High-power vertical-cavity surface-emitting arrays

Jean-Francois Seurin; Chuni L. Ghosh; Viktor Khalfin; Aleksandr Miglo; Guoyang Xu; James D. Wynn; Prachi Pradhan; L. Arthur D'Asaro

doi:10.1117/12.769569

13 February 2008 High-power vertical-cavity surface-emitting arrays

Jean-Francois Seurin, Chuni L. Ghosh, Viktor Khalfin, Aleksandr Miglo, Guoyang Xu, James D. Wynn, Prachi Pradhan, L. Arthur D'Asaro

Author Affiliations +

Proceedings Volume 6876, High-Power Diode Laser Technology and Applications VI; 68760D (2008) https://doi.org/10.1117/12.769569
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We present record output power levels (a few hundred Watts) in continuous-wave (CW) and quasi-CW (QCW) from 2D vertical-cavity surface-emitting laser (VCSEL) arrays, corresponding to power densities exceeding 1kW/cm² in CW and 3.5kW/cm² in QCW. These VCSEL arrays emit around 975nm with narrow spectral width (<1nm) and excellent wavelength stability (<0.07nm/K). Peak power conversion efficiency of properly designed arrays exceeds 50%. Additional features of these arrays include emission in a circular, low-diverging beam, and reliable high-temperature operation. These arrays can also be operated reliably in short pulses (<200nsec) at many times their roll-over CW current, making them useful for high-energy applications. VCSEL arrays with 2.2kW peak output power operating under 100nsec pulse-width have been demonstrated.

Citation Download Citation

Jean-Francois Seurin, Chuni L. Ghosh, Viktor Khalfin, Aleksandr Miglo, Guoyang Xu, James D. Wynn, Prachi Pradhan, and L. Arthur D'Asaro "High-power vertical-cavity surface-emitting arrays", Proc. SPIE 6876, High-Power Diode Laser Technology and Applications VI, 68760D (13 February 2008); https://doi.org/10.1117/12.769569

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