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Optical Clock
Optical Clock news and technical articles from Laser Focus World. Search Optical Clock latest and archived news and articles
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Optical clock recovery system achieves 80 Gbit/s
… and u2t Innovative Optoelectronic Components GmbH (Berlin, Germany) have demonstrated a flexible, 80-Gbit/s optical clock recovery based on an electrical phase-locked loop (PLL) made of commercially available components. The experimental …
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OPTICAL-FREQUENCY MEASUREMENT: Mercury-ion optical clock beats cesium standard
… frequency of a mercury (Hg) optical clock are smaller than those of the ..... standards.1 The mercury-ion optical clock consists of a 563 nm laser that ..... basically eliminated by averaging the optical - clock frequencies that were measured …
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Quantum-entangled ions tango to the tick of an optical clock
By the mid to late 1990s, advances in atomic spectroscopy had increased the resolution of atomic clocks based on the cesium microwave frequency transition to better than one part in 1015.
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Redefining time
… title has been transferred to an optical clock housed at the U.S. National ..... transitions, the so-called optical clock ," says Stefan Droste, a researcher ..... Institute of Quantum Optics. The NIST optical clock , for example, is more than one …
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Re-defining Time: Transmitting extremely precise clock signals over long distances could help pave the way to a new definition of the second
… title has been transferred to an optical clock housed at the U.S. National ..... transitions, the so-called optical clock ," says Stefan Droste, a researcher ..... Institute of Quantum Optics. The NIST optical clock , for example, is more than one …
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Programmable optical processor achieves multichannel OTDM-to-WDM conversion
… with N different signal “tributaries,” or channels, feeds a clock-recovery system, which provides a clean optical clock signal that is then split into N different wavelengths, with the resulting signal pulses (SPs) processed by the …
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PHOTONIC FRONTIERS: OPTICAL CLOCKS: Optical clocks set the pace in accurate timekeeping
… watch,” says Chris Oates, an optical - clock researcher at NIST in Boulder ..... measurement time—so the more stable optical clock needs only a few seconds to reach ..... of optical clocks One type of optical clock is based on trapping and isolating …
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Lattice-trapped atoms are a precise time reference
… interference pattern of lasers as quantum references. This optical clock has a linewidth one order of magnitude narrower than ..... narrowest linewidth reported for a neutral-atom-based optical clock . Using a frequency comb to measure the clock laser …
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New Products
… Applications include true time-delay signal processors for phased-array antennas, optical time-domain multiplexing, optical clock distribution, and optical buffering within all-optical routers. Little Optics, Annapolis Junction, MD Robotic …
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SILICON LASERS: Intel and UCSB create first modelocked silicon laser
… specific data rate, says Koch. The potential applications for modelocked silicon lasers are numerous, including optical - clock signal generation, light detection and ranging, clock recovery, and coherent communications systems. “The most …
