The 1×2 splitter using high contrast grating hollow-core waveguide is designed and fabricated on Silicon-On-Insulator. The experiment results present its good performance on beam splitting and polarization mainta...
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Silicon photonics has become one of the major technologies in this very information age. It has been intensively pursued by researchers and entrepreneurs all over the world in recent years. Achieving the large scale s...
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Silicon photonics has become one of the major technologies in this very information age. It has been intensively pursued by researchers and entrepreneurs all over the world in recent years. Achieving the large scale silicon photonic integration, particularly monolithic integration, is the final goal so that high density data communication will become much cheaper, more reliable, and less energy consuming. Comparing with the developed countries, China may need to invest more to develop top down nanoscale integration capability （more on processing technology） to sustain the development in silicon photonics and to elevate its own industry structure.
Data deduplication is an attractive technology to reduce storage space and upload bandwidth for increasing vast amount of duplicated and redundant data. In a cloud storage system with data deduplication, duplicate cop...
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ISBN:
(纸本)9781479936311
Data deduplication is an attractive technology to reduce storage space and upload bandwidth for increasing vast amount of duplicated and redundant data. In a cloud storage system with data deduplication, duplicate copies of data will be eliminated and only one copy will be kept in the storage. To protect the confidentiality of sensitive data while supporting deduplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. However, the issue of keyword search over encrypted data in deduplication storage system has to be addressed for efficient data utilization. This paper firstly proposes two constructions which support secure keyword search in this scenario. In these constructions, the integrity of the data can be realized by just checking the convergent key, without other traditional integrity auditing mechanisms. Security analysis demonstrates that our keyword search schemes are secure in terms of the definitions specified in the proposed security model.
We propose a continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) protocol, in which detection is conducted by an untrusted third party. Our protocol can defend all detector side ch...
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We propose a continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) protocol, in which detection is conducted by an untrusted third party. Our protocol can defend all detector side channels, which seriously threaten the security of a practical CV QKD system. Its security analysis against arbitrary collective attacks is derived based on the fact that the entanglement-based scheme of CV-MDI QKD is equivalent to the conventional CV QKD with coherent states and heterodyne detection. We find that the maximal total transmission distance is achieved by setting the untrusted third party close to one of the legitimate users. Furthermore, an alternate detection scheme, a special application of CV-MDI QKD, is proposed to enhance the security of the standard CV QKD system.
This letter proposes a compact cascaded MMI-based polarization beam splitter on silicon-on-insulator, which demonstrates 20 nm bandwidth for transverse-electric polarization and 35 nm bandwidth for transverse-magnetic...
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A coupled optoelectronic oscillator (COEO) utilizing balanced detection is proposed and experimentally demonstrated. A 10-dB improvement of phase noise performance at 10-kHz offset can be obtained compared to the trad...
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An external modulator model is proposed to analyze the optical injection-locked semiconductor lasers. This model provides a novel perspective of many characteristics of OIL-SLs, including negative chirp modulation, ph...
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We proposed and experimentally demonstrate a carrier-distributed WDM-OFDM-PON scheme in which all the optical wavelengths are generated by a single optical-frequency-comb source, achieving cost-efficient colorless tra...
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We proposed a new type of plasmonic coupler for the metal-dielectric-metal (MDM) plasmonic waveguide using the periodic metallic voids. The resonance modes in the voids and the performance of the coupler were analyzed...
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