1.6-W cw coherent power from large-index-step (delta n=0.1) antiguided laser arrays

Haiquan Yang; Jerry Lopez; Luke J. Mawst; Jerome Kent Wade; Thomas L. Earles; Dan Botez

doi:10.1117/12.344518

1 April 1999 1.6-W cw coherent power from large-index-step (Δ n=0.1) antiguided laser arrays

Haiquan Yang, Jerry Lopez, Luke J. Mawst, Jerome Kent Wade, Thomas L. Earles, Dan Botez

Proceedings Volume 3628, In-Plane Semiconductor Lasers III; (1999) https://doi.org/10.1117/12.344518
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

Near-resonant antiguided arrays with large effective-index step between element and interelement regions have been developed. 2.2 X diffraction-limited beamwidth (0.67 degrees) at 1.6 W and 9 X threshold in CW operation has been achieved. 1 W power resides in the central lobe. The external differential quantum efficiency and threshold current are 40% and 0.4 A, respectively, for 1 mm-long devices of 191 micrometer emitting aperture. The power conversion efficiency at 1.6 W is 23%. The thermal lensing effect in high-index-step near-resonant antiguided array hardly affects high-order modes and therefore, about 2 X diffraction-limited beam can be maintained to high powers.

Citation Download Citation

Haiquan Yang, Jerry Lopez, Luke J. Mawst, Jerome Kent Wade, Thomas L. Earles, and Dan Botez "1.6-W cw coherent power from large-index-step (Δ n=0.1) antiguided laser arrays", Proc. SPIE 3628, In-Plane Semiconductor Lasers III, (1 April 1999); https://doi.org/10.1117/12.344518

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