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Costas-Loop Based Carrier Recovery in Optical Coherent Intersatellite Communications Systems Semjon Schaefer
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... avoided and hence cycle slips should be compensated for, e.g. by optimisation of the OPLL bandwidth. VI. CONCLUSIONS We presented an analysis of the nonlinear OPLL, which is used for carrier recovery in optical intersatellite links. The Costas-loop based control system is required for coherent detec ...
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... The Solution: GCE Tools for Data Mining, Analysis & Synthesis Automating this cumbersome process is clearly necessary to support large-scale data synthesis. At the Georgia Coastal Ecosystems LTER we have developed a suite of MATLAB-based software tools (GCE Data Toolbox for MATLAB) that can help bri ...
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... Essentially, edge-emitting LEDs will almost automatically work as Lasers, too, if simple conditions are met The active region must end in "mirror" surfaces, which are most simply obtained by cleaving the crystal. Diamond type crystals will always cleave along {110} planes, which contains the fewest ...
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3D optical data storage



3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".
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