HELIUM-NEON LASER SUPPLY DEVICE Russian patent published in 2011 - IPC H01S3/09 

FIELD: radio engineering.

SUBSTANCE: helium-neon laser supply device includes rectifier, transformer, multiplier, current sensor, stabiliser and modulator and for compensation of ageing errors of circuit components and thermal effects of environment. In addition, block of resistors and comparator unit is introduced into the device. At that, input of block of resistors is connected to output of multiplier and input of current sensor, and output is connected to input of comparator unit. Output of current sensor is connected to control input of comparator unit. Output of comparator unit is connected to control electrode of modulator.

EFFECT: improving stabilisation accuracy of laser radiation of helium-neon lasers.

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