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Society of Photo-Optical Instrumentation Engineers

We report here the preliminary results obtained with the multi-conjugate adaptive optics (MCAO) system at the Dunn Solar Telescope (DST/NSO MCAO) and the optical setup and performances are presented…

First results from the NSO/NJIT solar adaptive optics system

The National Solar Observatory and the New Jersey Institute of Technology have developed two 97 actuator solar adaptive optics (AO) systems based on a correlating Shack-Hartmann wavefront sensor…
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Development of a coherent OTDR instrument

The principles of operation and performance of a coherent OTDR system designed for use at 1.3 μm are given and its realization as a robust field-portable instrument with a specified performance of better than 24-dB one-way range, and 0.2-dB fault loss resolution is presented.
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Solar multiconjugate adaptive optics at the Dunn Solar Telescope: preliminary results

We report here the preliminary results obtained with the multi-conjugate adaptive optics (MCAO) system at the Dunn Solar Telescope (DST/NSO MCAO) and the optical setup and performances are presented…
View on SPIE (opens in a new tab)

Solar multiconjugate adaptive optics at the Dunn Solar Telescope

Solar observations are performed over an extended field of view and the isoplanatic patch over which conventional adaptive optics (AO) provides diffraction limited resolution is a severe limitation.…
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Progress with solar multi-conjugate adaptive optics at NSO

We have implemented a MCAO experiment at the Dunn Solar Telescope. The MCAO system uses 2 deformable mirrors, one conjugated to the telescope entrance pupil and other one conjugated to a layer in the…
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Advanced Technology Solar Telescope: a progress report

The four-meter Advanced Technology Solar Telescope (ATST) will be the most powerful solar telescope and the world's leading resource for studying solar magnetism that controls the solar wind, flares,…
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Adaptive Optics at the Big Bear Solar Observatory: Instrument Description and First Observations

In 2004 January, the Big Bear Solar Observatory (BBSO) was equipped with a high‐order adaptive optics (AO) system built in collaboration with the National Solar Observatory (NSO) at Sacramento Peak.…
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Coherent optical receiver for 680 Mbit/s using phase diversity

A coherent optical receiver using a multiport optical coupler to provide phase diversity is described. By this means, only homodyne bandwidth is required in the signal processing, but with tolerances…
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The Advanced Technology Solar Telescope: beginning construction of the world's largest solar telescope

The 4m Advance Technology Solar Telescope (ATST) will be the most powerful solar telescope and the world's leading ground-based resource for studying solar magnetism that controls the solar wind,…
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