Use of random amplitude transparencies in sensors of the average tilt of the optical radiation wavefront. / Okulov, V. L.
In: Instruments and Experimental Techniques, Vol. 40, No. 6, 11.1997, p. 856-857.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Use of random amplitude transparencies in sensors of the average tilt of the optical radiation wavefront
AU - Okulov, V. L.
N1 - Copyright: Copyright 2005 Elsevier B.V., All rights reserved.
PY - 1997/11
Y1 - 1997/11
N2 - To enhance the reproducibility and reliability of measurements of the average tilt of a laser radiation wavefront, a random amplitude transparency is brought into the optical system of a sensor based on a four-element matrix photodetector. The transparency is a "black-and-white" screen with a set of cells with randomly selected transmission coefficient values. It is shown that the presence of such a transparency makes it possible (at the cost of a decrease in sensor sensitivity) to sharply extend the measurement range and to considerably lower the requirements for spatial and energy radiation characteristics. An experimental sensor has a measurement range of ±1.5 mrad and a linearity range of ±0.6 mrad.
AB - To enhance the reproducibility and reliability of measurements of the average tilt of a laser radiation wavefront, a random amplitude transparency is brought into the optical system of a sensor based on a four-element matrix photodetector. The transparency is a "black-and-white" screen with a set of cells with randomly selected transmission coefficient values. It is shown that the presence of such a transparency makes it possible (at the cost of a decrease in sensor sensitivity) to sharply extend the measurement range and to considerably lower the requirements for spatial and energy radiation characteristics. An experimental sensor has a measurement range of ±1.5 mrad and a linearity range of ±0.6 mrad.
UR - http://www.scopus.com/inward/record.url?scp=27644550692&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:27644550692
VL - 40
SP - 856
EP - 857
JO - Instruments and Experimental Techniques
JF - Instruments and Experimental Techniques
SN - 0020-4412
IS - 6
ER -
ID: 71180446