On-Chip Quantum Frequency Combs

• DOI: 10.1364/opn.27.12.000046
• Publication Date: 2019-02-15T19:50:42Z
• Authors: C. Reimer; M. Kues; P. Roztocki; F. Grazioso; T. Johnston; R. Morandotti; B. Wetzel; B. E. Little; S. T. Chu; D. J. Moss; Y. Bromberg; L. Caspani
• Keywords: QC350; 0211 other engineering and technologies; 02 engineering and technology; Optics. Light

Nonclassical light sources of single and entangled photons are the backbone of future quantum communications infrastructure, and the cornerstone for realizing optical quantum computers. To reach practical applications, however, the enormous technical complexity of today’s sources must be drastically reduced through the development of integrated devices. The same tiny devices must also be capable of generating very large, complex entangled states. Only by satisfying these apparently contradictory requirements will it be possible to cut costs and, thus, move quantum technologies out of research laboratories and into our daily lives.