layers: the optical layer and the digital la...

By spectrally and temporally reshaping the gain-window of a traveling-wave semiconductor optical amplifier (TWSOA) with a backward injected multi- or single-wavelength inverse-optical-comb, we theoretically and experimentally investigate the dynamic frequency chirp of the all-optical 10GBit/s Return-to-Zero (RZ) data-stream format-converted from the TWSOA under strong cross-gain depletion schem...

Automatic change pattern mapping in urban and sub-urban area is important but challenging due to the diversity of urban land use pattern. With multi-sensor imagery, it is possible to generate multidimensional unique information of Earth surface features that allow developing a relationship between a response of each feature to synthetic aperture radar (SAR) and optical sensors to track the chan...

Network survivability is becoming an important issue and a topical subject in WDM optical mesh networks. Many works have studied network survivability. However, few works have focused on survivability in multi-domain optical networks. This paper reviews the literature on survivability against failures in multi-domain optical networks. The main objective of this study is to evaluate and analyze ...