Circuit limiting cascade failure of a series of laser diodes

Details Circuit limiting cascade failure of a series of laser diodes Circuit limiting cascade failure of a series of laser diodes

2008-01-16

2010-02-16

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

Reexamination Certificate

active

07663854

ABSTRACT:
A laser diode control system is configured to limit cascade failure of a series of laser diodes. The laser diode series is coupled to an output filter of a power supply. The power supply is a switch-mode power supply and the output filter includes an LC circuit. The laser diode control system includes a protection circuit coupled to the laser diode series. The protection circuit includes a post regulator circuit and an inductor coupled in series to the laser diode series. The post regulator includes a transistor and two amplifiers configured to regulate a voltage across the transistor. In the event of a failure within the laser diode series, a current spike across the laser diode series is prevented by regulating the voltage across resistor.

REFERENCES:
patent: 4484331 (1984-11-01), Miller
patent: 5498973 (1996-03-01), Cavaliere et al.
patent: 6580735 (2003-06-01), Theodoras, II
patent: 6797936 (2004-09-01), Kessler et al.
patent: 2005/0041707 (2005-02-01), Mangano et al.
Horowitz &Hill, The Art of Electronics, Second Edition, pp. 229-230.
“High-Density Laser Diode Controller,” Photonics, Model 8016, URL: www.newport.com/file.store/PDFs/tempPDFs/Model—80lb—HighDensity2827.pdf, pp. 9-13.
“Laser Diode Burn-In and Life Test Systems- Butterfly Devices,” Photonics, URL: www.newport.com/file—store/PDFs/tempPDFs/Laser—Diode—BurnIn4004.pdf, pp. 2-3.
“Multiple Channel Laser Diode Characterization Systems,” Photonics, URL: www.newport.com/files—store/PDF's/tempPDFs/Multiple—Channel2848.pdf, pp. 66-67.
“Integrating Sphere Optical Power Measurement Systems,” URL:www.newport.com, p. 3-30.
“Laser Diode Autobar Test & Characterization System,” Newport, pp. 8-3-8-4.

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