Eye safe high power laser diode in the 1410-1550nm range

Julien Boucart; Brian de Largy; Mark Kearley; Norbert Lichtenstein

doi:10.1117/12.843185

17 February 2010 Eye safe high power laser diode in the 1410-1550nm range

Julien Boucart, Brian de Largy, Mark Kearley, Norbert Lichtenstein

Proceedings Volume 7583, High-Power Diode Laser Technology and Applications VIII; 75830Q (2010) https://doi.org/10.1117/12.843185
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

The demand for high power lasers emitting in the 14xx-15xxnm range is growing for applications in fields such as medical or homeland security. We demonstrate high power laser diodes with emission at 1430, 1470 and 1560 nm. Single multimode emitters at 1470nm emit about 3.5W in CW operation. Power conversion efficiency can reach values as high as 38.5%. With this base material, single and multi-emitter fiber coupled modules are built. Additionally, bars on passive and microchannel coolers are fabricated that deliver 25W and 38W respectively in CW mode, while obtaining more than 80 W in pulsed mode. All reliability tests show an outstanding stability of the material with no signs of wearout after 3750 hrs under strong acceleration conditions.

Citation Download Citation

Julien Boucart, Brian de Largy, Mark Kearley, and Norbert Lichtenstein "Eye safe high power laser diode in the 1410-1550nm range", Proc. SPIE 7583, High-Power Diode Laser Technology and Applications VIII, 75830Q (17 February 2010); https://doi.org/10.1117/12.843185

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