Two-way optical frequency comparisons at5×10−21relative stability over 100-km telecommunication network fibers
نویسندگان
چکیده
منابع مشابه
Delivery of High-Stability Optical and Microwave Frequency Standards over an Optical Fiber Network
Optical and radio frequency standards located in JILA and National Institute of Standards and Technology (NIST) laboratories have been connected through a 3.45-km optical fiber link. An optical frequency standard based on an iodine-stabilized Nd:YAG laser at 1064 nm (with an instability of ;4 3 10214 at 1 s) has been transferred from JILA to NIST and simultaneously measured in both laboratories...
متن کاملOrthogonal Frequency Division Multiplexing over Multimode Optical Fibers
Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier modulation technique which is already widely employed in both wireless communication systems (WLAN, DVB-T, WiMAX) as well as wireline systems (ADSL, VDSL, PLC). Due to highly increasing speeds and lower costs of electronics, OFDM has recently also gained much interest in optical communication systems. In this paper, we will dis...
متن کاملDemonstration of quantum cipher communication using quadrature amplitude modulation technologies over 100 km optical fiber
We report a hybrid secure communication of continuous-variable quantum key distribution (CV-QKD) and quadrature amplitude modulation/quantum noise stream cipher (QAM/QNSC). In QAM/QNSC a coherent multi-level optical signal is hidden in quantum noise. We demonstrated 70 Gbit/s on-line QAM/QNSC transmission over 100 km using an FPGA-based transmission and receiver, where secure keys are delivered...
متن کاملPolarization control in spun and telecommunication optical fibers.
We consider the counterpropagating interaction of a signal and a pump beam in a spun fiber and in a randomly birefringent fiber, the latter being relevant to optical telecommunication systems. On the basis of a geometrical analysis of the Hamiltonian singularities of the system, we provide a complete understanding of the phenomenon of polarization attraction in these two systems, which allows t...
متن کاملQuantum teleportation over the Swisscom telecommunication network
We present a quantum teleportation experiment in the quantum relay configuration using the installed telecommunication network of Swisscom. In this experiment, the Bell-state measurement occurs well after the entanglement has been distributed, at a point where the photon upon which data are teleported is already far away, and the entangled qubits are photons created from a different crystal and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2014
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.90.061802