Semiconductor laser drive device and image recording device

Details Semiconductor laser drive device and image recording device Semiconductor laser drive device and image recording device

1997-11-25

1999-10-12

Bovernick, Rodney

Coherent light generators

Particular component circuitry

Optical pumping

372 31, H01S 300

Patent

active

059663952

ABSTRACT:
The present invention relates to a semiconductor laser drive device, and an image recording device whose function includes scanning a predetermined body to be scanned with a laser beam carrying image information in the course of recording an image, and which makes high speed image regeneration while maintaining a high quality of the image, wherein the devices are equipped with a first feedback circuit including a first operational amplifier and a second feedback circuit including a second operational amplifier, so that the double feedback can concurrently be effected to obtain current vs. light output characteristics with a high speed and high accuracy in an analog mode.

REFERENCES:
patent: 5097473 (1992-03-01), Taguchi
H.C. Casey, Jr., et al., "Hetrostructures lasers", Academic Press New York, 1978, pp. 176-179, pp. 224-229 and pp. 258-265. No Month.

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