Abstract

The constantly growing need for fast and secure optical communication systems resulted in the rapid development of classical and quantum photonic technologies. Continuous research on improving the capacities of communication channels and the efficiency of optical information processing systems were naturally followed by miniaturization. Photonic integration combined with spectral-temporal multiplexing has led to improvements in communications. In this paper, we present accurate control of temporal and spectral profiles of optical pulses generated at the telecom wavelengths using an indium phosphide-based photonic integrated circuit. The device enables simultaneous temporally and spectrally resolved measurements using single photon counting. We discuss its applications in multidimensional time-frequency quantum key distribution, where security relies on time-frequency uncertainty, and other applications.

Spectral phase control and temporal superresolution toward the single-cycle pulse

T. Binhammer, E. Rittweger, U. Morgner, R. Ell, and F. X. Kärtner
Opt. Lett. 31(10) 1552-1554 (2006)

Precise tuning of single-photon frequency using an optical single sideband modulator

Hsin-Pin Lo and Hiroki Takesue
Optica 4(8) 919-923 (2017)

Precision spectral manipulation of optical pulses using a coherent photon echo memory

B. C. Buchler, M. Hosseini, G. Hétet, B. M. Sparkes, and P. K. Lam
Opt. Lett. 35(7) 1091-1093 (2010)

Ultrafast quantum key distribution using fully parallelized quantum channels

Robin Terhaar, Jasper Rödiger, Matthias Häußler, Michael Wahl, Helge Gehring, Martin A. Wolff, Fabian Beutel, Wladick Hartmann, Nicolai Walter, Jonas Hanke, Peter Hanne, Nino Walenta, Maximilian Diedrich, Nicolas Perlot, Max Tillmann, Tino Röhlicke, Mahdi Ahangarianabhari, Carsten Schuck, and Wolfram H. P. Pernice
Opt. Express 31(2) 2675-2688 (2023)

Photonic integrated quantum key distribution receiver for multiple users

Lingwen Kong, Zhihao Li, Congxiu Li, Lin Cao, Zeyu Xing, Junqin Cao, Yaxin Wang, Xinlun Cai, and Xiaoqi Zhou
Opt. Express 28(12) 18449-18455 (2020)