Title :
Laser-beam attenuation measurement using acousto-optic modulator
Author :
Kawakami, Tomoya ; Yokoshima, I.
Author_Institution :
Electrotechnical Laboratory, Tsukuba, Japan
Abstract :
A laser-beam attenuation-measurement method using the first-order diffraction from an acousto-optic modulator is newly developed. The attenuation is determined from the voltage of the 30 MHz driving signal of the modulator. A value of attenuation of more than 50 dB can be measured at 633 nm.
Keywords :
acousto-optical devices; attenuation measurement; laser beams; optical modulation; optical variables measurement; acousto-optic modulator; first-order diffraction; laser-beam attenuation-measurement method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830444
