Laser beam modulation using corner reflector and deep diffraction grating

A new scheme of the power modulator of laser beam is based on a corner-reflector unit with a relief diffraction grating that is placed on a plane of the unit and has a relief depth of several wavelengths of the laser radiation. It is shown that angular oscillations of the unit make it possible to im...

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Bibliographic Details
Published in:Journal of communications technology & electronics 2017-07, Vol.62 (7), p.822-826
Main Authors: Komotskii, V. A., Sokolov, Yu. M., Suetin, N. V.
Format: Article
Language:English
Subjects:
Communications Engineering
Communications equipment
Engineering
Gratings (spectra)
Laser beams
Lasers
Linearity
Modulation
Networks
Novel Radio Systems and Elements
Rapid prototyping
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Summary:A new scheme of the power modulator of laser beam is based on a corner-reflector unit with a relief diffraction grating that is placed on a plane of the unit and has a relief depth of several wavelengths of the laser radiation. It is shown that angular oscillations of the unit make it possible to implement modulation of the zero-order diffraction beam at a modulation depth of almost 100% and a relatively high linearity of the modulation characteristic that is reached at modulation depths of greater than 50%.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226917070063