118 citations · 255 across the 7 of their papers we have counts for
7 papers
Ultrabright narrow-band telecom two-photon source for long-distance quantum communication
Kazuya Niizeki, Kohei Ikeda, Mingyang Zheng +7
We demonstrate an ultrabright narrow-band two-photon source at the 1.5 -μm telecom wavelength for long-distance quantum communication. By utilizing a bow-tie cavity, we obtain a ca…
Binary phase oscillation of two mutually coupled semiconductor lasers
Shoko Utsunomiya, Naoto Namekata, Kenta Takata +3
A two-site Ising model is implemented as an injection-locked laser network consisting of a single master laser and two mutually coupled slave lasers. We observed ferromagnetic and…
Quantum receiver beyond the standard quantum limit of coherent optical communication
Kenji Tsujino, Daiji Fukuda, Go Fujii +4
The most efficient modern optical communication is known as coherent communication and its standard quantum limit (SQL) is almost reachable with current technology. Though it has b…
On the efficiency of quantum lithography
Christian Kothe, Gunnar Björk, Shuichiro Inoue +1
Quantum lithography promises, in principle, unlimited feature resolution, independent of wavelength. However, in the literature at least two different theoretical descriptions of q…
Sub-shot-noise-limit discrimination of on-off keyed coherent signals via a quantum receiver with a superconducting transition edge sensor
Kenji Tsujino, Daiji Fukuda, Go Fujii +4
We demonstrate a sub-shot-noise-limit discrimination of on-off keyed coherent signals by an optimal displacement quantum receiver in which a superconducting transition edge sensor…
Analysis of the generation of photon pairs in periodically poled lithium niobate
Jonas Soderholm, Keiichi Hirano, Shigehiko Mori +2
The process of spontaneous parametric down-conversion (SPDC) in nonlinear crystals makes it fairly easy to generate entangled photon states. It has been known for some time that th…