Fast overcurrent protection system in the cw laser diode driver

Andrzej Odon; Zdzislaw Stryla

doi:10.1117/12.402865

4 October 2000 Fast overcurrent protection system in the cw laser diode driver

Andrzej Odon, Zdzislaw Stryla

Proceedings Volume 4237, Laser Technology VI: Progress in Lasers; (2000) https://doi.org/10.1117/12.402865
Event: Laser Technology VI, 1999, Szczecin, Poland

Abstract

This paper presents an electronic circuit which can be used as a very fast electronic 'fuse' in laser diode drivers. The main causes of damage of laser diodes are either unexpected electrical transients or catastrophic facet damage occurring at optical power density exceeding 10⁶ W/cm². Both can be induced by electromagnetic interference in typical drivers with automatic power control. Presented scheme has a reaction time about 2 microsecond(s) , which reduces the possibility of over driving the laser diode.

Citation Download Citation

Andrzej Odon and Zdzislaw Stryla "Fast overcurrent protection system in the cw laser diode driver", Proc. SPIE 4237, Laser Technology VI: Progress in Lasers, (4 October 2000); https://doi.org/10.1117/12.402865

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