Scanning analyzer for studying the three-dimensional radiation pattern of a CO 2 laser
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L.M.
Klyukin et al., Photographing on Magnetic Tapes [in Russian], Atomizdat, Moscow
(1971). 2. 3. 4. 5. 6.
7.
B . M . Abakumov et al., "Photometric methods and apparatus for investigations in the IR range,'L Trudy VNIIFTRI, VNIIOFI (1977). S . P . Morzova, "Nondestructive production quality control," Tr. Nauchno-Issled. Inst. Nauchpribor., No. 6 (1972). P . A . Morosov et al., Piezo and Ferromagnetic Materials and Their Application [in Russian], MDNTP, Moscow (1972). Ya. T. Zagorskii et al., Izmer. Tekh., No. 3 (1977). All-Union State Standard (GOST) 8.200-76: "State special standard and all-state verification system of means for measuring the relative power density distribution in a crosssection of a continuous laser radiation beam in the 0.4-i0.6-~ wavelength range." Yu. K. Rebrin, The Control of an Optical Beam in Space [in Russian], Sovetskoe Radio, Moscow (1977).
SCANNING ANALYZER FOR STUDYING THE THREE-DIMENSIONAL RADIATION PATTERN OF A CO~ LASER UDC 621.375.826.038.84
S. P. Morozova, P. A. Morozov, B. E. Lisyanskii, V. A. Sholokhov, T. P. Malysheva, and T. G. Perfilova
When working with complex, multipath optical systems, including CO~ lasers, it is important to monitor the nature of the energy distribution in optical channels, where the power density is 10 -6 W/cm2or less. A very sensitive high-speed instrument, the LV-3 laser viewer was built for this purpose. This viewer reconstructs on a kinescope a visible image of the cross section of the laser radiation at the same time as the image of the laser radiation is being scanned optically and mechanically in two mutually perpendicular directions relative to the radiation detector. The brightness of the reconstructed image is proportional to the radiation intensity of the corresponding image sections. The LV-3 laser viewer consists of a receiving camera with an optical display attachment, which has a video monitor with an electronic sampling block and an oscillograph. The receiving camera of the LV-3 I, whose optical diagram is shown in Fig. i, contains a focusing mirror I, a scanner 2 with a plane mirror 4, a radiation detector 3, a preamplifier,
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Translated from Izmeritel'naya Tekhnika, No. I0, pp. 24-25, May, 1978. 0543-1972/78/2105-0627507.50
9 1978 Plenum Publishing Corporation
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photodiode converters, and amplifiers for line and frame synchronization pulses. The optical confocal attachment II for converting the analyzed beam to the diameter of the entrance aperture of the receiving camera includes two off-axis spherical mirrors 5, i0, and plane mirrors 6-9. Plane mirror 4 scans the laser beam vertically relative to the sensitiv
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